Client Communications


On November 30, 2021, the U.S. SARS-CoV-2 Interagency Group (SIG), which includes the Centers for Disease Control and Prevention (CDC), the National Institutes of Health, the Food and Drug Administration (FDA), and Health and Human Services (HHS), classified the Omicron variant as a Variant of Concern. The current understanding of the Omicron VOC at this time is as follows: 

  • Preliminary data from South Africa suggest that the mutations to the receptor binding protein of the variant virus will confer increased infectivity.
  • Preliminary studies indicate that there are no unusual symptoms associated with Omicron variant infection, and as with other variants, some patients are asymptomatic. Symptoms may be milder in persons who have been vaccinated or previously infected with SARS CoV-2.
  • The presence of mutations in the SARS-CoV-2 virus in a patient sample has the potential to impact test performance. The impact of mutations on a test's performance is influenced by several factors, including the sequence of the variant, prevalence of the variant in the population, and the design of the test including the analytic target. Indeed, tests which interrogate for a single target are particularly vulnerable.

Laboratory evaluation of SARS-CoV-2, including the Omicron Variant of Concern, at East Side Clinical Laboratory:

  • All high-throughput SARS-CoV-2 molecular assays performed at East Side Clinical Laboratory are designed to interrogate for multiple targets of the viral genome and have received emergency-use authorization by the FDA.
  • Based on in silico analysis, all molecular assays are expected to detect the Omicron variant of concern.
  • For some assays, including the Thermo Fisher Taq Path PCR assay, a specific deletion in the spike (S) gene (Δ69-70) in the Omicron variant results in an S-gene dropout, also referred to as an S-gene target failure (SGTF).
    • The S-gene target failure pattern may be identified in the Omicron variant (BA.1 sub-lineage), but this pattern is also seen in previously identified variants (e.g., Alpha).
    • Since these tests are designed to detect multiple genetic targets, the overall test sensitivity is not significantly impacted.
    • The S-gene target failure pattern provides a signal that the Omicron variant (BA.1) may be present and that the isolate may be suitable for sequencing and/ or other public health considerations.
    • The S-gene target failure pattern does not necessarily mean that an individual with SARS-CoV-2 has the Omicron variant.
  • For clients who have concerns about antigen or other point of care assays that they provide, the assay manufacturer can be contacted for information about expected analytical performance impact.
  • New SARS-CoV-2 Variant of Concern Identified: Omicron (B.1.1.529) Variant. Health Alert Network 00459. December 1, 2021.
  • SARS-CoV-2 Viral Mutations: Impact on COVID-19 Tests. U.S. Food and Drug Administration. December 6, 2021.
  • Technical Brief: Predicted Impact of Variants on Abbott SARS-CoV-2/COVID-19 Diagnostic Tests. Abbott. November 26, 2021
  • Impact of SARS-CoV-2 mutations (including Omicron) on the cobas® SARS-CoV-2 and cobas® SARS-CoV-2 & Influenza A/B Tests for use on the cobas® 6800/8800 Systems and the cobas® SARS-CoV-2 and cobas® SARS-CoV-2 & Influenza A/B Tests for use on the cobas® Liat® System. Roche Client Bulletin. November 30, 2021.
  • Thermo Fisher Scientific Confirms Detection of SARS-CoV-2 in Samples Containing the Omicron Variant with its TaqPath COVID-19 Tests. Thermo Fisher Client Bulletin. November 29, 2021.
Effective October 13, ESCL will begin performing RSV/hMPV by NAAT.

The Solana RSV + hMPV Assay is a qualitative in vitro diagnostic test for the detection and differentiation of RSV and hMPV viral RNA in nasal and nasopharyngeal swabs from patients with signs and symptoms of respiratory infection. This test is intended for use as an aid in the differential diagnosis of RSV and hMPV viral infections in humans in conjunction with clinical and epidemiological risk factors. This test is not intended to differentiate the two subtypes of RSV or the four genetic sub‐lineages of hMPV.

RSV: Human respiratory syncytial virus (RSV) is a negative single‐stranded RNA virus of the family Paramyxoviridae. RSV is the major cause of lower respiratory tract infection and hospital visits during infancy and childhood.

hMPV: Human metapneumovirus (hMPV) is a negative single‐stranded RNA virus of the family Paramyxoviridae first isolated in 2001 in the Netherlands.  hMPV may be the second most common cause (after RSV) of lower respiratory infection in young children. Compared with RSV, infection with hMPV tends to occur in slightly older children and produce disease that is less severe. Co‐infection with both viruses can occur and is generally associated with more severe disease.

Test Code: 11720
ESWABs and Dacron or Rayon swabs are also acceptable. 
Transport temperature: Refrigerated
Stability: VTM: 6 days refrigerated; eSwab 48 hours refrigerated
Result Interpretation: Negative
CPT code: 87634; 87798

For questions contact your East Side Clinical Laboratory representative

Austin, TX – April 19, 2021

Sonic Healthcare USA (Sonic), a leading provider of laboratory services in the United States, was recently included as a laboratory testing partner for the Rockefeller Foundation’s K-12 National Testing Action Program (NTAP). The NTAP program introduces school districts in the United States to leading testing companies supporting COVID-19 testing for K-12 students.

Over the last year, Sonic has been one of the leading commercial laboratories performing COVID-19 testing throughout its network of clinical laboratories and pathology practices in the United States. Sonic continues to focus on and support specific underserved patient populations and government-funded programs in partnership with local government and public health agencies to improve testing access for these communities.

Sonic is expanding testing capacity for K-12 testing programs at the following laboratory locations: American Esoteric Laboratories, located in Memphis, TN; Bernhardt Laboratories, located in Jacksonville, FL; Clinical Labs of Hawaii, located in Honolulu, HI; Clinical Pathology Laboratories, located in Austin, TX; East Side Clinical Laboratory, located in Providence, RI; GPA Laboratories, located in Greensboro, NC; LMC Pathology Services, located in Las Vegas, NV; Seacoast Pathology, located in Exeter, NH; Sunrise Medical Laboratories, located in Hicksville, NY; and WestPac Labs, located in Santa Fe Springs, CA.

“We are honored and privileged to be included amongst the leading companies supporting COVID-19 testing efforts,” said Jerry Hussong, MD, MBA, Chief Executive Officer, Sonic Healthcare USA. “Supporting the reopening of schools is paramount to COVID-19 recovery efforts; it is our social responsibility to collaborate with public health officials, school officials, and other leading private and public sector organizations. Collectively, we can quickly respond to the needs of our local communities,” added Dr. Hussong.

About Sonic Healthcare USA

Sonic Healthcare USA is a subsidiary of Sonic Healthcare Limited, one of the world's largest medical diagnostic companies, providing laboratory services to medical practitioners, hospitals and community health services, with operations in eight countries, on three continents and providing care to over 100 million patients each year. Sonic Healthcare USA is a leading provider of state-of-the-art laboratory services and pathology practices throughout the USA with eight operating divisions and nearly eight thousand US- based employees, 330 Pathologists and serving over 30 million patients per year. Sonic Healthcare USA operates under a federated business model that emphasizes medical leadership and community-based testing services to provide outstanding quality and service to the doctors and patients that they serve. For more information, visit the Sonic Healthcare website at


Sonic Healthcare USA

Dr. Jerry Hussong, MD, MBA

Chief Executive Officer


Effective February 8, 2021, ESCL is announcing availability of a Spike Antibody test for COVID-19. This immunoassay detects high affinity antibodies against spike (S) protein receptor binding domain (RBD). The assay is intended as an aid in identifying individuals with an adaptive immune response to SARS-CoV-2, indicating recent or prior infection.


This assay also identifies the immune response induced by vaccines targeting the SARS-CoV-2 Spike (S) protein receptor binding domain (RBD).


Test Code: 11359


Traceability: Internal Roche standard for anti-SARS-CoV-2 S consisting of monoclonal antibodies.


Specimen Requirements: Serum from an SST tube


Transport temperature: Refrigerated


Stability: 7 days refrigerated


Result Interpretation: <0.8 U/ml = negative, >=0.8 U/ml = positive


Positive Percent Agreement (PPA): 96.6% in samples >14 days post-PCR positive.


Negative Percent Agreement (NPA): 99.98% in potentially cross-reactive samples.


CPT code: 86769                      


For questions contact your East Side Clinical Laboratory representative

10 Risho Ave East Providence RI 02914          
Issue Date: February 5, 2021


Client Communications


Dear Providers,

East Side Clinical Laboratory is taking further steps to prevent the spread of COVID-19. Minimizing the risk of transmission among staff and between staff and patients as well as protecting people who are at higher risk for adverse health complications is of utmost concern to us.

In light of these concerns, we have implemented the following change to our practice to mitigate the impact of COVID -19:

We will not be providing nasal/throat swab collections (e.g. for influenza, group A strep, throat culture testing) at our Patient Service Centers or Independent Physician Offices during the ongoing COVID19 pandemic.

Note: Patients visiting a patient service center must wear a mask or face covering and must not be experiencing COVID -19 symptoms. Patients may not take their mask or face covering off while in our Patient Service Centers. We do not offer swab collection for COVID-19 testing.

Our mission is to provide the highest quality laboratory testing to our patients and clinical providers to aid in the diagnosis and treatment of disease.

For the safety of our patients and our staff, we cannot perform any specimen collections that would require patients to remove their masks or face coverings.

Thank you,

Walther M. Pfeifer, MD, FCAP Laboratory Director East Side Clinical Laboratory

Austin, TX – September 2, 2020

Today, Sonic Healthcare USA (Sonic) was awarded a contract from the National Institutes of Health (NIH) Rapid Acceleration of Diagnostics Advanced Technology Platforms (RADx-ATP) initiative. The contract involves funding to expeditiously ramp up COVID-19 testing to 166,000 tests per day at nine of Sonic’s network of high-throughput laboratory testing locations, giving Sonic the capacity to service geographies across the United States.

Sonic was also selected by the U.S. Department of Health and Human Services (HHS) as one of two commercial laboratories to receive critical laboratory equipment to support the expansion of COVID-19 testing. Through these investments, aggressive expansion has begun at the following Sonic COVID-19 testing locations: American Esoteric Laboratories (AEL), located in Memphis, TN, Clinical Pathology Laboratories (CPL), located in Austin, TX and WestPac Labs located in Santa Fe Springs, CA. The added capacities will be coming online beginning this week.

While the NIH contract amplifies Sonic’s existing COVID-19 testing effort for all populations, a significant component includes improving testing access for underserved communities. Sonic has been supporting these populations directly and in partnership with local government and public health agencies. Funding from the RADx initiative will be used to develop comprehensive access with measurable coverage assessment for these populations. The RADx initiative complements Sonic’s current commitment to prioritize services to the most vulnerable and high-risk patients. Servicing these populations will continue to be a central part of our testing strategy.

“In response to the urgent pandemic demands, the partnership with the NIH and HHS, provides us access to technologies, instrumentation and resources necessary to rapidly increase the scope and expedite the timeline of our current capacity expansion plans,” said Dr. Jerry Hussong, MD, MBA, the Chief Executive Officer of Sonic HealthcareUSA. “The new testing capacity will increase patient access to COVID-19 diagnostic testing across the country with timely result delivery,” added Dr. Hussong.

This project is supported by the NIH Rapid Acceleration of Diagnostics (RADx) program and has been funded in whole or in part with federal funds from the National Institutes of Health Office of the Director, Department of Health and Human Services, under Contract No. 75N92020C00027.

Lyme Modified Two-Tier Test (MTTT)

Effective Monday, August 17, 2020, East Side Clinical Laboratory will offer testing for Lyme disease with the Modified Two-Tier Testing (MTTT) methodology. It is intended to be used in symptomatic patients suspected of having Lyme disease.

MTTT is a FDA cleared sensitive and specific alternative to Standard Two-Tier Testing (STTT) for Lyme disease. Unlike the STTT, the MTTT utilizes ELISA in both the first and second tiers, and does not utilize immunoblotting (Western Blot or Line Blot methods), detecting more acute Lyme disease cases compared with the traditional testing methods.

The first-tier is an ELISA which screens for B.burgdorferi VlsE/pepC10 IgG/IgM antibodies, with positives reflexing to the second tier.

The second-tier is an ELISA utilizing B.burgdorferi WCS (Whole Cell Sonicate antigens), comprised of specific assays for IgG and IgM, in which all results are individually reported with an Index Value, followed by comments and interpretations.


  • Updated CDC recommendation for Serologic Diagnosis of Lyme Disease can be found in MMWR/August 16,2019/Vol. 68/No.32 703 or at

Test Code: 25851

Specimen Requirements: Serum from SST or plain red top tube

Transport Temperature: Refrigerated

Stability: 10 days refrigerated

CPT codes: 88618-If reflexed, add 86617(x2)


Please contact your ESCL account representative with any questions.

Effective July 1, 2020, East Side Clinical Laboratory has discontinued performing Acetest testing for serum and urine ketones due to discontinuation of reagent by the manufacturer and has been replaced with quantitative serum B-Hydroxybutyrate (6942).

The presence and degree of ketosis can be determined by measuring levels of Beta-hydroxybutyrate, which is the ketoacid present in the greatest amount in serum, accounting for 75% of the ketone bodies. During periods of ketosis, the relative percentage of Beta-hydroxybutyrate increases even more over the other two ketoacids (acetoacetate and acetone) and has been shown to be a better index of ketoacidosis including the detection of sub-clinical ketosis.

βHB levels have also been shown to be useful for assessing patients that may require additional insulin therapy following IV insulin drips for DKA. βHB may be helpful for establishing endpoints for IV therapy.

Discontinued tests with order codes:


 6007    ACETONE (SERUM)




Replacement test with order codes:



Reference Range

0.2-2.8 mg/dL

Specimen Type

Serum from SST , or Heparinized Plasma


When separated from cells; refrigerated 1 week;

frozen 1 month



Turnaround time

1 day



If you have any questions, please call East Side Clinical Laboratory at 800-455-8440

Or contact your East Side Clinical Laboratory representative.

Thank you for allowing us to continue to provide the highest quality laboratory testing services to you and your patients.

Effective April 30, 2020, East Side Clinical Laboratory (ESCL) will update reference ranges for the Complete Blood Count (CBC).

The new adult reference ranges reflect a Sonic Healthcare USA consensus which align with those of other large reference laboratories and hospital systems. The pediatric reference ranges align with those published by the American Association for Clinical Chemistry [Pediatric Reference Intervals, 7th ed. (2011)] and American Society for Clinical Pathology [Practical Diagnosis of Hematologic Disorders, 4th ed. (2006)].  The new reference ranges are not expected to significantly shift the percentage of patients flagged as having abnormal results; however, a shift of up to 5% in the number of patients with abnormal results for selected components such as hemoglobin may be seen.

Over the next 3 months, ESCL will make additional changes to CBC reporting that are aligned with accepted laboratory standards.  These include the following changes (implemented in the order listed):

  • Reporting absolute WBC counts (absolute neutrophil count, absolute lymphocyte count, etc.) with respective reference ranges.

Under most circumstances, clinically relevant WBC elevations and declines are defined by absolute counts, not by relative percentages. Current recommendations for the College of American Pathologists (CAP) and the Clinical and Laboratory Standards Institute (CLSI) recommend that absolute counts be the preferred method for reporting the WBC differential.

  • Discontinuing reporting of reference ranges for relative (%) WBC differential counts as they are not the recommended method of reporting.

For questions related to CBC reference range changes, please contact your ESCL account representative.


March 16, 2020

East Side Clinical Laboratory, Inc. is pleased to announce that testing for SARS-Cov-2/COVID-19 is available as of March 10th, 2020.

Due to strong market demand and limited supply nationwide, priorities will be given to high risk patients in accordance to CDC guidelines and endemic regions and clusters.

Test Information:
Test Code: COVIDHR - 17100

Ordering Recommendations:
Ordering provider to determine patient risk level based on CDC Guidelines and clinical judgement.

• Sonic has created an orderable code to triage patients, prioritize testing and coordinate with public health authorities:
     o SARS-COV-2 (COVID-19) - High Risk: Patients who are symptomatic, exhibiting respiratory illness (cough, fever, and dyspnea) AND have traveled to a COVID-19 endemic area, have been in close contact with a known COVID-19 patient or are otherwise considered High Risk exposure from an epidemiological perspective.
• Criteria to Guide Evaluation of PUI (Persons Under Investigation) for COVID-19: The CDC currently states Clinicians should use their judgment to determine if a patient has signs and symptoms compatible with COVID-19 and whether the patient should be tested. Decisions on which patients receive testing should be based on the local epidemiology of COVID-19, as well as the clinical course of illness.
• Clinicians are strongly encouraged to test for other causes of respiratory illness, including infections such as influenza.

• In accordance with public health guidance, clinicians should prioritize testing to following groups:
  1. Hospitalized patients who have signs and symptoms compatible with COVID-19 in order to inform decisions related to infection control.
  2. Other symptomatic individuals, such as older adults and individuals with chronic medical conditions and/or an immunocompromised state that may put them at higher risk for poor outcomes (e.g., diabetes, heart disease, receiving immunosuppressive medications, chronic lung disease, chronic kidney disease).
  3. Any person, including healthcare personnel, who within 14 days of symptom onset had close contact with a suspected or laboratory-confirmed COVID-19 patient, or who had a history of travel from affected geographic areas.

Specimen Requirements:
Sample Type:
• Upper Respiratory Tract: Nasopharyngeal Swab
Container Type: *Prefer dedicated collection device
• Nasopharyngeal swab: Viral or Universal Transport Media (VTM, UTM, VCM, UTM-RT, or M4) with Swab(s).

Must be ordered independent of other testing and include CDC PUI Form.

Handling Instructions:
Nasopharyngeal Swab: Insert a swab into the nostril parallel to the palate. Leave the swab in place for a few seconds to absorb secretions. Place swab immediately into sterile tube containing 2- 3 mL of viral transport media.
Transport: Critical Refrigerated
Unsuitable Specimens: Ambient specimens. Swabs not in viral transport media. Calcium alginate swabs. Swabs with wooden shafts. eSwab, any device refrigerated more than 72 hours post collection.

Testing Capacity:
Testing is performed seven days a week.
• Expected TAT is 1-3 days.
   o TAT may vary with changes in capacity and market demands.

CPT Codes: U0001 – Real-Time Polymerase Chain Reaction (RT-PCR)
LOINC Codes: SARS-CoV-2 Interpretation (94306-8), Naso and Oro SARS-CoV-2 (94316-7), Nasopharyngeal SARS-CoV-2 (94316-7)

Download PDF

Austin, Texas  March 13th, 2020

Sonic Healthcare USA has worked closely with its scientific partners and medical and operational leadership to bring up testing to ensure timely availability for patients in all geographies served by our laboratories. "We are closely monitoring capacity and are coordinating with our clinical laboratories to distribute testing that mitigates high demands from endemic regions and clusters in the United States," said Jerry Hussong, MD, MBA, the Chief Executive Officer of Sonic Healthcare USA.

Sonic has taken comprehensive measures to expand testing capacity, while maintaining high quality testing and meeting required turnaround times. As a result, Sonic is bringing up multiple testing platforms and methodologies.

Dr. Hussong added, "In response to this public health emergency, Sonic Healthcare USA pledges to do its part and is actively monitoring the situation. Our commitment is to ensure testing is available as this pandemic evolves." The well-being of our patients and employees is our highest priority, and we continue to be committed to the medical communities we serve.


About Sonic Healthcare USA

Sonic Healthcare USA is a subsidiary of Sonic Healthcare Limited, one of the world's largest medical diagnostic companies, providing laboratory services to medical practitioners, hospitals and community health services, with operations in eight countries, on three continents and providing care to over 100 million patients each year. Sonic Healthcare USA is a leading provider of state-of-the-art laboratory services and pathology practices throughout the USA with nine operating divisions and nearly eight thousand US-based employees. Sonic Healthcare USA utilizes a federated business model that emphasizes medical leadership and community-based testing services to provide outstanding quality and service to the doctors and patients that they serve. For more information, visit the Sonic Healthcare website at


Sonic Healthcare USA Media Contact

Chief Executive Officer
Dr. Jerry Hussong, MD, MBA 

Austin, Texas  March 6th, 2020

This week, Academic and Commercial Reference Laboratory Executives met with Vice President, Mike Pence and members of the White House's Coronavirus Task Force to collectively discuss diagnostic testing availability for COVID-19. 

Jerry Hussong, MD, MBA, the Chief Executive Officer of Sonic Healthcare USA (Sonic), was among those who met on behalf of the American Clinical Laboratory Association (ACLA) with key government officials, the CDC, and the FDA.  At the meeting, key stakeholders discussed the role of state and local public health and commercial laboratories, hospitals, and academic medical centers to increase access to testing for the Coronavirus.  "Our main goal, as a commercial laboratory, is to ensure those patients in need or at high-risk can access testing. By working together, we can accelerate those efforts with a coordinated and comprehensive approach," said Dr. Hussong.

Dr. Hussong added, "Sonic Healthcare is working with its Medical, Scientific and Operational Leadership to make patient testing available through its network of commercial laboratories in the United States and will follow the FDA guidelines for Emergency Use Authorizations (EUAs)."  The FDA has recently updated its policy, thus providing an expedited pathway for the availability of diagnostics for COVID-19.

Sonic Healthcare will continue to lead and collaborate with colleagues, government officials, and our local medical communities in response to this immediate public health crisis.

Read the ACLA Statement on COVID-19 Testing


About Sonic Healthcare USA

Sonic Healthcare USA is a subsidiary of Sonic Healthcare Limited, one of the world's largest medical diagnostic companies, providing laboratory services to medical practitioners, hospitals and community health services, with operations in eight countries, on three continents and providing care to over 100 million patients each year. Sonic Healthcare USA is a leading provider of state-of-the-art laboratory services and pathology practices throughout the USA with nine operating divisions and nearly eight thousand US-based employees. Sonic Healthcare USA utilizes a federated business model that emphasizes medical leadership and community-based testing services to provide outstanding quality and service to the doctors and patients that they serve. For more information, visit the Sonic Healthcare website at


Sonic Healthcare USA Media Contact

Chief Executive Officer
Dr. Jerry Hussong, MD, MBA 


Issued December 10, 2019: The previous protocol for urine cultures being processed by East Side Clinical Laboratory was to re-incubate for an additional 24 hours if no growth was observed initially on day 1.  Current understanding of urinary pathogens has now rendered this re-incubation unnecessary.  Most causative agents of UTI’s can be identified by routine urine culture, which has been published as not benefitting from 48 hours of incubation.  East Side Clinical Laboratory will continue to re-incubate cultures from catheterized specimens, children 10 years of age or younger, or if a clinician suspects a fastidious pathogen that requires additional incubation.


Our goal at East Side Clinical Laboratory is to ensure that patients receive results in a timely manner without compromising testing.  By reporting urine cultures in 24 hours, we ensure results are communicated timely to guide treatment decisions.  Additional incubation on routine urine cultures will not be performed unless specifically requested.


For more information regarding the change in protocol, please contact your ESCL representative or the ESCL Microbiology Supervisor (Kelly Messier, 401-455-8427). 


Thank you for allowing us to continue to provide the highest quality laboratory testing services to you and your patients.




  • Wilson ML, Gaido L.  Laboratory Diagnosis of Urinary Tract Infections in Adult Patients. Clinical Infectious Diseases. 15 Apr 2004,38(8):1150-1158. DOI 10.1086/383029.
  • Shoskes D. The American Urological Association Educational Review Manual in Urology. Third Edition. Chapter 23: Urinary Tract Infections. 2011.
  • Ulett KB, Benjamin Jr WH, Zhuo F, et al. Diversity of Group B Streptococcus Serotypes Causing Urinary Tract Infection in Adults. ASM Journal of Clinical Microbiology. July 2009,47(7):2055-2060. DOI 10.1128/JCM.00154-09
  • Patients on high dose supplements of biotin (minimum 5-10 mg/day), such as hair/nail/ skin supplements, should refrain from taking them in the 24 hours prior to laboratory test.
  • Supplements may or may not prominently indicate they contain biotin.
  • Patients taking prescribed megadose regimens (>150 mg biotin, usually prescribed for multiple sclerosis) should refrain from taking the supplements for 2-3 days prior to laboratory testing, after consulting with their physician.

THE LEVEL OF BIOTIN TYPICALLY FOUND IN MULTIVITAMIN TABLETS DOES NOT INTERFERE WITH LABORATORY TESTING. *Patients and physicians should review any lab test result that does not match the clinical presentation and consider if biotin interference is present.

Effective November 4, 2019, East Side Clinical Laboratory will no longer offer Helicobacter pylori (H. pylori) serology testing based upon changes in H. pylori testing guidelines of the American College of Gastroenterology and the American Gastroenterology Association. The discontinued antibody tests below will be inactivated in our compendium and will not be orderable. Serological antibody results have poor positive predictive value (PPV) and are no longer considered clinically useful. The alternative noninvasive testing methods demonstrate higher clinical utility, sensitivity, and specificity.

A positive H. pylori IgG, IgA, or IgM result cannot be used to predict the presence of active disease. Since antibodies to H. pylori remain detectable for years following resolution of infection, serologic testing cannot be used to distinguish active from past infection or to document eradication of the organism following successful treatment.

Many insurance companies are no longer reimbursing patients for whom H. pylori serologic testing was performed, as they consider such testing “not medically necessary”. As an alternative, providers are encouraged to collect samples for Urea Breath Test or Stool Antigen Test. Both assays are FDA cleared for use to detect H. pylori infection, and as a test of eradication. Clients should order collection kits as needed with instructions for use.

Discontinued Test With Order Codes:

Order Code


4138H. pylori IgG, IgA, IgM Antibodies
4091H. pylori IgG Antibody
4140H. pylori IgA Antibody
4141H. pylori IgM Antibody


Recommended Tests With Order Codes

Order Code


1832H. pylori Antigen, Feces
5173H. pylori Breath Test



If you have any questions please call East Side Clinical Laboratory at 800.455.8440 or contact your East Side Clinical Laboratory representative.

Effective September 15, 2019 East Side Clinical Laboratories will offer a new collection device, the APTIMA Multitest Orange Swab for Bacterial Vaginosis, Candida, Gonorrhea (GC), Chlamydia (CT) and Trichomonas (Trich) Amplification Testing. This swab can be used in place of the white label APTIMA swab (with the exception of endocervical and male urethral samples).


APTIMA Multitest Orange Swab Utilization


Clinician Collected

ESCL Test Code

GC Vaginal4180
CT Vaginal4179
Trichomonas Vaginal5650
GC/CT Vaginal4181
GC/CT Trich Vaginal5780
GC/CT Oral5740
GC/CT Anal5698
Bacterial Vaginosis Panel15700
Bacterial Vaginosis, Candida, Trichomonas16201
Bacterial Vaginosis, Chlamydia/GC16202
Bacterial Vaginosis, Candida, Chlamydia/GC, Trichomonas16203
Candida by PCR15800
Mycoplasma/Ureaplasma  PCR16770
HSV I/II, VZV by  PCR13322
HSV I/II by  PCR5367


Specimen Information

Turn Around TimeAnalytic time 2-5 days after receipt
TransportationRoom temperature (15-25°C) or refrigerated (2-8°C)
StabilityAfter inoculation, sample stable in collection device for 60 days
Rejection CriteriaEmpty collection devices, unlabeled samples and leaking samples


  Value stated and less thanValue stated and greater than










  • Male

  • Female


















CSF (Cerebral Spinal Fluid)

All Results




  • Acid Fast Culture

  • Blood Cultures

  • Stool Culture*E-Coli 0157*

All Positives















Malaria/Babesia on peripheral smear

Call/page all positive or suspicious results











Potassium (heparin)
















Therapeutic Drugs




  • Digoxin




  • Dilantin




  • Lithium




  • Phenobarbital




Total Bilirubin





Call/page if abnormal









Effective January 1, 2019, East Side Clinical Laboratory (ESCL) will discontinue offering combined testing for high and low risk Human Papillomavirus (HPV). Low Risk HPV will no longer be performed. This change is due to the implementation of newer analytic methods and testing algorithms.


The following tests/order codes will be deleted with this update:

Test NameTest Code
PAP and HPV (high and low risk)4176
PAP with GC/Chlamydia4178
HPV (high and low risk)4196
PAP smear with HPV  Reflex for Ascus/Agus4182


HPV low risk will be removed from the following test codes with this update:

Test NameTest Code
PAP with HPV reflex Ascus/Agus and GC Chlamydia4184
PAP with HPV reflex for all abnormalities and GC/Chlamydia4193


As an alternative, ESCL offers Roche high risk HPV testing with genotyping information. Amongst high risk HPV infections, genotypes 16 and 18 are most strongly associated with cervical cancer and severe Dysplasia/CIN3.


For high risk testing with genotype information, we offer the following:

Test NameCode
HPV Genotypes 16 and 189848
HPV Genotypes 16 and 18/4515670
HPV High Risk Genotype 16/18 with reflex PAP10075
HPV mRNA E6/E74174
HPV mRNA Genotpyes 16, 18/4516565
HPV mRNA with reflex to Genotypes 16, 18/4516564


High risk HPV:

  • Co-testing is endorsed by the American Congress of Obstetricians and Gynecologists (ACOG) and other authorities for woman 30-65 years of age


  • Algorithms adopted by the American Society for Colposcopy and Cervical Pathology (ASCCP) recommend high risk HPV genotyping for types 16 or 18 as an immediate alternative to a return visit for a  pelvic examination and repeat co-testing for those patients found to be high risk HPV positive and PAP negative(see algorithms at
  • Genotyping for 16 and 18 can be used to refine management of women 21-29 years of age in certain clinical scenarios

For questions related to HPV testing options, please contact your ESCL account representative.

East Side Clinical Laboratory is pleased to announce the introduction of the QuantiFERON-TB Gold Plus assay which offers optimized analysis with tuberculosis (TB)-specific antigens that elicit both CD4+ and CD8+ T-cell responses. The new 4-tube collection set enables a more comprehensive assessment of cell-mediated immune responses to TB infection

Clients should begin to order QFT - 4 tube kits but may continue to send the 3-tube collection kits until January 1, 2019 when the 3-tube version will be discontinued.

The 4-tube assay requires the same pre-analytical processing steps as the current 3 tube QuantiFERON Gold assay. Immediately after filling the tubes with 1ml blood, shake 10 times just firmly enough to coat the inner surface of the tubes without disrupting the gel.

Please use test code 9884 when ordering the 4-tube assay. Tubes should remain at room temperature for same day transport to ESCL


For questions related to TB GOLD Plus testing, please contact your ESCL account representative.


Thank you for choosing East Side Clinical Laboratory