Absolute Lymphocyte Count

Test Code

8561

CPT Code(s)

85004, 85048

CPT Code is subject to a Medicare Limited Coverage Policy and may require a signed ABN when ordering.

Test Code

8561

CPT Code(s)

85004, 85048

CPT Code is subject to a Medicare Limited Coverage Policy and may require a signed ABN when ordering.

Not offered in Quest Nichols Institute - Chantilly, VA | Quest Diagnostics Nichols Institute (IFD) – San Juan Capistrano | Quest Nichols Institute -San Juan Capistrano, CA. Please provide SERVICE AREA INFORMATION to find available tests you can order.

In-home collection may be available in your area for purchase through Quest Mobile.

Clinical Significance

Absolute Lymphocyte Count - Increased understanding of immunodeficiency syndrome and AIDS have identified the importance of absolute lymphocyte count in addition to the specific cell type such as CD4 lymphocytes. In pediatric ages up to 14 years old, acute infectious lymphocytosis is a clinical disorder, suspected to be of enterovirus-Coxsackie A subgroup that may have upper respiratory symptoms, fever, diarrhea and abdominal pain or a totally asymptomatic clinical course. Other conditions with absolute lymphocytosis are B. pertussis infection and lymphocytic leukemoid reaction. The most commonly known lymphocytosis ...

Test Resources

Clinical Focus

Autoimmune Rheumatic and Related Diseases

Test Details

Includes

WBC, Absolute Lymphocytes, % Lymphocytes, % Reactive Lymphocytes

Methodology

Electronic Cell Sizing/Counting/Cytometry/Microscopy

Reference Range(s)

See Laboratory Report

Alternative Name(s)

Lymphocyte Count, Absolute

LOINC® Codes, Performing Laboratory

Service Area must be determined

Includes

WBC, Absolute Lymphocytes, % Lymphocytes, % Reactive Lymphocytes

Methodology

Electronic Cell Sizing/Counting/Cytometry/Microscopy

Reference Range(s)

See Laboratory Report

Alternative Name(s)

Lymphocyte Count, Absolute

LOINC® Codes, Performing Laboratory

Service Area must be determined

Preferred Specimen(s)

Whole blood from a full EDTA (lavender-top) tube

Minimum Volume

Microtainer 500 uL
1 mL whole blood EDTA (lavender-top) tube

Collection Instructions

Maintain specimen at room temperature. Do not refrigerate. If multiple draw, collect EDTA (lavender-top) tube last. Traumatic draw can introduce thromboplastin and trap WBC and platelets. Refrigeration can precipitate fibrin and trap WBC and platelets.

Transport Container

EDTA (lavender-top) tube

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 48 hours

Reject Criteria

Hemolysis • Clotted

Setup Schedule

Service Area must be determined

Preferred Specimen(s)

Whole blood from a full EDTA (lavender-top) tube

Minimum Volume

Microtainer 500 uL
1 mL whole blood EDTA (lavender-top) tube

Collection Instructions

Transport Container

EDTA (lavender-top) tube

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 48 hours

Reject Criteria

Hemolysis • Clotted

Setup Schedule

Service Area must be determined

In-home collection may be available in your area for purchase through Quest Mobile.

Test Details

Clinical Significance

Test Resources

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.

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