Test Name

Lymphocytes

Test Code

111

Unit

%

Station

Hematology

Synonym Name/Abbreviation

Lym

Performing Facility

American Medical Labs, Herzliya
Pituah

Analyzer

Siemens Advia 2120 or 120

Test Method

Automated Cell Counter

AML Preferred Tube

3 mL EDTA whole blood

Storage Instructions

Room temperature up to 4 h.

Stored and transported refrigerated up to 24
h

Min. Volume

1 mL

Comments

Gently Invert tube 8-10 times after venipuncture to ensure
smooth mixing with anti-coagulant

Turn-Around-Time

One day

Intended Use

Part of the differential white blood cell count. The second
most common of the five types of WBCs normally seen in the blood. They
make antibodies and attack foreign objects, playing both an immediate and
delayed role in response to infection or inflammation. Increased numbers
of lymphocytes are seen in most viral infections, some bacterial
infections, some cancers, Graves’ disease. Decreased numbers of
lymphocytes are seen in steroid exposure, some cancers, immunodeficiency,
renal failure and Lupus

Limitations

Clotted sample; hemolysis; tube not filled to correct
volume.

Patient Preparation

No patient preparation
needed.

Reasons for Rejection

Clotted sample, improper tube, incorrect volume, incorrect
labeling, dilution of blood with I.V. fluid, samples older than 24
hours.

Adult Reference Ranges

 20 to 40
%