Test Name

Platelets

Test Code

122

Unit

10³/mL

Station

Hematology

Synonym Name/Abbreviation

Thrombocytes; Plt, Platelet
Count

CPT Code

85049

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 4h. 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

Evaluate, diagnose and/or follow up bleeding disorders;
thrombocytopenia; disseminated intravascular coagulation; leukemia states;
chemotherapy management, evaluate platelet
transfusions.

Limitations

Clotted sample; hemolysis; tube not filled to correct volume.
Clumping may cause low count. EDTA-induced platelet clumping may cause
false low platelet count. RBC or WBC fragments (including fragmented
fragile leukemic cells) may cause falsely elevated counts. Drugs may
increase platelets count.

Patient Preparation

No patient preparation.

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

 150 to 450 x
10³/mL