Lab Test

Platelet Count (Citrate Tube)

PLT

Test Codes

EPIC: LAB3332

Department

Hematology

Specimen Collection Criteria

Collect: One Light Blue-top 3.2% Sodium Citrate tube.

Physician Office/Draw Specimen Preparation

Maintain specimens refrigerated (2-8°C or 36-46°F) prior to transport. Room temperature (20-26°C or 68-78.8°F) is acceptable for a maximum of 8 hours.

Preparation for Courier Transport

Transport: Whole blood or capillary blood, refrigerated (2-8°C or 36-46°F). (Minimum: 2.0 mL whole blood or 300 mcL capillary blood)

Rejection Criteria

  • Specimens containing clots.
  • Insufficient volume.
  • Specimens received on ice.
  • Frozen specimens.
  • Centrifuged specimens.

Storage

Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): 8 hours
Refrigerated (2-8°C or 36-46°F): 72 hours
Frozen (-20°C/-4°F or below): Unacceptable

Specimen Storage in Department Prior to Disposal:

Refrigerated (2-8°C or 36-46°F): 5 days

Laboratory

Canton Laboratory
Dearborn Hematology Laboratory
Farmington Hills Hematology Laboratory
Grosse Pointe Hematology Laboratory
Lenox Laboratory
Livonia Laboratory
Royal Oak Hematology Laboratory
Taylor Hematology Laboratory
Trenton Hematology Laboratory
Troy Hematology Laboratory
Wayne Hematology Bank

Performed

Sunday – Saturday, 24 hours a day.
STAT results available in 30 minutes; 60 minutes if further verification is necessary.
Routine results available in 90 minutes, unless further verification is necessary.

Reference Range

Female: 150-400 bill/L.
Male: 150-400 bill/L.
Pediatric (1 day – 17 years): 150-450 bill/L.

Test Methodology

SYSMEX XN Series.

Clinical Utility

This assay aids in the evaluation, diagnosis and follow-up of bleeding disorders, purpura/petechiae, drug induced thrombocytopenia, idiopathic thrombocytopenic purpura, disseminated intravascular coagulation, leukemia, and chemotherapeutic management of malignant disease.

CPT Codes

85049

LOINC: 777-3

Contacts

Last Updated

8/15/2024

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