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Test Code Billings Clinic: 8316 Citrated Platelet Count

Important Note

This test must be walked down to the lab. It can not be sent in the tubestation.

Performing Laboratory

Billings Clinic Laboratory: Hematology

Useful For

Patients who repeatedly have platelet clumps which preclude determination of an accurate platelet count

Methodology

optical

Specimen Requirements

Specimen Collection: Blood

Container(s): 3.2% Na Citrate Tube (blue top)

Preferred Volume to Collect: 2.7 mL (full tube)

Minimum Volume to Collect: 1.8 mL (full tube)

 

Collection Instructions:

  •  Obtain venous blood by clean venipuncture.
  •  Avoid leaving the tourniquet on the patient’s arm for an extended period prior to collection.
  •  Tube must be full. Do not over fill or under fill; look for the fill indicator lines.
  •  Gently invert 8 - 10 times to mix anticoagulant with blood
  •  Testing is conducted on whole blood, do not centrifuge specimen.
  •  Transport Temperature: Ambient

Storage/Stability

48 Hours Ambient 

Reject Due To

  •   Clotted specimens
  •   Frozen specimens
  •   Under or Overfilled tubes

Reference Values

140 – 400 × 10^3/uL

LOINC Code Information

CPT: 85049

Loinc: Platelet Citrate: 777-3