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Test Code LAB318 PLATELET FUNCTION ANALYSIS

Important Note

Samples MUST be collected at UVMMC due to specilaized handling requirements.

This test requires a separate blue top collected just for this test. Prefer a 3.5 mL collection tube.

Samples MUST be walked to the lab for testing.  DO NOT send via pneumatic tube system.

This test is subject to reflex testing, see Laboratory Reflex Testing Policy, you have the option to decline reflex testing if you believe it is not medically necessary, If platelet function is above normal limit, a COL/ADP cartridge will be performed (CPT: 85576).

Additional Codes

Orderable Codes:

Epic Code Atlas Code Mayo Access ID Order LOINC
LAB318 PFA1 FAH5425 72257-9

Result Component(s):

Reporting Name Epic Code Atlas Code Mayo Access ID Result LOINC
COL/EPI Cartridge 12301002503 PFAEPI FAH5426 24472-3

Specimen Information

Container Specimen Temperature Collect Vol Submit Vol Min Vol Stability
Blue Top Tube Whole Blood Ambient To fill line To fill line To fill line 4 hours

Testing must be performed within 4 hours of sample collection. Requires a separate aliquot if other coagulation tests are requested.

Platelet Function Analysis (PFA) is strongly dependent on the correct method of blood collection requiring venipuncture through a19-21G needle drawn directly into a full size evacuated sodium citrate tube. Do not draw through a line or port, which may cause platelet clumping and result in specimen rejection. Ensure proper specimen mixing by gently inverting by hand 4 times. Must remain unspun at ambient temp. Testing must be performed within 4 hours of sample collection. PFA requires separate tube; additional samples must be collected if other coagulation tests are requested.

 

Test Schedule / Analytical Time / Test Priority

Daily / 24 Hours / Available STAT

Method

PFA-100

Instrumentation

PFA-100

Reference Range

COL/EPI: 94 – 193 Seconds

COL/ADP: 71 – 118 Seconds

Section

Coagulation

Performing Location

University of Vermont Medical Center

Is the UVMMC lab NY State Certified to perform this testing?  Yes/No

Yes

CPT Code(s)

Description CPT Code
Platelet Function Analysis 85576