ARUP's Laboratory Test Directory

Platelet Aggregation Studies : 0030160
[ image for: Time Sensitive]
Time Sensitive
[ image for: UUHSC Testing Only]
UUHSC Testing Only


Mnemonic: PLTAG

Methodology: Aggregation
Performed: Tue
Reported: 1-2 days
Specimen Required: Patient Prep: Fast from midnight until specimen is drawn in a.m.

Collect: Hemostasis/Thrombosis laboratory must be called at (801) 583-2787 extension 2151 to schedule testing before sample is drawn. Lt. blue (sodium citrate) AND lavender (EDTA) or pink (K2EDTA).

Specimen Preparation: Transport 45 mL whole blood (sodium citrate) AND 5 mL whole blood (EDTA). Specimen must be received within one hour of draw.

Storage/Transport Temperature: CRITICAL AMBIENT.

Remarks: Include list of current medications and most recent platelet count.

Unacceptable Conditions: Specimens not collected at ARUP (500 Chipeta Way, Salt Lake City, UT). Specimens that have been centrifuged or refrigerated.

Stability (collection to initiation of testing): Ambient: 1 hour; Refrigerated: Unacceptable; Frozen: Unacceptable

Reference Interval:
ADP: Normal
Collagen: Normal
Arachidonic: Normal
Ristocetin: Normal
CPT Code(s): 85576 x4