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CERNER / EPIC MNEMONIC / POE DESCRIPTION / CPT CODE / DAYS PERFORMED / TURNAROUND TIME / SPECIAL INSTRUCTIONS / CONTAINER TYPE / COLLECTION / SPECIMEN REQUIREMENTS / REJECTION CRITERIA / MINIMUM VOLUME / HANDLING INSTRUCTIONS / REFERENCE RANGE / TEST SYNONYM(S)

Thrombin Time (View in report form.)

CERNER / EPIC MNEMONIC: TT
POE DESCRIPTION: THROMBIN TIME; TT
CPT CODE: 85670
DAYS PERFORMED: Daily, 24 hours
TURNAROUND TIME: Routine: 4 hours. Stat: 1 hour
SPECIAL INSTRUCTIONS:

This test cannot be added onto an existing sample more than 12 hours old.

CONTAINER TYPE: Blue top (sodium citrate) tube
COLLECTION: See Section - " Specimen Collection Guidelines" - Coagulation Specimens
SPECIMEN REQUIREMENTS: Blood, 4.5 mL tube or pediatric 1.6 mL or 2.7 mL tube
REJECTION CRITERIA:

Specimen hemolyzed; Hct >55%

MINIMUM VOLUME: 3.5 mL blood (1 mL plasma)
HANDLING INSTRUCTIONS: Transport the specimen to the laboratory as soon as possible. Specimen MUST be received within 4 hours after collection.
REFERENCE RANGE: 14.9-19.8 sec
TEST SYNONYM(S):Fibrin Time

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