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Test Code REPTILASE Reptilase Time, Plasma

Performing Laboratory

Northwell Health Laboratories

Methodology

Semi-automated: Start 4

Reference Values

<20 seconds

Test Classification and CPT Coding

85635

Day(s) and Time(s) Performed

Monday through Friday

Specimen Required

Container/Tube: Light blue-top (3.2% sodium citrate) tube

Specimen: 0.5 mL citrated plasma

Transport Temperature: Frozen

Collection Instructions:

1. If no other tube is drawn, draw a discard tube.

2. If there is a delay in transport, spin down, spin plasma again, and send citrate platelet-poor plasma. Double-centrifuged specimens are critical for accurate results as platelet contamination may cause spurious results.

3. Fill tube completely.

4. Mix by gently inverting several times.

5. Send aliquot frozen.