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Test Code FACTORXIII Factor XIII Assay, Plasma

Performing Laboratory

Northwell Health Laboratories

Methodology

LI ACL TOPS Antigenic Latex Assay

Reference Values

51 - 163 %

Test Classification and CPT Coding

85290

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.

Day(s) and Time(s) Performed

Monday through Friday

1 time per week

Computer Interface Code

PDM #  5500638