Orderable EAP code:

LAB00240

Billable EAP Codes:

CPT Codes:

Lab Section:

Core Lab

Turnaround Time:

Routine and Urgent: 60 Minutes

Test Schedule:

24 hours, 7 days a week.

Units:

mg/dL

Critical Values:

Less than or equal to 50 mg/dL.

Specimen Requirements:

3.2% sodium citrate tubes are acceptable provided they are filled to the line on the manufacturers label. Tubes must be full (see comments below). 

Stability: 
Whole blood specimens are stable for up to (and including) 4 hours at room temperature. 
Citrate plasma separated from cells is stable for up to (and including) 8 hours at room temp. 
Citrate plasma separated from cells is stable for up to (and including) 14 days at -20 degrees C.

Pediatric Specimen Requirements:

Add blood to the 1.3 mL mark of Pediatric BLUE top tube, 3.2% sodium citrate. Pediatric tubes are acceptable provided they are filled to the line on the manufacturers label.

Reference Range:

Reference Range: 150 to 393 mg/dL

Comments:

Draw volume is critical due to the liquid anticoagulant. Allow tubes to fill by vacuum.

• Tubes with rubber stopper: fill to line on label.
• Tubes with plastic (Hemogard) cap: the fill level is above the top of the label.
• Syringe: do not remove the vacutainer stopper. Insert the needle through the stopper and allow the tube to fill by vacuum. Do not overfill the vacutainer.
• Pediatric tubes have no vacuum. Remove the cap and add blood to the 1.3 mL mark. Do not overfill.

Clotted specimens are unacceptable.

Synonyms:

Coags
Fibrinogen Level, Quantitative