Test Code

Quest Code

CPT Codes

Preferred Specimen
6 mL plasma collected in 3.2% sodium citrate (light blue-top) tubes

Patient Preparation
Overnight fasting is required.

Minimum Volume
3 mL

Other Acceptable Specimens
Plasma collected in: EDTA (lavender-top) tubes

Collect blood into three (5 mL) sodium citrate light blue-top tubes, or three (5 mL) lavender-top tubes and place immediately in a 37°C water bath, oven, incubator, or heat block for 1 hour. It is very important that the specimen remain at 37°C until after separation of plasma from red cells.
Centrifuge the specimen for 10 minutes at 1600 RCF (G) utilizing one of the 3 options below:

1. In a "warm" centrifuge at 37°C
2. In a bench-top centrifuge placed in a "warm room" at 37°C
3. At room temperature, in a bench-top centrifuge prewarmed by running it for 10 minutes at 1600 RCF (G).
After centrifuging, decant plasma into a screw-cap vial Transport at room temperature. Do not refrigerate or freeze.

No tests can be added or poured off this tube; for cryofibrinogen evaluation only.

Transport Temperature
Room temperature

Specimen Stability
Room temperature: 7 days
Refrigerated: Unacceptable
Frozen: Unacceptable

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Specimens received refrigerated or frozen • Heparinized plasma • Gross lipemia • Gross hemolysis

Cold Precipitation

Setup Schedule

Report Available
4 to 6 Day(s)

Reference Range
See Laboratory Report

Performing Laboratory
Quest Diagnostics Nichols Institute Chantilly
14225 Newbrook Dr
Chantilly, VA 20153

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.