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- Ordering Info
To view specimen requirements and codes please select your laboratory:
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85300, 85302, 85303, 85305, 85306, 85384, 85420, 85730
Antithrombin III Activity; aPTT; Fibrinogen; Protein C Activity; Protein C Antigen; Protein S (Total & Free); Plasminogen Activity
Minimum: 2 mL platelet-poor citrated plasma collected in each 5 vials of 3.2% sodium citrate (light blue-top) tubes
Draw (light blue-top) tubes. Fill to complete volume. Mix well by gentle inversion. Centrifuge 2000 x g for 10 minutes. Remove plasma to plastic centrifuge tubes, using a plastic pipette. Centrifuge again. Pipette the platelet-poor plasma into 5 clean, plastic, screw-capped vials. Transport samples on dry ice in the same shipping container. Avoid freeze/thaw cycles.
Room temperature: Unacceptable
Frozen (-70°C): 21 days
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153
Set up and Report available: Varies with assay
See individual tests
The Result and LOINC information listed below should not be used for electronic interface maintenance with Quest Diagnostics. Please contact the Quest Diagnostics Connectivity Help Desk for more information at 800-697-9302.NOTE: The codes listed in the table below are not orderable Test Codes.
|Result Name||LOINC Code||Component Name|
|19673||Protein C Antigen||27820-0||Protein C Ag actual/Normal|
|10170||Protein S Antigen, Free||27821-8||Protein S.free Ag actual/Normal|
|19683A||Protein S Antigen, Total||27823-4||Protein S Ag actual/Normal|
|2133A||Thromboplastin Time||14979-9||Coagulation surface induced|
|2351A||Protein C, Activity||27819-2||Protein C actual/Normal|
|43053||Fibrinogen Activity, Clauss||3255-7||Fibrinogen|
|216||Antithrombin III Activity||27811-9||Antithrombin actual/Normal|
Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.
The CPT codes provided 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 payer being billed.
LOINC assignment is based on a combination of test attributes, including the method used by the performing laboratory. For tests not performed by Quest Diagnostics, codes are assigned by the performing laboratory.
* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.