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Test Name

Protein S Antigen, Total

CPT Code(s)

85305

Methodology

Immunoturbidimetric

Limitations

Expected impact by therapeutic levels (potential interference depends upon drug concentration): Warfarin: no effect to decrease; Heparin (UFH or LMWH): no effect; Dabigatran or Argatroban (Thrombin Inhibitors): no effect; Rivaroxaban or Apixaban (Factor Xa Inhibitors): no effect.

Reference Range(s)

70-140 % normal

To view specimen requirements and codes please Select a regional laboratory.

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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.

* 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.

5165
5165
5165
5165
5165
5165X
5165X
5165
5165
5165X
5165X
46771P
5165
5165
5165
5165
5165
5165
5165X
146771
5165
5165
Protein S Antigen, Total
5165