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22230 Protein S Antigen

Protein S Antigen
Test Code:  
Useful For
There are two possible tests for Protein S Antigen depending on the Coumadin medication status of the patient. It is important to order the appropriate test as described below. When the patient has:
1. Received NO Coumadin for the past two weeks, See 'Protein S Antigen, No Coumadin' (PROT-SI)
2. On a STABLE Coumadin dose for at least two weeks, see ' Protein S Antigen, ON Coumadin' (PROT-SM)
Consult Hematology/Coagulation pathologist as needed (Marshfield Labs, Clinical Automated section).​
Ordering Applications
Ordering Application Description
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Useful For
There are two possible tests for Protein S Antigen depending on the Coumadin medication status of the patient. It is important to order the appropriate test as described below. When the patient has:
1. Received NO Coumadin for the past two weeks, See 'Protein S Antigen, No Coumadin' (PROT-SI)
2. On a STABLE Coumadin dose for at least two weeks, see ' Protein S Antigen, ON Coumadin' (PROT-SM)
Consult Hematology/Coagulation pathologist as needed (Marshfield Labs, Clinical Automated section).​
For more information visit:
For billing questions, see Contacts
For most current information refer to the Marshfield Laboratory online reference manual.