Reference Interval:
1-89 days: 15-55%
90-179 days: 35-92%
180-364 days: 45-115%
1-5 years: 62-120%
6-9 years: 62-130%
10-17 years: 60-140%
18 years and older Male: 74-147%
18 years and older Female: 55-123%
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| Interpretive Data: |
Patients on oral anticoagulants will have decreased protein free S values. Patients should be off oral anticoagulant therapy for two weeks for accurate measurement of free protein S levels. Decreased levels of protein S free are also associated with DIC, liver disease, pregnancy, and inflammatory syndromes.
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| CPT Code(s): |
85306
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