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Test ID: PSTF
Protein S Antigen, Plasma

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Reference Values Describes reference intervals and additional information for interpretation of test results. May include intervals based on age and sex when appropriate. Intervals are Mayo-derived, unless otherwise designated. If an interpretive report is provided, the reference value field will state this.

TOTAL

Males: 80-160%

Females

<50 years: 70-160%

> or =50 years: 80-160%

 

FREE

Males: 65-160%

Females

<50 years: 50-160%

> or =50 years: 65-160%

Normal, full-term newborn infants or healthy premature infants may have decreased levels of total protein S (15-50%); but because of low levels of C4bBP, free protein S may be normal or near the normal adult level (> or =50%). Total protein S reaches adult levels by 90 to 180 days postnatal.*



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