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Test ID: ATTF
Antithrombin Activity, Plasma

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Secondary ID A test code used for billing and in test definitions created prior to November 2011

9030

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.

> or =6 months-adults: 80-130%

Normal, full-term newborn infants may have decreased levels (> or =35-40%), which reach adult levels by 90 days postnatal.*

Healthy, premature infants (30-36 weeks gestation) may have decreased levels which reach adult levels by 180 days postnatal.*

*See Pediatric Hemostasis References in Coagulation Studies in Special Instructions.


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