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Alpha-1-Antitrypsin, clearance

Item Value
Approval req'd? No
Available Stat? No
Test code A1AC
Test group Alpha-1-Antitrypsin
Performed by Mayo
Sendout? Yes
Method Rate nephelometry
Container type Collect stool only in special 24 hour collection container white with Red cap available in clinical labs. Submit with Gold top
Amount to Collect Entire 24 hour stool output
2 mL blood (Gold top)
Sample type 24 hour Stool collection & serum
Preferred volume 1 mL serum
Min. Volume 0.2 mL serum
Processing notes Freeze stool and serum at -20C and ship both on dry ice to Mayo Medical Laboratories. IMPORTANT: If only an aliquot of the homogenized stool is sent to the reference laboratory, record and send the weight of the entire 24 hour collection and the volume of any distilled water added to homogenize the sample with the specimens. Order MAYO# 8835. Call MCS for pickup.
Units mL/24 h
Normal range
Clearance ≤ 27 mL/d
Synonyms A1AT; A1-AT; Alpha-1-PI; Alpha-1-Protease inhibiitor; A1-Antitrypsin; A1-PI; A1-Protease inhibitor
Turn around times Test performed Monday-F. Turnaround time: 3-4 days.
CPT coding 82103-90 x2.
LOINC code 18271-7
Last Updated 1/30/2012 8:15:37 AM
Entry Number 68
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