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ALPH / CA1A - M
ALPHA-1-ANTITRYPSIN CLEARANCE, FECES AND SERUM

Test Code ALPH / CA1A - M 
Test ALPHA-1-ANTITRYPSIN CLEARANCE, FECES AND SERUM 
Methodology Nephelometry 
Description Useful for diagnosing protein-losing enteropathies. 
Specimen Both feces and serum are required for this test. Blood must be drawn during the stool collection period.

SERUM
Draw blood in either a plain, red-top tube or serum gel tube. Spin down and send 1.0 mL (minimum 0.5 mL) of serum FROZEN in plastic vial on dry ice.

STOOL
Stool specimen (24-hour). SEND ENTIRE COLLECTION FROZEN.
Minimum volume: 1.0 mL of homogenized stool.
See "Stool Collections."
NOTE: If no specimen is obtained in 24 hours, extend collection
to 48 - 72 hours and note time frame on request form. 

Reference Values Clearance: <= 27 mL/24 hours
Fecal alpha-1-antitrypsin concentration: < or = 54 mg/dL
Serum alpha-1-antitrypsin concentration: 100 - 190 mg/dL 
Analytic Time 1 Day 
Day(s) Test Set Up Monday through Saturday 
CPT Code(s) 82103  

Special Instructions