Diagnosing protein-losing enteropathies
Serum:
Blood must be drawn during the stool collection period.
Immediatley following collection, mix sample by gently inverting 5 times
Feces:
Serum:
Stool:
Serum:
Screw cap transfer vial/tube (Mayo T914)
Stool:
Stool collection kit (Mayo)
Red:
Serum
Frozen (preferred) - 28 days
Ambient - 28 days
Refrigerated - 28 days
Feces
Frozen (preferred) -14 days
Ambient - 14 days
Refrigerated - 14 days
Feces and serum should be shipped together. Specimens shipped separately may delay testing.
Nephelometry
Clearance: | ≤27 mL/24 hours |
Fecal alpha-1-antitrypsin concentration: | ≤54 mg/dL |
Serum alpha-1-antitrypsin concentration: | 100-190 mg/dL |