Test Code AMYU / AMSU-M 
Methodology Enzymatic Rate 
Description Useful for the assessment of acute rejection of bladder-drained pancreas transplants, and for the diagnoses of acute pancreatitis 
Specimen 5.0 mL (minimum: 1.0 mL) from a 2-hour urine collection. Send specimen in a plastic, 13-mL urine tube. Collect as follows:
A. The patient should have nothing by mouth except water between the hours of 6 p.m. and 10 a.m.
B. The bladder should be completely emptied at 8 a.m.; this urine is discarded.
C. An adequate urine specimen (> 100 mL) is ensured if the patient drinks three or more 8-oz glasses of water. Half of this amount should be ingested between 7:30 a.m. and 8 a.m.; the second half should be ingested at 8:30 a.m.
D. Collect all urine after 8 a.m.in container furnished.
E. The collection ends at 10 a.m. Include the 10 a.m. void in the collection container.
F. Measure and record the 2-hour volume.
G. Overlay urine with toluene (5 mL), and send aliquot specimen refrigerated. If no toluene is available, refrigerate specimen during collection, and send the aliquot specimen FROZEN.
H. Label specimen with collection date and time (exact start and completion times of the 2-hour collection) on the container label. 
Reference Values 3 - 26 U / h 
Analytic Time 1 Day 
Day(s) Test Set Up Monday through Sunday 
CPT Code(s) 82150