Specimen Requirements

Minimum of 10 mL of urine from a freshly voided urine in a screw-capped, sterile, plastic urine container. No preservative. Send specimen refrigerated. Maintain sterility and forward promptly. If there is a delay, aliquot the urine into a urine myoglobin transport tube within 1 hour of collection.  These tubes are available by contacting the Core Lab at RMH.

Urinary myoglobin is highly unstable unless alkalinized. Even with alkalinization, myoglobin deterioration is variable (approximate averages of 10% at 1 day, 20% at 3 days, and 30% at 7 days).

Note:  Follow instructions in “Urine Collection” in “Special Instructions.”