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CERNER / EPIC MNEMONIC / CPT CODE / DAYS PERFORMED / TURNAROUND TIME / SPECIAL INSTRUCTIONS / CONTAINER TYPE / SPECIMEN REQUIREMENTS / REJECTION CRITERIA / MINIMUM VOLUME / HANDLING INSTRUCTIONS / REFERENCE RANGE / TEST SYNONYM(S)

Ammonia, Plasma (View in report form.)

CERNER / EPIC MNEMONIC: NH3
CPT CODE: 82140
DAYS PERFORMED: Daily, 24 hours
TURNAROUND TIME: 1 hour
SPECIAL INSTRUCTIONS: Caution: Blood ammonia increases rapidly at room temperature. When specimens are collected at a remote site, results may be elevated due to delay in testing.  This test cannot be added onto an existing sample.
CONTAINER TYPE: Green top (heparin) tube or lavender top (EDTA) tube
SPECIMEN REQUIREMENTS: Blood (plasma)
REJECTION CRITERIA: Specimen not delivered on ice immediately after collection.
MINIMUM VOLUME: 0.4 mL blood (0.2 mL plasma)
HANDLING INSTRUCTIONS: Specimen must be placed on ice and transported to the laboratory immediately after collection.
REFERENCE RANGE: Male: 65-107 µg/dL; female: 58-94 µg/dL
TEST SYNONYM(S):Blood Ammonia, Blood NH3; NH3; NH4

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