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N-Methylhistamine, 24-Hour Urine
Test CodeLAB3516
Alias/See Also
1232600029
CPT Codes
82542
Preferred Specimen
24 Hour Urine
Minimum Volume
All urine produced during that time.
Instructions
From a well-mixed 24-hour collection transfer 5 mL urine to ARUP standard transport tubes (Min: 2 mL). Test is not performed at ARUP; separate specimens must be submitted when multiple tests are ordered.
Collection duration and urine volume must be provided for testing. Total collection volume must be greater than 300 mL.
Collection duration and urine volume must be provided for testing. Total collection volume must be greater than 300 mL.
Transport Temperature
Refrigerated (5 mL urine)
Specimen Stability
Room Temperature: 2 weeks
Refrigerated: 28 days
Frozen: 28 days
Refrigerated: 28 days
Frozen: 28 days
Last Updated: September 8, 2026
