N-Methylhistamine, 24Hr Urine
					Order Name
					
						N-METHYLHI 
					
					
Test Number: 3811100
Revision Date 03/03/2025
				
			Test Number: 3811100
Revision Date 03/03/2025
| Test Name | Methodology | LOINC Code | 
|---|---|---|
| 
									
										
											N-Methylhistamine Level Urine
										
									 | 
								
									Liquid Chromatography/Tandem Mass Spectrometry | 44340-8 | 
| 
									
										
											NMH Creatinine Urine
										
									 | 
								
									Liquid Chromatography/Tandem Mass Spectrometry | 2162-6 | 
| 
									
										
											Creatinine Urine
										
									 | 
								
									Liquid Chromatography/Tandem Mass Spectrometry | 20624-3 | 
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment | 
| Preferred | 5mL (3mL) | Urine, 24-hour | 24 hour Urine Container | Refrigerated | 
| Instructions |  Specimen Type: Plastic Urine Container Specimen Storage: Refrigerated Specimen Collection: 1. Collect urine for 24 hours. 2. No preservative. Special Instructions: Testing referred to Mayo Medical Laboratory ML#NMH24 Specimen Stability: Ambient: 14 days, Refrigerated : 28 days, Frozen: 28 days  | 
							|||
| GENERAL INFORMATION | |
|---|---|
| Expected TAT | 10 - 18 days | 
| Performing Labcorp Test Code | 830794 | 
| CPT Code(s) | 82542 | 
| Lab Section | Reference Lab |