Random Urine, N-Methylhistamine Build info

Synonyms

  • N-METHYLHISTAMINE, RANDOM URINE
  • NMHR
  • N-METHYLHISTAMINE, RANDOM UR
  • LAB11178

Short Name

N-METHYLHISTAMINE, RANDOM URINE

Procedure Master Number

LAB11178

Procedure ID

114736

Clinical Info

Monitoring therapeutic progress in conditions that are associated with secondary, localized, low-grade persistent, mast-cell proliferation and activation such as interstitial cystitis

Specimen Type

Container

Urine Cup

Collection Instructions

Specimen Type: Urine
Patient Preparation: Patient must not be taking monoamine oxidase inhibitors (MAOIs) or aminoguanidine as these medications increase N-methylhistamine (NMH) levels.
Supplies: Aliquot Tube, 5 mL (T465)
Container/Tube: Plastic vial, 5-mL
Specimen Volume: 5 mL
Collection Instructions:
1. Collect a random urine specimen within a few hours of symptom onset.
2. No preservative.
Specimen Minimum Volume: 3 mL
Specimen Stability Information:
Specimen TypeTemperatureTimeSpecial Container
UrineRefrigerated (preferred)28 days
 Frozen 28 days
 Ambient 14 days

Transport Instructions

Specimen Stability

Methodology

NMHR1: Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
CRETR: Enzymatic Colorimetric Assay

Days Performed

Tuesday, Thursday

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT

82542
82570

PDM

2059266

Results
Component Name Base Name Common Name External Name
CREATININE RANDOM URINE CREATU CREATININE RANDOM URINE Creatinine, Random Ur
N-METHYLHISTAMINE, RANDOM UR NMETHYLHIST N METHYLHISTAMINE, RANDOM UR N-Methylhistamine, Random Ur