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Urine histamine, 24 hour urine required (see comment)
Test Synonyms:
Urine histamine
  NOTE: This test is performed at an external reference lab.
Core Lab
Inpatient Req:
Core Lab (#84927)  
Outpatient Req:
Clinical Labs (#83608)  
24 hour urine collected in PLAIN or ACID (6 N HCL added) container
Result Time:
Reference Interval:
Important Information:
Can only be performed on a 24 hour urine specimen. Insensitive, negative test does not rule out anaphylaxis. Alternative testing for N-methyl histamine (the major metabolite of histamine) can be considered and information is available here

Last Reviewed on 4/10/2005