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Worcestershire Acute Hospitals NHS Trust
5-Hiaa Screen
CategoryClinical Biochemistry
Test information
Used in the investigation of carcinoid tumours Carcinoid syndrome associated with flushing of face, diarrhoea, a rapid heart rate and wheezing.  
Reference range
<75 umol/24h
Special requirements
24h acidified urine pH <4
Tube type
Acidified urine
TAT Inpatient
2 weeks
TAT GP/Outpatient
2 weeks
Referral lab
Dept of Clinical Chemistry, Hereford Hospital
Page last updated: 11 January 2022