5HIAA
(a.k.a 5-hydroxyindoleacetic acid, serotonin metabolites)
24 Hour Urine (acid Preservative)(Phone (82)4712 to order)
Test Code: 5HI
Tube type: Acid 24hr Urine
Special instructions
Sent away
to Bristol Royal Infirmary
Reference range
<4.0
Units
mmol/mol (5HIAA/Creatinine)
Turnaround Time
28
days
Department: Biochemistry
Clinical Application
Please note dietary and medicinal restrictions must be followed.
Please avoid the following foods for 3 days before, and during the collection: aubergine (egg plant), avocado,bananas, broccoli, hickory nuts, kiwi, pecans, pineapple (and juice), plantain, plums, tomatoes (including all tomato based foods/sauces), walnuts.
As well as the foods listed above, the following medications should also be avoided, if possible, for 3 days before, and during the collection: beta-blockers, cough mixture, diazepam, indomethacin, naproxen, paracetamol, mephenesin.
Other medications may also cause changes in 5-HIAA metabolism (e.g. SSRIs): please state current medications on the request form.
Links:
» Patient Instructions for 5HIAA Acidified 24hr Urine Collection