
Alternative names, keywords |
5-Hydroxyindoleacetic acid, 5HIAA |
Samples required |
24 hour urine collection in acidified container. Instructions for 24h urine collection available here or on UHSussex public site. The following food/drugs must be restricted 2 days prior to and during collection of 24hr urine: walnuts, bananas, aubergine, avocados, pineapples, red plums, tomatoes. Download a printable list. |
Test indications |
Suspected carcinoid syndrome. |
Reference range |
< 47 µmol/24h |
Turnaround time |
Referral lab quotes turnaround time of 3 weeks, however additional time must be allowed for packing, dispatch and delivery of sample, and return and processing of results. |
Enquiries |
Biochemistry (Referrals) |