HIAA (5-)
(5-hydroxyindole acetic acid)
Material: | 10 ml of a 24 h urine (mix thoroughly before collection). The urine should be kept at 4°C. Please state the volume of the 24 h sample on the request form. |
Methods: | Hochleistungsflüssigkeitschromatographie (HPLC) → Hochleistungsflüssigkeitschromatographie (HPLC) | Reference range | < 15 mg/d |
Indication | Screening for carcinoid tumor. Elevated HIAA-levels above 15 mg/d have a high specificity for a carcinoid tumor. |
Please note | At least 2 days prior to urine collection the patient should stop taking the following medicines and food stuffs: To avoid false positve results: medicines: acetaminophen, coffeine, coumarin, fluorouracil, Lugol solution, melphalan, mephenesin, methamphetamine, methocarbamol, nicotine, paracetamol, phenacetin, phenobarbital, phentolamine. food stuffs: bananas, walnuts, tomatoes, pineaple, redcurrants, blackcurrants, plums, gooseberries, mirabelles, melon, avocados, aubergines, kiwi. To avoid false negative results: medicines: acetyl acetic acid, chlorpromazine, corticotropine, heparin, imipramine, isoniazide, methenamine, methyl dopa, phenothiazine, promethazine, levo dopa, streptozocine. |
Accredited | ja |
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