Test Code UHIAAQ 5-HIAA Quantitative, Urine
Patient Instructions
Avoid bananas, avocados, plums, eggplant, tomatoes, avocados plums, eggplant, tomatoes, plantain, pineapple, walnuts, and interfering drugs for a 72 hour period prior to and during collection. Foods and medications associated with altered urinary HIAA results: Decreased HIAA: Aspirin, chlorpromazine (Thorazine), corticotropin, dihydroxyphenylacetic acid, alcohol, gentisic acid, homogentisic acid, hydrazine derivatives, imipramine (Tofranil ), <isocarboxazid (Marplan), keto acids, levodopa, MAO inhibitors, methenamine methyldopa (Aldomet ), perchlorperazine, phenothiazines (Compazine ), promazine, promethazine (Mepergan ). Increased HIAA: Acetaminophen, acetanilide, caffeine, coumaric acid, diazepam (Valium ), ephedrine, fluorouracil glycerol guaiacolate (Guaifenesin), melphalan (Alkeran ), mephenesin, methamphetamine (Desoxyn), methocarbamol (Robaxin ), naproxen, nicotine, phenacetin,phenmetrazine, phenobarbital, phentolamine, rauwolfia, reserpine.
Collection Container
24 hour urine jug, kept refrigerated during and after collection
Specimen Required
24 hour urine
Refrigerate during and after collection period
Specimen Volume
Entire 24 hour collection
Minimum Specimen Volume
1 mL
Transport Temperature
Refrigerated
Turnaround Time
5-9 days
CPT Code
83497
EMR Interface Order Code
06750