Preparation for 5-HIAA Testing

Last Modified: January 7, 2013

Share article


What are the "rules" to prepare for a 5-HIAA urine test? Foods you can't eat, etc. And do these also apply to the blood test?


Ginna Deitrick, CRNP, MSN, Nurse Practitioner for Interventional Radiology at Penn Medicine responds.

For 24 hour 5-HIAA we tell patients to avoid the following foods 5 days before completing the test: avocados, pineapples, bananas, kiwi fruit, plums, eggplants, walnuts, hickory nuts, pecans; and the following medications: Tylenol (Acetaminophen). There are a few other medications that may interfere with the results, but your MD/ NP will be able to advise further.

This question and answer was part of the OncoLink Brown Bag Chat Series. View the entire transcript from the Focus on Neuroendocrine Tumors Webchat.

I Wish You Knew

How cancer patients have changed my life

View More

Blogs and Web Chats

OncoLink Blogs give our readers a chance to react to and comment on key cancer news topics and provides a forum for OncoLink Experts and readers to share opinions and learn from each other.

OncoLink OncoPilot

Facing a new cancer diagnosis or changing the course of your current treatment? Let our cancer nurses help you through!

Learn More