Inform your doctor if you are on any medications, have any allergies or underlying medical conditions before your 5 Hiaa Blood Plasma. Your doctor will give specific instructions depending on your condition on how to prepare for 5 Hiaa Blood Plasma. Fasting is typically required before your test. Your doctor will ask you to stop certain foods and medications that alter 5HIAA 72 hrs before testing.
10 ml of plasma is collected when fasting for this test.
The normal result for 5 Hiaa Blood Plasma for 5 HIAA is 0 - 22np/ml for Unisex gender and for All age groups.