<p>The <strong>5-Hydroxyindoleacetic Acid (5-HIAA) – 24-Hour Urine</strong> test measures the amount of <strong>5-HIAA</strong>, the primary breakdown product of <strong>serotonin</strong>, excreted in the urine over a 24-hour period. Serotonin is a neurotransmitter that helps regulate mood, digestion, and various other bodily functions.</p><p>This test is primarily used to help diagnose and monitor <strong>carcinoid tumors</strong>, a type of slow-growing neuroendocrine tumor that can produce excessive amounts of serotonin. Elevated urinary 5-HIAA levels may indicate increased serotonin production associated with these tumors.</p>
No special preparation unless your doctor advises otherwise. Follow lab instructions shared at booking.
Same Day
As per lab guidelines (Urine)
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Preparation, procedure, and report timing for 5-HYDROXY INDOLE ACETIC ACID (5-HIAA)-24Hrs Urine.
It depends on the test. Lipid profile, fasting blood sugar, and many packages require fasting. Each test page lists preparation instructions—please follow them carefully.
Report turnaround time depends on the test and laboratory. Typical pathology reports are ready within 6–48 hours; radiology reports may take longer. Check your booking or dashboard for updates.