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5-Hydroxyindoleacetic Acid (24h Urine)
Urine
5-Hydroxyindoleacetic Acid (24h Urine)
Also known as: 5-HIAA, Urine 5-HIAA
COMMON RANGE
0 – 15
mg/24h
0
16.5
A
ARUP Laboratories
Adult
↗
See all sources ↓
Reference ranges across 10+ sources
Adult reference ranges from 14 entries across 3 named sources, shown in mg/24h. Compare side-by-side.
SOURCE
SEX
AGE
RANGE
VISUAL
CITE
A
ARUP Laboratories
All
≥18y
0 – 15 mg/24h
↗
M
Mayo Clinic Laboratories
Female
18y–30y
≤6.3 mg/24h
↗
M
Mayo Clinic Laboratories
Female
30y–40y
≤6.5 mg/24h
↗
M
Mayo Clinic Laboratories
Female
40y–50y
≤7.4 mg/24h
↗
M
Mayo Clinic Laboratories
Female
50y–60y
≤8.3 mg/24h
↗
M
Mayo Clinic Laboratories
Female
60y–70y
≤8.4 mg/24h
↗
M
Mayo Clinic Laboratories
Female
≥70y
≤8.7 mg/24h
↗
M
Mayo Clinic Laboratories
Male
18y–30y
≤7.1 mg/24h
↗
M
Mayo Clinic Laboratories
Male
30y–40y
≤8.2 mg/24h
↗
M
Mayo Clinic Laboratories
Male
40y–50y
≤8.6 mg/24h
↗
M
Mayo Clinic Laboratories
Male
50y–60y
≤9.8 mg/24h
↗
M
Mayo Clinic Laboratories
Male
60y–70y
≤10 mg/24h
↗
M
Mayo Clinic Laboratories
Male
≥70y
≤10.2 mg/24h
↗
L
Labcorp
All
≥18y
0 – 15 mg/24h
↗
A
ARUP Laboratories
All · ≥18y
↗
0 – 15 mg/24h
M
Mayo Clinic Laboratories
Female · 18y–30y
↗
≤6.3 mg/24h
M
Mayo Clinic Laboratories
Female · 30y–40y
↗
≤6.5 mg/24h
M
Mayo Clinic Laboratories
Female · 40y–50y
↗
≤7.4 mg/24h
M
Mayo Clinic Laboratories
Female · 50y–60y
↗
≤8.3 mg/24h
M
Mayo Clinic Laboratories
Female · 60y–70y
↗
≤8.4 mg/24h
M
Mayo Clinic Laboratories
Female · ≥70y
↗
≤8.7 mg/24h
M
Mayo Clinic Laboratories
Male · 18y–30y
↗
≤7.1 mg/24h
M
Mayo Clinic Laboratories
Male · 30y–40y
↗
≤8.2 mg/24h
M
Mayo Clinic Laboratories
Male · 40y–50y
↗
≤8.6 mg/24h
M
Mayo Clinic Laboratories
Male · 50y–60y
↗
≤9.8 mg/24h
M
Mayo Clinic Laboratories
Male · 60y–70y
↗
≤10 mg/24h
M
Mayo Clinic Laboratories
Male · ≥70y
↗
≤10.2 mg/24h
L
Labcorp
All · ≥18y
↗
0 – 15 mg/24h
Related biomarkers
Often tested alongside 5-hydroxyindoleacetic acid (24h urine) or part of the same panel.
Urine pH
Urine
Urine Creatinine
Urine
Albumin-to-Creatinine Ratio (ACR)
Urine
Urine Specific Gravity
Urine
24h Urine Protein
Urine
24h Urine Calcium
Urine
Sources
A
ARUP Laboratories
M
Mayo Clinic Laboratories
L
Labcorp
Last updated 2026-05-02
This page aggregates publicly available reference data and clinical information from Mayo Clinic Laboratories and other sources. For general wellness information only — not medical advice. For diagnosis or treatment of any condition, talk to a qualified clinician.
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