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Immunoglobulin A (IgA)
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Immunoglobulin A (IgA)
COMMON RANGE
61 – 356
mg/dL
0
440
M
Mayo Clinic Laboratories
Adult
↗
See all sources ↓
CONVERT & COMPARE
mg/dL
=
2.09
g/L
Reference ranges across 10+ sources
Adult reference ranges from 4 entries across 4 trusted sources, shown in mg/dL. Compare side-by-side.
SOURCE
SEX
AGE
RANGE
VISUAL
CITE
A
ARUP Laboratories
All
≥18
70 – 400 mg/dL
↗
M
Mayo Clinic Laboratories
All
≥18
61 – 356 mg/dL
↗
Q
Quest Diagnostics
All
≥18
70 – 400 mg/dL
↗
L
Labcorp
All
≥18
61 – 360 mg/dL
↗
A
ARUP Laboratories
All · ≥18
↗
70 – 400 mg/dL
M
Mayo Clinic Laboratories
All · ≥18
↗
61 – 356 mg/dL
Q
Quest Diagnostics
All · ≥18
↗
70 – 400 mg/dL
L
Labcorp
All · ≥18
↗
61 – 360 mg/dL
Ages 0–17 (CALIPER)
PEDIATRIC
5 age- and sex-stratified entries from the Canadian Laboratory Initiative on Pediatric Reference Intervals.
SOURCE
SEX
AGE
RANGE
VISUAL
CITE
C
CALIPER — Canadian Pediatric Reference Intervals
All
0–1
1 – 29 mg/dL
↗
C
CALIPER — Canadian Pediatric Reference Intervals
All
1–3
4 – 90 mg/dL
↗
C
CALIPER — Canadian Pediatric Reference Intervals
All
3–6
26 – 147 mg/dL
↗
C
CALIPER — Canadian Pediatric Reference Intervals
All
6–14
47 – 221 mg/dL
↗
C
CALIPER — Canadian Pediatric Reference Intervals
All
14–19
53 – 287 mg/dL
↗
C
CALIPER — Canadian Pediatric Reference Intervals
All · 0–1
↗
1 – 29 mg/dL
C
CALIPER — Canadian Pediatric Reference Intervals
All · 1–3
↗
4 – 90 mg/dL
C
CALIPER — Canadian Pediatric Reference Intervals
All · 3–6
↗
26 – 147 mg/dL
C
CALIPER — Canadian Pediatric Reference Intervals
All · 6–14
↗
47 – 221 mg/dL
C
CALIPER — Canadian Pediatric Reference Intervals
All · 14–19
↗
53 – 287 mg/dL
Related biomarkers
Often tested alongside immunoglobulin a (iga) or part of the same panel.
Lead (Pb)
Other
Mercury (Hg)
Other
Arsenic (As)
Other
Prostate Specific Antigen (PSA)
Other
Free PSA
Other
CA-125
Other
Sources
A
ARUP Laboratories
M
Mayo Clinic Laboratories
Q
Quest Diagnostics
L
Labcorp
C
CALIPER — Canadian Pediatric Reference Intervals
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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