MyBloodTest
Biomarkers
Home
›
Biomarkers
›
Sodium (Na)
Blood
Sodium (Na)
COMMON RANGE
135 – 145
mEq/L
132
147
M
Mayo Clinic Laboratories
Adult
↗
See all sources ↓
CONVERT & COMPARE
mEq/L
=
140
mmol/L
Reference ranges across 10+ sources
Adult reference ranges from 11 entries across 11 trusted sources, shown in mEq/L. Compare side-by-side.
SOURCE
SEX
AGE
RANGE
VISUAL
CITE
A
ARUP Laboratories
All
≥18
136 – 145 mEq/L
↗
M
Mayo Clinic Laboratories
All
≥18
135 – 145 mEq/L
↗
Q
Quest Diagnostics
All
≥18
136 – 145 mEq/L
↗
L
Labcorp
All
≥18
136 – 145 mEq/L
↗
W
World Health Organization
All
≥18
136 – 145 mEq/L
↗
R
RCPA / AACB Australasian Harmonised Reference Intervals
All
≥18
135 – 145 mEq/L
↗
N
Nordic Reference Interval Project
All
≥18
137 – 145 mEq/L
↗
U
UK Pathology Harmony
All
≥18
133 – 146 mEq/L
J
JSCC / JAMT Japan
All
≥18
138 – 145 mEq/L
T
Turkey Nationwide Reference Intervals
All
≥18
136 – 145 mEq/L
#
NUMBER — Dutch Reference Value Study
All
≥18
136 – 145 mEq/L
↗
A
ARUP Laboratories
All · ≥18
↗
136 – 145 mEq/L
M
Mayo Clinic Laboratories
All · ≥18
↗
135 – 145 mEq/L
Q
Quest Diagnostics
All · ≥18
↗
136 – 145 mEq/L
L
Labcorp
All · ≥18
↗
136 – 145 mEq/L
W
World Health Organization
All · ≥18
↗
136 – 145 mEq/L
R
RCPA / AACB Australasian Harmonised Reference Intervals
All · ≥18
↗
135 – 145 mEq/L
N
Nordic Reference Interval Project
All · ≥18
↗
137 – 145 mEq/L
U
UK Pathology Harmony
All · ≥18
133 – 146 mEq/L
J
JSCC / JAMT Japan
All · ≥18
138 – 145 mEq/L
T
Turkey Nationwide Reference Intervals
All · ≥18
136 – 145 mEq/L
#
NUMBER — Dutch Reference Value Study
All · ≥18
↗
136 – 145 mEq/L
Related biomarkers
Often tested alongside sodium (na) or part of the same panel.
White Blood Cells (WBC)
Blood
Red Blood Cells (RBC)
Blood
Hemoglobin (Hgb)
Blood
Hematocrit (Hct)
Blood
Platelets (PLT)
Blood
Mean Corpuscular Volume (MCV)
Blood
Sources
A
ARUP Laboratories
M
Mayo Clinic Laboratories
Q
Quest Diagnostics
L
Labcorp
W
World Health Organization
R
RCPA / AACB Australasian Harmonised Reference Intervals
N
Nordic Reference Interval Project
U
UK Pathology Harmony
J
JSCC / JAMT Japan
T
Turkey Nationwide Reference Intervals
#
NUMBER — Dutch Reference Value Study
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.
Track your sodium (na) in MyBloodTest
Instant lab report scanning, personalized wellness insights, automatic wellness app syncing. All in one app.
Download on the
App Store
Get it on
Google Play
Free · iOS · Android · Web
MyBloodTest
© 2026 Joelis labs, UAB. All rights reserved.