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Zinc in Blood (Mass Concentration)

Published: August 9, 2026Updated: August 16, 2026

This test measures the amount of zinc, a mineral essential for many bodily functions, in your blood.

Quick summary

["Zinc helps support immune function, wound healing, and metabolism—low levels may indicate health concerns."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
27106-4
Short code
Zinc Bld Ql
Synonyms
Zinc Bld Ql
Category
chemistry
Sample
whole-blood
Container
Lavender-top (EDTA)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
3 mL
Stability
Room temperature: 4h, Refrigerated: 24h
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

Why Is This Test Done?

Your healthcare provider may order this test to check for zinc deficiency, which can cause symptoms like fatigue, hair loss, or weakened immunity. It may also be used to monitor conditions like chronic illness, malabsorption disorders, or certain medications that affect zinc absorption.

What to Expect Before the Test

No special preparation is usually needed, but you may be asked to fast for 8–12 hours before the draw if your test involves fasting-related analysis. Bring any medications or supplements you take regularly to your appointment.

How the Test Works

A small blood sample is taken from a vein in your arm. The sample is sent to a lab, where zinc levels are measured using a specialized method (likely immunoassay or chemiluminescent immunoassay). Results are compared to standard reference ranges.

What the Results Mean

Results may be below, within, or above the reference range for zinc. Low levels could signal dietary deficiencies, gastrointestinal issues, or certain medical conditions. High levels may require further investigation, though they’re less common.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Zinc deficiency is linked to immune dysfunction, delayed wound healing, and neurological symptoms. Chronic low levels may also be associated with conditions like diabetes, Crohn’s disease, or alcoholism. High levels are rare but could indicate zinc toxicity or certain genetic disorders.

Short name

Zinc Level

Frequently asked questions

What causes low zinc levels?
Low zinc levels may result from poor diet (low intake of zinc-rich foods like meat, shellfish, or legumes), malabsorption (e.g., from celiac disease or pancreatitis), chronic illness, or certain medications that interfere with zinc absorption.
What symptoms might I experience if my zinc level is low?
Symptoms of zinc deficiency can include persistent fatigue, weakened immunity (frequent infections), hair loss, delayed wound healing, or skin changes. Some people may also experience loss of taste or smell.
How is zinc deficiency treated?
Treatment often involves dietary changes (e.g., zinc supplements if approved by your doctor) or adjusting medications that may deplete zinc. Lifestyle factors like managing chronic illness or improving gut health may also help restore levels.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy