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Zinc Mass Concentration (Serum or Plasma)

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

This test measures the amount of zinc in your blood, which is an essential mineral that plays a role in many bodily functions, including immune support and metabolism.

Quick summary

["Zinc helps your body stay healthy, but low levels may signal potential health concerns."]

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

Key facts at a glance

LOINC
5764-6
Short code
Zinc Ur-mCnc
Synonyms
Zinc Ur-mCnc
Category
chemistry
Sample
urine
Container
Sterile urine container
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
10 mL
Stability
Room temperature: 2h, Refrigerated: 24h, Frozen: 7d
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 a zinc test to check for deficiencies, especially if you have symptoms like frequent infections, hair loss, or poor wound healing. It can also be part of evaluating conditions like diabetes, alcoholism, or certain nutritional disorders.

What Does a Low or High Zinc Level Mean?

Low zinc levels might indicate poor absorption, chronic illness, or dietary deficiencies. High levels could be linked to certain medications or rare genetic conditions, though they’re less common.

How Is the Test Performed?

A blood sample is taken from a vein in your arm. The sample is then analyzed in a lab to measure zinc concentration using a specialized test method.

What Are Common Symptoms?

Symptoms of zinc deficiency may include weakened immunity, skin problems, taste changes, or delayed wound healing. Symptoms of excess zinc are rare but could include nausea or copper deficiency.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Zinc Level

Frequently asked questions

What causes low zinc levels in blood?
Low zinc levels can result from poor diet (low intake), digestive issues (like Crohn’s disease), chronic illnesses (like diabetes or kidney disease), or excessive alcohol use. Rarely, genetic disorders may also affect zinc absorption.
How long does it take to get results?
Results are typically available within 1–3 business days, depending on your lab. Your provider will discuss them with you during your follow-up visit.
Can I take zinc supplements if my level is low?
Only follow your healthcare provider’s advice on zinc supplements. They may recommend specific types or dosages based on your overall health and test results to avoid excess or interference with other nutrients.
  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