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24-Hour Urinary Zinc Mass Concentration

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

This test measures the total amount of zinc present in your urine over a full day. Zinc is an essential mineral that helps with immune function, wound healing, and other bodily processes.

Quick summary

["Understanding your daily zinc excretion can help identify potential deficiencies or unusual losses."]

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

Key facts at a glance

LOINC
21610-1
Short code
Zinc 24h Ur-mCnc
Synonyms
Zinc 24h 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 This Test Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms like frequent infections, slow wound healing, or unexplained fatigue. It could also be used to monitor conditions affecting zinc absorption or excretion, such as certain gastrointestinal disorders or kidney issues.

What to Expect Before the Test

No special preparation is needed for this test. You’ll collect your urine over a 24-hour period, starting and ending with your first morning urine. Store the collected urine in a refrigerator until you bring it to the lab.

How the Test Works

The lab analyzes the total zinc content in your urine sample using a specialized technique to determine the mass concentration over the 24-hour period.

What the Results Mean

Results provide a snapshot of how much zinc your body is excreting daily. Abnormal results may indicate conditions affecting zinc balance, but interpretation depends on clinical context and other factors.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Zinc Urine Profile

Frequently asked questions

What causes abnormal zinc levels in urine?
Abnormal zinc excretion in urine can result from conditions like chronic kidney disease, gastrointestinal disorders (e.g., celiac disease), or medications that affect zinc absorption. Lifestyle factors, such as poor diet or excessive alcohol use, may also play a role.
How long does it take to get results?
Test results are typically available within 1–3 business days, depending on lab processing times. Your healthcare provider will discuss the results with you during your follow-up visit.
Can I take supplements before this test?
Yes, you may continue taking zinc supplements as directed by your provider, but avoid excessive intake unless advised otherwise. Notify your healthcare team if you’re unsure about your supplement regimen.
  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