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Immunoassay for Zinc in Serum or Plasma (24-Hour Average)

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

This test measures the amount of zinc, a mineral important for immune function and metabolism, in your blood over a 24-hour period.

Quick summary

["Zinc helps support your immune system and keeps your body functioning properly."]

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

Key facts at a glance

LOINC
10405-9
Short code
Inject VZIg Vol Patient
Synonyms
Inject VZIg Vol Patient
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
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 part of a broader evaluation for zinc deficiency or certain metabolic conditions.

What to Expect Before the Test

No special preparation is needed. You may have a blood draw, or if measuring 24-hour urine, you’ll collect a urine sample over 24 hours. Follow your provider’s instructions carefully.

What the Results Mean

Results help determine if your zinc levels are within a healthy range. Low levels might indicate poor absorption, dietary deficiencies, or certain medical conditions.

Common Causes of Abnormal Results

Low zinc levels may be linked to poor diet, chronic illnesses, or conditions affecting absorption in the gut. High levels could result from certain medications or genetic factors.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

Zinc Level (24-Hour)

Frequently asked questions

What does a low zinc level mean?
Low zinc levels may weaken your immune system, slow healing, or cause hair loss. It can also affect taste and smell. Your provider may suggest dietary changes, supplements, or further testing.
What does a high zinc level mean?
High zinc levels may indicate overuse of supplements, certain medications, or rare genetic disorders. It can sometimes cause nausea or copper deficiency over time.
How often should I get this test?
Your provider will decide based on your symptoms, medical history, and other test results. Follow-up may be needed if results are outside the expected range.
  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