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🧪 What is Zinc (Blood)?

The Blood Zinc test measures the concentration of zinc, an essential trace mineral, in the blood. Zinc plays a crucial role in immune function, wound healing, DNA synthesis, and cell division.

❓ Why is the Test Done?

To:

Diagnose zinc deficiency or excess
Evaluate causes of immune dysfunction, delayed wound healing, or growth retardation
Monitor zinc status in patients with malnutrition, chronic illness, or malabsorption syndromes
Assess zinc toxicity in cases of over-supplementation

📊 Normal Range

Serum/Plasma Zinc Level	Reference Range
Adults	70 – 120 µg/dL (10.7 – 18.3 µmol/L)

Values may vary slightly depending on the laboratory.

📈 Interpretation of Results

Level	Clinical Significance
Low zinc	Zinc deficiency – immune dysfunction, growth issues, delayed wound healing
Normal zinc	Adequate zinc status
High zinc	Zinc toxicity – nausea, vomiting, copper deficiency risk

🧠 Associated Conditions

Condition	Details
Zinc deficiency	Malnutrition, malabsorption, chronic diarrhea
Chronic illnesses	Cancer, chronic liver/kidney disease
Excess supplementation	Toxicity, interference with copper absorption

🔄 Related / Follow-Up Tests

Serum copper – to assess balance with zinc
Complete blood count (CBC)
Nutritional assessment
Liver and kidney function tests

✅ Fasting Required?

Test	Fasting Required
Blood Zinc	❌ No

📝 Summary Table

Parameter	Details
What	Measures zinc concentration in blood
Why	Diagnose zinc deficiency or toxicity
Normal Range	70–120 µg/dL
Low Levels	Deficiency causing immune and growth problems
High Levels	Toxicity risk, copper deficiency
Associated Conditions	Malnutrition, chronic disease, over-supplementation
Follow-up Tests	Serum copper, CBC, nutritional assessment
Fasting Required	❌ No

ZINC (Blood)

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