Zinc is an essential trace element involved in numerous enzymatic reactions, immune function, wound healing, and growth.

The Serum Zinc test is used to assess zinc status in the body.

Clinical uses include:

Detecting zinc deficiency (common in malnutrition, chronic illness, or malabsorption).

Monitoring patients with parenteral nutrition or supplementation.

Evaluating immune dysfunction, delayed wound healing, growth retardation, or skin disorders.

Identifying zinc toxicity from excessive supplementation or occupational exposure.

The test is performed using a serum sample.

Analyte: Zinc concentration in blood serum.

Normal Range: ~70 – 120 µg/dL (varies slightly by lab).

Low Levels: May indicate malnutrition, chronic diarrhea, liver disease, kidney disease, or malabsorption syndromes.

High Levels: May result from excessive supplementation, occupational exposure, or poisoning.

Clinical Use:

Detects zinc deficiency or toxicity.

Monitors nutritional therapy and supplementation.

Supports diagnosis of systemic conditions affecting zinc metabolism.