Zinc

Clinical Chemistry

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Description

Zinc is an essential trace element with a Reference Nutrient Intake of about 10mg/day. Most of the pool of body zinc is within muscle and bone with a small amount in blood in erythrocytes and bound to albumin. Homeostasis for zinc is achieved through sequestration and sloughing of intestinal cells. Zinc is a component of many enzymes eg. alkaline phosphatase and is involved in the modulation of gene transcription. Plasma zinc fluctuates throughout the day and with meals. Fasting can lead to an increase. Zinc deficiency may occur with: (1) a poor intake of zinc - dietary, malabsorption, TPN (2) increased renal and skin loss - ethanol, burns (3) drugs - oestrogen, chelation (4) catabolism - infection, malignancy, HIV.

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Indications

Suspected deficiency and replacement monitoring

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Sample Type

Trace elements tube (dark blue top)

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Reference Range

Reference ranges are provided on the report. Alternatively, please contact the laboratory for current ranges.

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Turnaround Time

Within 14 days

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Testing Frequency

Weekly

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