Indications: | Fasting (3hrs) serum is collected and a further sample is taken 1 hour after an oral loading dose of 220mg of zinc sulphate. An increase in copper is usually found. A reduction in copper response to zinc is seen in copper deficiency and some patients with chronic fatigue syndrome. | Sample Requirements: | A special appointment at Biolab is required | Postal Samples Acceptable: | Yes | For further details please contact the laboratory at: lab@xxxxbiolab.co.uk
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