Zinc (Zn) challenge Test (3 Hours)

Indications:

There are c.200 mammalian enzymes that require zinc as a co-factor and hence its deficiency has a multiplicity of effects in humans.
Only 1% of the total body zinc is in the plasma and there is poor exchange with other body tissues: plasma zinc is therefore not a good
index of total body status. Muscle zinc is the definitive measurement and leucoyte zinc correlates well with muscle zinc. In deficiency sweat zinc is a more reliable parameter than serum zinc, since the body removes zinc from the sweat to prevent its further loss. In children with zinc deficiency sweat zinc can be nearly zero.

Sample Requirements:

Navy Blue (EDTA) x 4 (Fasting, 1, 2 & 3hr)

Postal Samples Acceptable:

Yes