[Hypomagnesemia and hypokalemia in the insulin hypoglycemia test]

In 17 children the insulin-hypoglycaemia-test was performed for the diagnostics of the hypophyseal growth hormone reserve and secretion. In the course of the insulin-hypoglycaemia test in 47% of the test persons hypomagnesaemias lower than 0.65 mmol/l and in all test persons hypopotassaemias lower than 4 mmol/l were measured. Besides hypoglycaemia and adrenergic contraregulation hypomagnesaemias and hypopotassaemias during the insulin-hypoglycaemia-test must be regarded as causal factors for cardiac risks and neuro-vegetative side-effects in the insulin-hypoglycaemia-test.