During stress, giving patients extra insulin does not always decrease their high blood glucose levels because
a. the ratio of glucagon to insulin is in-creased.
b. the extra insulin stimulates glucose pro-duction.
c. the number of insulin receptors on cells decreases.
d. high blood glucose levels help protect the body against infection.
A
Giving patients extra insulin does not always decrease high blood glucose levels in stressed pa-tients because the ratio of glucagon to insulin is increased. Insulin stimulates uptake of glucose by cells; it does not stimulate glucose production. Stress does not change the number of insulin receptors on cells. High blood glucose levels tend to increase risk of infection rather than pro-tecting the body against infection.
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