问题
单项选择题
The nurse instructs the client with diabetes mellitus that it is vital to recognize and treat hypoglycemia promptly based on which of the following knowledge
A．Hypoglycemia can cause brain damage.
B．Hypoglycemia necessitates increased insulin dosage.
C．The client may become dehydrated quickly.
D．The client may become confused, increasing the risk of injury.
答案
参考答案：A
解析：Hypoglycemia is dangerous because it can lead to permanent brain damage. Changes in cerebral function occur because the brain uses glucose for metabolism and is unable to use alternative sources of energy as well as glucose. Prompt treatment of hypoglycemia is essential to prevent cellular damage.