Recognizing the Signs of Hypoglycemia

Endocrine · Question from the ATI RN Medical-Surgical 2023 Proctored Exam study set

Correct answer: C. Diaphoresis and shakiness

Why this is the answer

Diaphoresis (sweating), tremors, and irritability are classic adrenergic responses to low blood glucose — the body releases epinephrine to try to raise glucose, and sweating/shakiness are the visible result. Hot, dry skin (A) is a hyperglycemia/DKA finding tied to dehydration, not low glucose. Increased thirst (B) is polydipsia, a hallmark of hyperglycemia as the body tries to dilute excess blood sugar. Fruit-smelling breath (D) reflects ketone production during DKA, which occurs with hyperglycemia and insulin deficiency, not with hypoglycemia.

The bigger concept

Hypoglycemia and hyperglycemia can look superficially similar (both cause altered mental status), but their skin and breath findings point in opposite directions — cool/sweaty/shaky suggests low sugar, while hot/dry/thirsty/fruity suggests high sugar. This distinction matters because the treatments (fast-acting glucose vs. insulin) are opposite, so a quick glucose check before treating is essential.

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