A nurse is providing teaching to a client who has a new diagnosis of type 2 diabetes mellitus. The nurse should recognize that the client understands the teaching when he identifies which of the following as manifestations of hypoglycemia? (Select all that apply.)

Choice A reason: Polydipsia, or excessive thirst, is a classic symptom of hyperglycemia, not hypoglycemia. It occurs because elevated blood glucose levels cause osmotic diuresis, leading to dehydration and increased thirst. Choice B reason: Blurred vision can occur during hypoglycemia because the brain and eyes are highly sensitive to low glucose levels. Inadequate glucose supply impairs neurological and visual function, leading to transient blurred vision. This is a correct manifestation. Choice C reason: Tachycardia is a common symptom of hypoglycemia due to activation of the sympathetic nervous system. When blood glucose drops, the body releases catecholamines (epinephrine and norepinephrine), which increase heart rate and cause palpitations. This is a correct manifestation. Choice D reason: Moist, clammy skin is a hallmark sign of hypoglycemia. The sympathetic nervous system stimulates sweating as part of the adrenergic response to low blood glucose. This is a correct manifestation. Choice E reason: Polyuria, or excessive urination, is a symptom of hyperglycemia, not hypoglycemia. It occurs because glucose in the urine draws water with it, leading to increased urine output. This is not associated with hypoglycemia.