A nurse is assessing a client who has diabetes insipidus (DI). Which of the following findings is a manifestation of this diagnosis?

Choice A reason: Hypertension is not a hallmark of diabetes insipidus, which causes hypovolemia from excessive water loss. DI leads to dilute urine and dehydration, often causing hypotension, not hypertension, as the body struggles to maintain vascular volume, making this choice incorrect. Choice B reason: Tachycardia is a manifestation of diabetes insipidus due to hypovolemia from excessive water loss via dilute urine. The heart rate increases to compensate for reduced blood volume, maintaining cardiac output in response to dehydration, making this the correct finding. Choice C reason: Hyperglycemia is associated with diabetes mellitus, not diabetes insipidus. DI involves deficient antidiuretic hormone, leading to water loss, not glucose metabolism issues. Blood sugar levels remain unaffected, making this choice incorrect for DI manifestations. Choice D reason: Bounding peripheral pulses are not typical in diabetes insipidus, where hypovolemia from water loss leads to weak pulses. Dehydration reduces vascular volume, causing thready pulses, not bounding ones, making this choice incorrect for the condition.