A nurse is educating a client who has emphysema about the use of home-prescribed oxygen therapy. Which of the following statements by the client indicates understanding of the teaching?

A. Weak peripheral pulses are not a defining manifestation of hypertensive crisis. In severe hypertension, vascular resistance is increased, but peripheral pulses are not typically described as weak; instead, the key issue is dangerously elevated blood pressure and end-organ damage symptoms.

B. Pitting edema is not an acute manifestation of hypertensive crisis. Edema is more commonly associated with chronic conditions such as heart failure, renal disease, or fluid overload rather than the immediate presentation of a hypertensive emergency or urgency.

C. Headache is correct. A hypertensive crisis (severely elevated blood pressure, often ≥180/120 mm Hg) can cause symptoms of end-organ involvement, including severe headache due to increased intracranial pressure and cerebral vascular changes. Other expected manifestations may include visual changes, chest pain, or neurologic deficits.

D. Skin cool to touch is not a typical manifestation of hypertensive crisis. Cool, clammy skin is more commonly associated with shock states or decreased perfusion rather than severe hypertension, where perfusion pressure is elevated rather than reduced.

Rationale:

A. HSV-2 typically presents with painful vesicular lesions in the genital area, not a rash on the palms and soles. While disseminated HSV can occur in severe immunocompromised cases, it is not characterized by a typical palm and sole rash.

B. Secondary syphilis is classically associated with a diffuse, nonpruritic rash that often involves the palms of the hands and soles of the feet. This occurs due to systemic dissemination of Treponema pallidum. Other findings may include fever, lymphadenopathy, and mucous membrane lesions.

C. Gonorrhea typically presents with urethral or cervical discharge, dysuria, and pelvic or testicular pain. Disseminated gonococcal infection may cause arthritis and pustular skin lesions, but palm and sole involvement is not a hallmark feature.

D. Hepatitis B primarily affects the liver and may present with jaundice, fatigue, dark urine, and right upper quadrant discomfort. It is not associated with a characteristic rash on the palms and soles.