In the early stages of shock, which physiologic change is commonly observed?

• A. Tachycardia
• B. Bradypnea
• C. Hypotension
• D. Warm flushed skin

Answer: (A)

In the early stages of shock, the body mounts a rapid compensatory response to preserve perfusion. The quickest and most noticeable change is an increased heart rate as the sympathetic nervous system releases catecholamines to boost cardiac output despite reduced circulating volume. This tachycardia helps maintain blood flow to vital organs even before blood pressure drops. You’ll often see respirations rise as well, not slow down, so bradypnea wouldn’t fit the early picture. Blood pressure may stay near normal at first because the body’s baroreceptor reflex and vasoconstriction help maintain it, with hypotension developing later as compensation fails. Skin tends to be cool and clammy from peripheral vasoconstriction, whereas warm flushed skin would suggest a different pattern of shock, such as distributive (septic) shock.