Which sign best indicates the patient may be experiencing shock?

• A. Warm, dry skin with normal pulse.
• B. Hypertension with a strong pulse.
• C. Normal capillary refill time.
• D. Cool, clammy skin with tachycardia and altered mental status.

Answer: (D)

Recognizing shock relies on understanding how the body responds to inadequate tissue perfusion. When perfusion drops, the body tries to preserve blood flow to vital organs by increasing heart rate and constricting peripheral vessels. This creates a rapid pulse and cool, clammy skin as blood is shunted away from the skin. The brain and other organs may also show signs of reduced oxygen delivery, leading to altered mental status. So the combination of a cool, clammy skin with tachycardia and altered mental status best fits shock.

The other signs don’t fit as well: warm, dry skin with a normal pulse suggests adequate perfusion rather than shock; hypertension with a strong pulse points away from shock, which typically involves low blood pressure and a weaker pulse as it progresses; normal capillary refill time indicates perfused tissues, not the delayed refill seen with hypoperfusion.