Which of the following is a common sign of shock in patients?

Hypotension and tachycardia are indeed common signs of shock in patients. Shock represents a state of inadequate perfusion, which leads to insufficient oxygen delivery to tissues. When the body is in shock, it often responds with compensatory mechanisms aimed at preserving vital organ function.

Tachycardia, or an elevated heart rate, is a physiological response to maintain cardiac output and support circulation despite falling blood pressure. Hypotension, characterized by low blood pressure, occurs due to various reasons, including systemic vasodilation, reduced blood volume, or cardiogenic failure, all of which can contribute to diminished perfusion and the potential for organ failure.

In contrast, the other options do not accurately reflect the expected physiological responses in a state of shock. Hypertension and bradycardia suggest a different clinical scenario, possibly consistent with a reactive or compensatory state but not typical for shock. Flushed skin and elevated temperature may be indicative of infection or sepsis but are not classic signs of shock itself. Normal blood pressure and bradycardia could indicate health stability rather than shock, making these options less relevant for identifying shock in a patient.