Under anesthesia, which condition could cause an increase in blood pressure?

• A. Hypotension
• B. Arrhythmia
• C. No change
• D. Increased blood pressure

Answer: (D)

Blood pressure during anesthesia rises when there is sympathetic activation due to insufficient anesthesia depth or painful stimulation. The body releases catecholamines, increasing heart rate, contractility, and vascular tone, which raises the blood pressure. The option that matches this scenario is the one describing an increase in blood pressure, since it reflects the hypertensive response you’d see with light anesthesia or nociception. The other states describe stable or reduced blood pressure, or a variable effect from an arrhythmia, which aren’t as directly linked to an acute rise in BP. In practice, a rise in blood pressure under anesthesia signals to assess depth of anesthesia and analgesia, and to rule out other causes like pain, hypoxia, hypercapnia, or equipment issues, then correct accordingly.