DAANCE Module 3 Practice Test 2025 – Comprehensive Exam Prep

The correct answer highlights that all listed anesthetic agents—Sublimaze, Methohexital, and Ketamine—are known to impact the body’s vital centers. Each of these agents has distinct effects that can influence respiratory and cardiovascular functions, which are crucial aspects of a patient's vital centers.

Sublimaze, a potent opioid, primarily acts on the central nervous system to control pain, but it can also lead to respiratory depression by reducing respiratory drive. This influence on the respiratory system can have significant implications during anesthesia.

Methohexital, a barbiturate, is used for induction of anesthesia and can also depress respiratory function. Like Sublimaze, its effect can alter the body’s physiological control over vital centers, particularly during the transition into or out of anesthesia.

Ketamine, an NMDA receptor antagonist, is unique in its mechanism as it produces dissociative anesthesia. It has effects on the cardiovascular system, potentially causing increased heart rate and blood pressure, but it can also lead to respiratory alterations. While it often preserves airway reflexes, its impact on the central nervous system means it can still influence vital functions.

Understanding the collective effects of these anesthetics on vital centers is essential for ensuring patient safety during anesthesia administration. Therefore