What medication is commonly used for reversing opioid-induced respiratory depression during cardiac procedures?

• A. Flumazenil
• B. Atropine
• C. Naloxone
• D. Adenosine

Answer: (C)

Naloxone is the medication commonly used for reversing opioid-induced respiratory depression, especially during cardiac procedures. Opioids can significantly depress the respiratory system, leading to dangerously low levels of oxygen in the blood. Naloxone is an opioid antagonist, which means it specifically blocks the effects of opioids at the receptor level. This action restores normal respiratory function by displacing the opioid from its receptors, thereby reversing the respiratory depression.

In the context of cardiac procedures, where maintaining proper respiratory function is crucial, the administration of naloxone can quickly restore a patient’s ability to breathe effectively after receiving opioid analgesics for pain management. It acts rapidly, making it a critical intervention in acute situations involving opioid overdose or excessive sedation.

Other medications listed, such as flumazenil, are not effective for opioids; flumazenil is a benzodiazepine antagonist. Atropine is primarily used to treat bradycardia by increasing heart rate and does not address respiratory depression. Adenosine is used in the management of certain types of supraventricular tachycardia and has no role in opioid reversal. Therefore, naloxone stands out as the appropriate choice for this clinical scenario.