The patient with acute respiratory failure may require a bronchodilator if which of the following occurs?

Rationale:
A. The student preoxygenates the patient for 1 minute before suctioning is correct practice. Preoxygenation helps prevent hypoxemia during suctioning by increasing oxygen reserves.

B. The student puts on clean gloves and uses a sterile catheter to open suction is incorrect practice and requires intervention. While a sterile catheter is correctly used for open suctioning, the student must use sterile gloves, not clean (nonsterile) gloves, to maintain asepsis and reduce the risk of introducing infection into the airway. Using clean gloves violates sterile technique and increases the risk of ventilator-associated pneumonia or tracheostomy infection.

C. The student inserts the catheter about 5 inches into the tracheostomy tube is correct. The catheter should be inserted just past the end of the tube without forcing it, usually 4–6 inches, to reach the lower airway safely.

D. The student applies suction for 10 seconds while withdrawing the catheter is correct. Suction should be applied intermittently for 10–15 seconds while withdrawing the catheter to remove secretions effectively while minimizing hypoxia and trauma to the airway.

Rationale:

A. Flumazenil is a benzodiazepine antagonist used to reverse the effects of benzodiazepine overdose. It does not affect opioids and will not improve respiratory depression caused by opioid toxicity. Administering flumazenil to an opioid-overdosed patient is ineffective and unnecessary, and in some cases, could precipitate seizures in patients with chronic benzodiazepine use.

B. Ephedrine is a sympathomimetic agent used primarily to treat hypotension and bradycardia by stimulating adrenergic receptors. While it can temporarily increase heart rate and blood pressure, it does not reverse the central respiratory depression caused by opioid toxicity. Therefore, it is not an appropriate treatment for opioid overdose.

C. Naloxone is a pure opioid antagonist that competitively binds to opioid receptors in the central nervous system, effectively displacing opioids and rapidly reversing respiratory depression, sedation, and hypotension caused by opioid toxicity. It is considered the first-line treatment for opioid overdose. Naloxone can be administered intravenously (most rapid), intramuscularly, subcutaneously, or intranasally depending on the setting and urgency. In a patient with a respiratory rate of 6/min, administration of naloxone is urgent to prevent hypoxia, brain injury, or death. Nursing care includes continuous monitoring of respiratory and neurological status after administration, because the effects of naloxone may wear off before the opioid has cleared, potentially causing re-sedation and recurrent respiratory depression. Titration of small doses is often recommended to restore adequate ventilation without precipitating acute withdrawal, especially in chronic opioid users.

D. Protamine is an antidote for heparin overdose, neutralizing its anticoagulant effect. It has no effect on opioid toxicity and is irrelevant to the management of respiratory depression caused by opioids.