Correct Answer: B

Rationale: The correct answer is B: Hydrogen peroxide. Hydrogen peroxide is commonly used to clean tracheostomy cannulas to prevent infection. Normal saline (choice A) is used for wound irrigation but not for cleaning inner cannulas of tracheostomy tubes. Iodine (choice C) and alcohol (choice D) are not recommended for cleaning tracheostomy cannulas as they can be too harsh and irritating to the delicate tissues of the airway.

Correct Answer: A

Rationale: The correct answer is A: Hypoventilation and lung disease. Respiratory acidosis occurs when there is an accumulation of CO2 in the body due to inadequate ventilation. Hypoventilation, which reduces the elimination of CO2, and lung diseases that impair gas exchange are the primary causes. Choice B is incorrect because hyperventilation, not hypoventilation, leads to respiratory alkalosis, not acidosis. Choice C is incorrect because increased oxygen saturation and tachypnea do not directly cause respiratory acidosis. Choice D is incorrect as dehydration and hypoxia do not typically lead to respiratory acidosis.

Correct Answer: A

Rationale: The correct nursing priority for a patient experiencing an asthma exacerbation is to administer a bronchodilator. Bronchodilators help in relieving bronchoconstriction and improving breathing. While encouraging deep breathing, providing oxygen therapy, and monitoring oxygen saturation are essential aspects of managing asthma exacerbation, the priority is to administer a bronchodilator to address the acute bronchoconstriction.

Correct Answer: A

Rationale: Monitoring urine output and ensuring proper catheter drainage are crucial aspects of managing a patient with an indwelling urinary catheter. This helps in assessing the patient's renal function, fluid balance, and the patency of the catheter. Administering antibiotics and changing the catheter regularly (Choice B) may not be necessary unless there is an infection present. While monitoring for signs of infection and providing catheter care (Choice C) are important, the primary focus should be on urine output and drainage. Providing a high-sodium diet and monitoring hydration (Choice D) are not directly related to managing an indwelling urinary catheter.

Correct Answer: C

Rationale: The correct answer is to administer naloxone (Narcan). The client's vital signs indicate opioid-induced respiratory depression, which is a potential side effect of morphine. Naloxone is used to reverse the effects of opioids, particularly to restore normal respiratory function. Administering oxygen alone (Choice B) may not address the underlying cause of respiratory depression. Allowing the client to sleep undisturbed (Choice A) is inappropriate when signs of respiratory depression are present. Epinephrine (Choice D) is not indicated in this situation and is not used to reverse opioid effects.