A nurse is caring for a patient who is receiving mechanical ventilation. The patient is showing signs of respiratory distress. What is the priority intervention?

Correct Answer: B

Rationale: The priority intervention in this scenario is to administer a nebulized bronchodilator (Choice B). This is because the patient is showing signs of respiratory distress, indicating a need for immediate bronchodilation to improve airway patency and ventilation. Checking the ventilator settings (Choice A) is important but not the priority when the patient is in distress. Administering bronchodilator therapy (Choice C) is similar to Choice B but is less specific and may not be as immediate. Administering insulin (Choice D) is not relevant in this situation since the patient's respiratory distress is the primary concern.

Correct Answer: B

Rationale: The correct answer is B: Administer morphine. Chest pain in a patient with a history of hypertension may indicate a myocardial infarction. Morphine is essential to alleviate pain and reduce myocardial oxygen demand. Nitroglycerin may lower blood pressure, which can be dangerous in a hypertensive patient. Aspirin is important for antiplatelet effects but not the immediate priority. Administering an antihypertensive is not necessary as the priority is managing chest pain.

Correct Answer: A

Rationale: The correct answer is A: Administer oxygen. In a patient with heart failure experiencing shortness of breath, the priority action is to ensure adequate oxygenation. Oxygen therapy helps to improve oxygen saturation levels, alleviate symptoms, and prevent further complications. Administering IV fluids (choice B) may worsen heart failure by increasing fluid overload. Administering pain relief (choice C) is not the priority when the patient is experiencing respiratory distress. Administering antiplatelet therapy (choice D) is not the immediate priority in this situation.

Correct Answer: B

Rationale: The correct answer is B: Administer IV fluids. The priority nursing intervention for a patient experiencing nausea while receiving chemotherapy is to administer IV fluids. Chemotherapy can cause dehydration due to vomiting and lack of oral intake, which can lead to electrolyte imbalances and compromised renal function. Administering IV fluids helps maintain hydration, support renal function, and prevent complications. Administering antiemetics (choice A) can help alleviate nausea but does not address the underlying issue of dehydration. Nebulized bronchodilators (choice C) are not indicated for nausea related to chemotherapy. Monitoring vital signs (choice D) is important but not the priority intervention in this case where hydration is the main concern.

Correct Answer: C

Rationale: The question implies a physical assessment technique (e.g., diaphragm excursion), where reduced excursion is common in COPD due to air trapping.