Correct Answer: C

Rationale: When administering enoxaparin for the prevention of DVT, the nurse should inject the medication into the lateral abdominal wall. This site is preferred for subcutaneous injections of enoxaparin to reduce the risk of bleeding or injury. Expelling air bubbles, massaging the injection site, or administering an NSAID for discomfort are not appropriate actions and could lead to complications or ineffective medication delivery.

Correct Answer: A

Rationale: The correct answer is A: Monitor INR. INR (International Normalized Ratio) is crucial to monitor in patients receiving warfarin therapy. INR measures the blood's ability to clot and is used to ensure that patients are within the therapeutic range for warfarin therapy. This is important to prevent both clotting disorders and bleeding complications. Monitoring potassium levels (choice B) is not directly related to warfarin therapy. Platelet count (choice C) and sodium levels (choice D) are important parameters but are not as critical to monitor specifically for patients on warfarin therapy.

Correct Answer: A

Rationale: The correct answer is to administer diuretics. Diuretics help reduce excess fluid in cases of fluid overload, making it the priority intervention. Administering additional IV fluids (choice B) would exacerbate the problem by adding more fluid. Providing oral fluids (choice C) is not the priority as the excess fluid needs to be removed first. Chest physiotherapy (choice D) is not the primary intervention for fluid overload.

Correct Answer: A

Rationale: The correct answer is to administer bronchodilators. During an acute asthma attack, bronchodilators like albuterol are crucial to help dilate the airways and improve breathing. Providing supplemental oxygen (Choice B) may be necessary but is not the priority intervention. Starting IV fluids (Choice C) and monitoring oxygen saturation (Choice D) are important aspects of care but are not the most critical interventions during an acute asthma attack.

Correct Answer: A

Rationale: The priority nursing action for a patient with respiratory distress is to administer oxygen. Oxygen therapy is crucial in improving oxygenation levels and relieving respiratory distress, making it the top priority intervention. Repositioning the patient, administering bronchodilators, or providing chest physiotherapy may be necessary interventions depending on the underlying cause, but ensuring adequate oxygen supply should take precedence in addressing respiratory distress.