Correct Answer: C

Rationale: In this scenario, the client is presenting with signs of respiratory distress, including absent breath sounds, dyspnea, and a low SaO2 level. The priority action should be to improve oxygenation by administering oxygen via a high-flow mask. This intervention aims to increase the oxygen supply to the client's lungs, helping to address the hypoxemia. Once oxygenation is optimized, further interventions, such as obtaining a chest X-ray, preparing for chest tube insertion, or initiating IV access, can be considered based on the client's condition and healthcare provider's orders.

Correct Answer: B

Rationale: When administering prednisone, a corticosteroid medication, to a client with COPD, the healthcare professional should be aware of potential adverse effects. Tachycardia is not a common adverse effect of prednisone use. The correct adverse effects to monitor for include hypokalemia, fluid retention, and gastrointestinal issues like black, tarry stools due to potential gastrointestinal bleeding. Therefore, the healthcare professional should not concentrate on tachycardia but should focus on the other listed adverse effects when administering prednisone to a client with COPD.

Correct Answer: B

Rationale: Vecuronium is a neuromuscular blocking agent that is used to facilitate ventilation by inducing muscle paralysis, which can help improve oxygenation in patients with ARDS. It does not treat infection, decrease inflammation, or reduce anxiety. Understanding the purpose of vecuronium administration is crucial for providing safe and effective care to patients with respiratory distress.

Correct Answer: B

Rationale: Postmenopausal status is not a significant risk factor for pulmonary embolism. Risk factors for pulmonary embolism include obesity (BMI of 30 or higher), immobility such as having a fractured femur, and conditions like chronic atrial fibrillation that increase the risk of blood clot formation. While postmenopausal status may be associated with other health risks, it is not directly linked to an increased risk of pulmonary embolism.

Correct Answer: A

Rationale: Severe acute respiratory distress syndrome (SARS) is caused by a virus, not bacteria, and antibiotics are ineffective against viral infections. Therefore, administering antibiotics would not be appropriate in the care plan for a client with SARS. The priority interventions for SARS include providing supplemental oxygen to improve oxygenation, administering antiviral medications to target the viral infection, and using bronchodilators to help with bronchospasm or airway constriction. Antibiotics are not indicated unless there is a secondary bacterial infection present.