A client presents to the emergency department with a severe exacerbation of asthma. The nurse notes that the client is using accessory muscles to breathe and has an oxygen saturation of 86%. Which intervention should the nurse implement first?

Correct Answer: D

Rationale: The first priority in an acute asthma exacerbation is to administer oxygen to improve the client's oxygen saturation. In this scenario, the client has a low oxygen saturation level of 86%, indicating hypoxemia, which can be life-threatening. Administering oxygen therapy will help improve oxygenation and support vital organ function. Once the oxygen levels are stabilized, further interventions such as bronchodilators can be implemented. Placing the client in a high-Fowler's position may also be beneficial, but ensuring adequate oxygenation takes precedence in this critical situation. Obtaining a peak flow reading is important for asthma management but is not the first intervention needed in a client with severe hypoxemia.

Correct Answer: C

Rationale: A blood glucose level of 55 mg/dL indicates hypoglycemia, which should be treated with a fast-acting carbohydrate to quickly raise the blood sugar. Administering 15 grams of a fast-acting carbohydrate, such as glucose tablets or juice, is the appropriate initial intervention for hypoglycemia. Giving a glucagon injection is reserved for severe cases or when the client is unconscious. Encouraging the client to eat a high-protein snack is not appropriate for treating acute hypoglycemia, as it is a slower-acting form of glucose. Rechecking the blood glucose level is important but should occur after providing immediate treatment to raise the blood sugar level.

Correct Answer: A

Rationale: Corrected Rationale: Calcium channel blockers can cause bradycardia, so it is important for the client to monitor their heart rate regularly. This helps detect any significant changes in heart rate that may require medical attention. Choice B is incorrect because there is no need to avoid potassium-rich foods with calcium channel blockers. Choice C is incorrect as increasing fluid intake is not specifically related to calcium channel blockers. Choice D is incorrect as calcium channel blockers are usually taken with or without food, depending on the specific medication, but not specifically on an empty stomach.

Correct Answer: A

Rationale: The correct answer is A: 'Limit fluid intake to prevent fluid overload.' Clients with advanced chronic kidney disease are at risk of fluid retention, which can lead to complications like fluid overload and hypertension. Therefore, it is crucial to instruct the client to limit fluid intake. Choice B is incorrect because increasing sodium intake can exacerbate fluid retention and hypertension in clients with CKD. Choice C is incorrect as increasing potassium intake can be dangerous for clients with CKD who may already have elevated potassium levels. Choice D is incorrect because while protein intake may need to be adjusted for clients on hemodialysis, the priority in this case is managing fluid intake.

Correct Answer: B

Rationale: Prothrombin time (PT) is the correct laboratory value to monitor to assess the therapeutic effect of warfarin. Warfarin works by inhibiting clotting factors, and PT measures the time it takes for blood to clot. Monitoring PT helps ensure that the medication is working effectively to prevent clot formation without causing excessive bleeding. Platelet count (Choice A) is not specific to warfarin therapy and assesses the number of platelets in the blood. White blood cell count (Choice C) and hemoglobin level (Choice D) are not directly related to monitoring the therapeutic effect of warfarin.