Correct Answer: B

Rationale: An allergy to shrimp is a contraindication for a myelogram because the contrast dye used in the procedure contains iodine, which can trigger allergic reactions in individuals allergic to shellfish. Choices A, C, and D are not contraindications for a myelogram. Inability to lie still for an extended period, claustrophobia, or a previous headache after a spinal tap are concerns that can be managed during the procedure but do not necessarily prevent the test from being performed.

Correct Answer: A

Rationale: The correct answer is A because limiting high-sodium foods is essential in managing hypertension and preventing complications. High sodium intake can lead to increased blood pressure levels. Choice B is important too, but solely relying on medications without lifestyle modifications may not be as effective in controlling hypertension. Choice C is also crucial for monitoring progress, but without dietary changes, blood pressure control may be challenging. Choice D, limiting high-fat foods, is beneficial for overall health but is not as directly related to managing hypertension as limiting high-sodium foods.

Correct Answer: B

Rationale: Checking the client's gag reflex is the appropriate action in this scenario. It helps assess the client's ability to swallow safely without the risk of aspiration. Adding a thickening agent to the fluids (Choice A) may be considered later if swallowing difficulties persist. Feeding the client only solid foods (Choice C) can increase the risk of aspiration in this case, and increasing the rate of intravenous fluids (Choice D) does not address the swallowing concern.

Correct Answer: D

Rationale: In this scenario, the most appropriate nursing action is to continue to monitor the rate of drainage. Clamping the chest tube is not recommended as it can lead to a tension pneumothorax. Calling the surgeon immediately may not be necessary at this point unless the drainage rate significantly increases or other concerning symptoms develop. Preparing for a blood transfusion is premature without further assessment and monitoring of the client's condition. Monitoring the rate of drainage allows the nurse to assess for any potential complications and ensure that the drainage amount is within expected limits.

Correct Answer: B

Rationale: The correct answer is to assist the client to turn, deep breathe, and cough. This intervention helps to expand the lungs and prevent atelectasis in postoperative clients. Maintaining adequate hydration is important for overall health but is not the most effective intervention for preventing atelectasis. Ambulating the client within 12 hours is beneficial for preventing complications after surgery, but it may not be as directly effective in preventing atelectasis as turning, deep breathing, and coughing. Splinting the incision is important for postoperative care, but it does not specifically address the prevention of atelectasis.