Correct Answer: B

Rationale: The correct answer is B: Monitor the client's blood glucose level every 6 hours. When a client is on TPN, it is crucial to monitor their blood glucose levels frequently to prevent complications such as hyperglycemia or hypoglycemia. Weighing the client weekly to monitor for fluid retention (choice A) is important but not as critical as monitoring blood glucose levels. Changing the TPN tubing every 72 hours (choice C) is important for infection control but does not directly relate to the client's metabolic status. Flushing the TPN line with sterile water before and after administration (choice D) is not a standard practice and may introduce contaminants into the TPN solution.

Correct Answer: B

Rationale: The correct answer is B: 'Serum calcium level of 8.0 mg/dL.' A low serum calcium level indicates hypocalcemia, which is a potential complication of thyroidectomy that can lead to life-threatening consequences, such as tetany or laryngospasm. Therefore, it is crucial for the nurse to report this finding promptly to the provider for timely intervention. Choices A, C, and D are important assessments following a thyroidectomy but are not as critical as detecting and addressing hypocalcemia, which can have serious implications for the client's health.

Correct Answer: B

Rationale: The correct instruction for a client with GERD is to avoid drinking fluids with meals. This is because consuming fluids while eating can exacerbate reflux symptoms by increasing stomach distension and contributing to the reflux of stomach contents into the esophagus. Option A is incorrect as elevating the head of the bed can help prevent reflux during sleep, not while drinking fluids. Option C is incorrect as consuming three large meals a day can worsen GERD symptoms due to increased gastric distension. Option D is incorrect as lying down after eating can also worsen GERD symptoms by promoting the reflux of stomach contents into the esophagus.

Correct Answer: A

Rationale: The correct answer is to administer antihistamines as the initial intervention for a patient experiencing an allergic reaction. Antihistamines work to block the effects of histamine, a substance released during an allergic reaction, helping to relieve symptoms such as itching, swelling, and hives. Corticosteroids (Choice B) are sometimes used in severe cases to reduce inflammation, but they are not the first-line treatment for an allergic reaction. Administering oxygen (Choice C) may be necessary if the patient is having difficulty breathing, but it is not the first intervention. IV fluids (Choice D) are typically given for conditions like dehydration or shock, not as the primary intervention for an allergic reaction.

Correct Answer: A

Rationale: The most important nursing assessment for a patient with suspected deep vein thrombosis (DVT) is to check for leg pain. Leg pain is a cardinal symptom of DVT and is often the initial indicator of a blood clot. While assessing for warmth, swelling, and redness are also important in DVT evaluation, leg pain is the most crucial as it can prompt further diagnostic testing and interventions. Performing Homan's sign test is no longer recommended due to its low specificity and potential to dislodge a clot, causing complications. Monitoring for redness is important but may not always be present in DVT cases. Assessing for warmth and swelling is relevant but still secondary to the assessment of leg pain in suspected DVT cases.