Correct Answer: C

Rationale: Elevated blood pressure (140/90 mmHg) is a significant finding that the nurse should report immediately. Hypertension can be a severe side effect of corticosteroid therapy, especially in clients with preexisting conditions like rheumatoid arthritis. It requires prompt intervention to prevent complications such as cardiovascular events. The other options, while important to monitor, are not as critical as elevated blood pressure in this context. A blood glucose level of 180 mg/dL may indicate hyperglycemia, weight gain could be due to fluid retention, and increased joint pain is expected in a client with severe rheumatoid arthritis.

Correct Answer: D

Rationale: The correct answer is D: Toasted wheat bread and jelly. Dairy products decrease the effect of tetracycline, so the nurse should instruct the client to avoid them. Toast, which contains no dairy products, may help decrease gastrointestinal symptoms. Choices A, B, and C contain dairy products, which should be avoided when taking tetracycline.

Correct Answer: A

Rationale: Administering oxygen therapy as prescribed is the initial priority when managing an exacerbation of COPD. In COPD exacerbations, the primary concern is hypoxemia due to impaired gas exchange. Administering oxygen helps to improve oxygenation and prevent further complications. Elevating the head of the bed can aid in breathing comfort but is not the priority over ensuring adequate oxygen supply. Assessing the client's level of consciousness is important but comes after ensuring oxygenation. Obtaining a sputum culture is relevant for identifying pathogens but is not the immediate priority in addressing hypoxemia.

Correct Answer: D

Rationale: The correct action for the nurse to implement is to document the assessment data. In this scenario, the findings indicate that the partial rebreather mask is functioning correctly as the reservoir bag should not deflate completely during inspiration. Additionally, the client's respiratory rate of 14 breaths/minute falls within the normal range. There is no need to encourage the client to take deep breaths, as the respiratory rate is normal, and doing so may disrupt the client's breathing pattern. Removing the mask to deflate the bag or increasing the liter flow of oxygen are unnecessary actions based on the assessment findings.

Correct Answer: C

Rationale: The correct action the nurse should take first is to review the client's medication list for potential interactions. This step is crucial as it can help identify any medications that might be contributing to the elevated blood glucose levels. Checking the current blood glucose level (choice A) is important but not the first action to address the ongoing issue. Assessing the client's diet and medication adherence (choice B) is also important, but reviewing the medication list should be the initial step to rule out any drug-related causes. Obtaining a hemoglobin A1c level (choice D) is a valuable assessment but may not address the immediate need to identify potential medication interactions.