Correct Answer: B

Rationale: The correct answer is B because the absence of patellar and triceps reflexes indicates potential magnesium toxicity, requiring immediate intervention. Nausea and lethargy are common side effects of elevated magnesium levels and should be reported, but they are not as critical as the loss of deep tendon reflexes. Decreased breath sounds suggest the need for coughing and deep breathing to prevent atelectasis, which is important but not as urgent as addressing magnesium toxicity.

Correct Answer: A

Rationale: The patient's pH is below the normal range (7.35-7.45), and the HCO3 is also below the normal range (22-26 mEq/L), indicating an acidic environment, which is consistent with metabolic acidosis. The ABGs provided do not support respiratory acidosis or alkalosis, as the PaCO2 is within the normal range (35-45 mm Hg) despite the patient's deep, rapid respirations. Therefore, the correct interpretation is metabolic acidosis.

Correct Answer: A

Rationale: This is a medication error, and the first step in addressing it is to assess for any side effects of the medication on the patient. Some analgesics can cause respiratory depression, so it is crucial to monitor for vital sign changes or respiratory distress. Once the patient is stable, the next steps would include contacting the provider, documenting the response, and completing a medication error report. Choices B, C, and D are not the immediate priority when dealing with a medication error. While documenting the client's responses and completing a medication error report are important, assessing for side effects and ensuring patient safety come first.

Correct Answer: B

Rationale: The best response for the nurse is to inform the client that gradual tapering must be used to discontinue the medication. Abrupt cessation of antidepressants can lead to withdrawal symptoms or a recurrence of depressive symptoms. Choice A is not the best response as it does not address the need for a proper discontinuation plan. Choice C is not the best response as it focuses solely on the side effects and does not address the discontinuation process. Choice D is not the best response because while side effects may diminish over time, the focus here should be on the safe discontinuation of the medication to prevent adverse effects.

Correct Answer: A

Rationale: The correct answer is A: "Blood pressure is 90/40 mm Hg." A low blood pressure reading of 90/40 mm Hg indicates that the patient may be developing hypovolemic shock due to intravascular fluid loss from the burn injury. This finding is of utmost concern as it suggests systemic hypoperfusion, requiring immediate intervention to prevent complications. Choices B, C, and D also indicate signs of dehydration and the need to increase fluid intake; however, they are not as urgent as addressing the hypotension and potential shock presented in choice A.