Correct Answer: A

Rationale: The correct answer is to administer epinephrine. Epinephrine is the first-line treatment for anaphylactic shock as it helps reverse the severe allergic reaction by constricting blood vessels, increasing heart rate, and opening airways for improved breathing. Oxygen (Choice B) can be administered after epinephrine to support oxygenation. Corticosteroids (Choice C) may be used to prevent a biphasic reaction but are not the initial intervention. Antihistamines (Choice D) can help with itching and hives but do not address the life-threatening symptoms of anaphylaxis.

Correct Answer: C

Rationale: Auscultating crackles in the lung bases indicates fluid in the lungs, which can be a sign of aspiration pneumonia or pulmonary edema and requires immediate intervention to prevent respiratory distress. Aspirating 100 mL of gastric residual is within the acceptable range and does not require immediate intervention. A gastric pH of 4 is normal for gastric contents. Checking residual every 6 hours is a routine nursing intervention and does not indicate an urgent issue like pulmonary complications.

Correct Answer: D

Rationale: The correct answer is D. The client with chemotherapy and a low neutrophil count is at risk for infection and requires prompt intervention. Reporting this information to the provider is crucial to ensure appropriate monitoring and management to prevent potential complications. Choices A, B, and C do not indicate an immediate risk that requires immediate provider notification. A client reporting pain with pleurisy, a client draining fluid post-surgery, or a client with a heart rate of 98 per minute postoperative are not urgent enough to warrant immediate reporting compared to the client at risk for infection.

Correct Answer: A

Rationale: The most crucial nursing action for a patient post-surgery is to monitor vital signs. Monitoring vital signs helps in detecting early signs of complications such as hemorrhage, shock, or infection. While monitoring the surgical site is important for assessing wound healing and signs of infection, it is secondary to monitoring vital signs. Checking blood pressure and oxygen saturation are also important, but they are components of monitoring vital signs.

Correct Answer: B

Rationale: The correct answer is B: 'Heart rate of 88/min.' A heart rate of 88/min in a postoperative client can be an early sign of bleeding or other complications. It is essential to report this finding promptly to the healthcare provider for further evaluation and intervention. Choices A, C, and D are within normal ranges for a postoperative client and do not indicate immediate concern. A blood pressure of 118/76 mm Hg is normal, urinary output of 30 mL/hr may be adequate depending on the client's fluid status, and a hematocrit of 42% is within the acceptable range for a postoperative client. Therefore, they do not require immediate reporting.