An adolescent boy is admitted to the emergency department (ED) following a bee sting. He arrives with a body rash and 30 minutes later he becomes short of breath. The nurse obtains vital signs with a blood pressure of 90/52 mm Hg, heart rate 130 beats/minute, and respiratory rate 40 breaths/minute. The client is exhibiting clinical manifestations of which type of immune reaction?

Choice A reason: Assessing body temperature monitors for infection but is not specific to vancomycin administration. Clostridium difficile causes fever, but oral vancomycin’s safety depends on renal function, as it is minimally absorbed but can accumulate in renal impairment, making temperature less critical before the first dose.

Choice B reason: Checking serum creatinine is essential, as vancomycin, even orally, can be absorbed in small amounts, risking nephrotoxicity in patients with renal impairment. Clostridium difficile treatment requires ensuring renal function is adequate to prevent drug accumulation, which could exacerbate kidney damage, making this the priority action.

Choice C reason: Measuring oxygen saturation assesses respiratory status, irrelevant to oral vancomycin for Clostridium difficile, which primarily affects the gut. While severe infections may cause systemic symptoms, oxygenation is not a direct concern for vancomycin’s safety or efficacy, making this choice inappropriate.

Choice D reason: Auscultating bowel sounds evaluates gastrointestinal motility, relevant to Clostridium difficile’s diarrheal effects but not vancomycin’s administration safety. Oral vancomycin targets gut bacteria, and bowel sounds do not indicate renal or systemic risks, making this less critical than renal function assessment.

Choice A reason: Pancreatitis is indicated by elevated amylase and lipase, abdominal pain radiating to the back, vomiting, and fever. Cholecystectomy can trigger pancreatic inflammation due to bile duct manipulation or gallstone migration, causing enzyme leakage, making this the condition to observe for based on the findings.

Choice B reason: Peritonitis causes diffuse abdominal pain and fever but not typically elevated pancreatic enzymes. Post-cholecystectomy, localized pain and specific amylase/lipase elevation point to pancreatitis, not peritoneal infection, making this condition less likely based on the client’s presentation.

Choice C reason: Cholangitis involves bile duct infection, causing jaundice and right-upper-quadrant pain, but not elevated amylase/lipase. The client’s pancreatic enzyme elevation and back-radiating pain align with pancreatitis, not bile duct inflammation, making this condition incorrect for the observed findings.

Choice D reason: Ileus causes vomiting and abdominal distension but not elevated pancreatic enzymes or back-radiating pain. Pancreatitis better explains the client’s enzyme levels, pain pattern, and fever post-cholecystectomy, as ileus lacks specific pancreatic involvement, making this condition unlikely.