An 18-year-old adolescent develops anorexia, polydipsia and polyuria, vomiting, and unexplained fevers. Laboratory evaluation demonstrates glucosuria, but normal blood sugar concentration, abnormally high urine pH in the presence of moderate serum hyperchloremic metabolic acidosis, and mild albuminuria with normal serum protein and albumin. Which of the following ingested agents is most likely to result in these symptoms?
- Outdated tetracycline
- Nonsteroidal anti-inflammatory drugs (NSAIDs)
- Sulfonamide antibiotics