Walden Macnair is admitted to the hospital for the first time in his life. He is a 35-year-old male whose main symptom is abdominal pain, which started about 3 hours ago. He describes this pain as burning and related to eating. The patient's condition is stable. While taking his history, you learn that for the last three months he has been taking some medications due to his knee problems.

What type of medications is most likely responsible for causing such symptoms?

A. Nonsteroidal anti-inflammatory drugs (NSAIDs)
B. Steroids
C. There isn't enough data to determine that
D. Opioids
E. Antibiotics

a . Nonsteroidal antiinflammatory drugs (NSAIDs). NSAIDs are likely causing Walden Macnair's abdominal pain due to their known gastrointestinal side effects.

Walden Macnair, a 35-year-old male, was admitted to the hospital for the first time with symptoms of abdominal pain. The pain started about 3 hours ago, is described as burning, and is related to eating. His condition is stable, and his history reveals that he has been taking medications for knee problems over the last three months.

Given these details, the most likely type of medication responsible for causing his symptoms is nonsteroidal anti-inflammatory drugs (NSAIDs). NSAIDs can irritate the stomach lining, leading to symptoms such as burning abdominal pain related to eating.