A 67-year-old woman with known peptic ulcer disease found at endoscopy to be on maintenance treatment with misoprostol at 125% of the recommended dose. The rationale behind this dose is to maximize which of the following?

A 67-year-old woman with known peptic ulcer disease found at endoscopy to be on maintenance treatment with misoprostol at 125% of the recommended dose. The rationale behind this dose is to maximize which of the following?

A 35-year-old man with nonseminomatous germ cell tumor of the testis and bulky lymphadenopathy undergoes orchiectomy followed by multiagent chemotherapy with high-dose methotrexate. His serum creatinine rises from 1.10 mg/dL at baseline to 3.50 mg/dL after 4 weeks of therapy. What is the most likely explanation for this finding?

A 64-year-old woman is hospitalized for COPD exacerbation. While in the hospital, she becomes constipated. She also takes metoprolol for hypertension and mirtazapine for depression. The physician gives her docusate. Which of the following adverse reactions is most likely to occur as a result of docusate administration in this patient?

A 19-year-old man cuts his hand while slicing a bagel. He sustains a 4-cm laceration of the palmar aspect of his hand. The wound will be sutured with absorbable sutures. Prior to beginning the procedure, the wound is injected with lidocaine containing 1:100,000 parts epinephrine. The rationale behind the use of epinephrine is which of the following?

A 58-year-old man with a long history of depression is evaluated for treatment by his primary care physician. The physician begins treatment with sertraline. The patient is concerned about the possibility of sexual dysfunction. Which of the following changes is possible?