A 47-year-old immigrant from Japan with a long history of untreated gastric ulcers develops stomach cancer. One drug in his initial treatment regimen is 5-fluorouracil (5-FU) as well as ondansetron to control nausea. While receiving this drug, the patient develops redness and numbness on the palms of his hands and soles of his feet. How can this reaction be avoided?

A 47-year-old immigrant from Japan with a long history of untreated gastric ulcers develops stomach cancer. One drug in his initial treatment regimen is 5-fluorouracil (5-FU) as well as ondansetron to control nausea. While receiving this drug, the patient develops redness and numbness on the palms of his hands and soles of his feet. How can this reaction be avoided?

A 55-year-old woman with end-stage ovarian cancer with extensive carcinomatosis has chronic nausea and vomiting. She inquires about a marijuana derivative to help. She realizes that this is not considered an approved therapy. Should she elect to pursue this agent, she should be concerned about which of the following effects?

A 55-year-old man with multidrug-resistant methicillin-resistant Staphylococcus aureus is treated with intravenous linezolid for 40 days. He is currently hospitalized in the intensive care unit. Which of the following consultations should be ordered in this patient at this time?

A 6-year-old boy returns home from his last day of school before thanksgiving break. Over the break, he develops a cough, stuffy nose, headache, and fever. His mother administers a cough syrup containing guaifenesin. Which of the following effects is likely caused by guaifenesin?

An 83-year-old woman nursing home resident complains of trouble falling asleep at night. Her daughter also mentions that her mother's mood appears depressed, and the nursing home staff state that she is not eating well. Which of the following medications could best help this patient?