A 52-year-old woman completed clarithromycin-based triple therapy for H. pylori four weeks ago. She reports symptom resolution and asks if she is cured. What is the most appropriate next step?

A patient with RA has been taking hydroxychloroquine for several years. Which monitoring strategy is most important to prevent a serious long-term adverse effect?

A 29-year-old woman with moderate persistent asthma is taking an inhaled corticosteroid and is being considered for add-on salmeterol. She asks why she cannot simply use her albuterol inhaler more frequently. What best distinguishes salmeterol from albuterol in this context?

 A 13-month-old develops fever of 103°F and a rash 9 days after their Varicella vaccination. The caregiver is concerned about febrile seizures and long-term neurologic risk. Which of the following statements is true? 

A 64-year-old patient receiving myelosuppressive chemotherapy has a platelet count of 38,000/µL and reports bone pain from metastases. The provider is considering an NSAID adjunct. Which option is safest regarding platelet effects?

A 52-year-old man with severe asthma is transitioning from a 3-week course of oral prednisone to maintenance inhaled fluticasone. What is the most important safety consideration during this transition?

A 59-year-old patient with metastatic lung cancer reports constant pain rated 7/10 despite trying acetaminophen at home. Which initial pharmacologic approach is most appropriate?

A 37-year-old patient presents with fatigue and low-grade fever after recent travel. Serologic testing for hepatitis A reveals positive anti–HAV IgG and negative anti–HAV IgM. Which interpretation of these results is most appropriate?

A 71-year-old woman with stage 3 chronic kidney disease develops constipation while receiving opioid therapy after surgery. Which laxative should be avoided?

A 78-year-old man with GERD and a seizure disorder treated with phenytoin is taking cimetidine for heartburn. His phenytoin levels are now supratherapeutic despite no dose changes. What best explains this finding and the most appropriate management?