pharmacology

Q- A 70-year-old man with atrial fibrillation is prescribed warfarin. He is advised to avoid consuming large amounts of leafy green vegetables. What is the reason for this recommendation? A- They decrease the anticoagulant effect B- They increase bleeding risk C. They increase liver enzyme activity D. They reduce drug absorption   Q- A 28-year-old … Read more

Q- A patient is prepared for major surgery. Administration of which one of the following skeletal muscle relaxants may cause hypotension, bronchospasm, and increased bronchial and salivary secretions? A- Atracurium B- Dantrolene C- Tubocurarine D- Vecuronium   Q- A female infant is diagnosed with Turner syndrome. Which one of the following long-term hormone replacement therapies … Read more

Q- A child is brought to the emergency room because he accidentally ingested a large amount of rat poison. His vital signs are within normal limits, and his physical examination is unremarkable. His lab tests come back normal except for an elevated prothrombin time. Which of the following is the most effective treatment? A- Atropine … Read more

  Q- Which one of the following medications is contraindicated in pregnancy due to the risk of fetal tooth discoloration? A- Amoxicillin B- Cephalexin C- Erythromycin D- Tetracycline   Q- Which one of the following clinical trials primarily evaluates drug safety? A- Phase I B- Phase II C- Phase III D- Phase IV   Q- … Read more

  Q- Which of the following medications has the narrowest margin of safety due to a small difference between its therapeutic and toxic doses? A- Alprazolam B- Amantadine C- Lithium D- Simvastatin   Q- Which one of the following chemotherapeutic agents acts by binding to tubulin and disturbing microtubule polymerization? A- Cyclophosphamide B- Doxorubicin C- … Read more