Q- A 25-year-old man is treated with chloramphenicol for typhoid fever. He later develops pallor, fatigue, and pancytopenia.
Which adverse effect best explains this presentation?
A- Dose-dependent reversible anemia
B- Folate deficiency
C- Irreversible aplastic anemia
D- Vitamin B12 deficiency
Q- A 60-year-old woman with hypertension is prescribed hydralazine.
Which adverse effect is most characteristically associated with this drug?
A- Gingival hyperplasia
B- Lupus-like syndrome
C- Pulmonary fibrosis
D- Tendon rupture
Q- A 19-year-old college student with meningitis is treated with ceftriaxone.
What is the mechanism of action of this drug?
A- Disruption of bacterial cell membrane
B- Inhibition of peptidoglycan cross-linking
C- Inhibition of protein synthesis at the 50S ribosomal subunit
D- Inhibition of transpeptidase enzymes (penicillin-binding proteins)