Which of the following agents is most appropriate in the treatment of a pregnant patient infected with Chlamydia?
A. tetracycline
B. penicillin
C. norfloxacin
D. erythromycin
E. doxycycline
Answer: D, erythromycin
Of these choices, erythromycin is best in a pregnant lady. PCN does not work for Chlamydia. Tetracyclines (A & E) should be avoided. Quinolones (norfloxacin) are contraindicated.