What is the treatment of choice for confirmed diagnosis of chlamydia in a pregnant patient?

The treatment of choice for a confirmed diagnosis of chlamydia in a pregnant patient is azithromycin. This antibiotic is preferred due to its single-dose regimen, which is convenient for patients and supports adherence to the treatment. Azithromycin is effective against Chlamydia trachomatis and is safe to use during pregnancy, as it does not pose a risk to the developing fetus.

While options like doxycycline and clindamycin have proven effectiveness against chlamydia, they are not recommended during pregnancy. Doxycycline is contraindicated due to the potential for affecting fetal bone and teeth development, while clindamycin is not first-line treatment for chlamydia, even though it can be used in certain scenarios. Amoxicillin, while generally safe in pregnancy, is not the first-line treatment for chlamydia because it is less effective than azithromycin. Hence, azithromycin stands out as the preferred treatment in this context, ensuring both efficacy and safety for the mother and the unborn child.