A client at 28 weeks of pregnancy receives a new doxycycline prescription for uncomplicated acne. Which action should the nurse take?
1Administer the first dose and explain that pregnancy increases doxycycline clearance, reducing fetal exposure.
2Give the medication with an iron supplement to bind doxycycline and prevent placental transfer.
3Administer doxycycline and schedule fetal tooth imaging before the next prenatal appointment.
4Hold the dose and clarify the order because later-pregnancy doxycycline exposure can affect developing teeth and bone.✓ Correct answer
Explanation
Doxycycline and other tetracycline-class drugs can affect developing teeth and reversibly inhibit bone growth when given during the second and third trimesters. Because this client has a nonurgent condition for which other treatments can be considered, the nurse should hold the dose and clarify the prescription. Iron reduces doxycycline absorption but does not make fetal exposure safe, and fetal tooth imaging is not a preventive intervention.
Clinical reasoning Pregnancy risk must be weighed against the indication. Life-threatening infections can justify doxycycline after expert review, but uncomplicated acne does not create that same benefit-risk balance at 28 weeks.
Decision rule For a second- or third-trimester client with a nonurgent doxycycline order, pause administration and obtain a pregnancy-compatible treatment plan from the prescriber.
Tetracycline fetal effects — Potential tooth discoloration and reversible inhibition of bone growth from exposure during later pregnancy.
Prescription clarification — A safety pause used when a medication order conflicts with a major patient-specific risk and requires prescriber review.