A Pregnant Client Tells the Nurse That Her Prescribed Medication

A pregnant client tells the nurse that her prescribed medication is not as effective as it was before her pregnancy. Which explanation by the nurse is best?

A) "This is because your blood volume has increased."
B) "This is because high estrogen levels increase stomach acid, which may decrease absorption."
C) " The medication may be expired; check the label."
D) "Tell me how you have been taking your medication."