A 31-Year-Old Woman Believes That She May Be Pregnant

A 31-year-old woman believes that she may be pregnant.She took an over-the-counter (OTC) pregnancy test 1 week ago after missing her period;the test was positive.During her assessment interview,the nurse asks about the woman's last menstrual period and whether she is taking any medications.The client states that she takes medicine for epilepsy.She has been under considerable stress lately at work and has not been sleeping well.Her physical examination does not indicate that she is pregnant.She has an ultrasound scan,which confirms that she is not pregnant.What is the most likely cause of the false-positive pregnancy test result?

A) The pregnancy test was taken too early.
B) Anticonvulsant medications may cause the false-positive test result.
C) The woman has a fibroid tumor.
D) She has been under considerable stress and has a hormone imbalance.