The nurse is providing care to a client whose last menstrual period was 6 weeks ago. The client believes she is pregnant. Which diagnostic test does the nurse anticipate in order to confirm the pregnancy?
A) Serum or urine human chorionic gonadotropin (hCG)
B) Fetal heartbeat by Doppler
C) Fetal heartbeat by fetoscope
D) Fetal movement
Answer: A
The most commonly used assay for pregnancy diagnosis is measuring the beta subunit of hCG in either urine or serum. hCG is detectable in more than 98% of clients by day 11 after conception. A fetal heartbeat is diagnostic for pregnancy and is detectable by Doppler around the 10th to 12th week of gestation and by fetoscope at about the 17th to 20th week. Fetal movement, another objective sign of pregnancy, is palpable around 20 weeks' gestation by a trained examiner; pregnant women may experience movement subjectively, called quickening, around this same time.
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