Mrs. Donna asked the nurse, when a fetal heart starts beating.
The nurse correctly responded by stating:
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a. 3 weeks AOG
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b. 8 weeks AOG
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c. 12 weeks AOG
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d. 20 weeks AOG
Situation: Mrs. Dela Cruz is in labor and is brought to the emergency room with a ruptured bag of water.
Answer: A.
Fetal heart starts beating at 3 weeks AOG. The heart at this time is consisting of two parallel tubes. By 8 weeks AOG, fetal heartbeat can be detected with an ultrasound. During 12 weeks AOG, the fetal heart rate is audible with a Doppler apparatus. A fetal heart beat is detectable with fetoscope by the 20th week AOG. (Source: Foundations of Maternal-Newborn Nursing by Murray and McKinney/Saunders 4th Ed.)
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