Which of the following would be typical of a fetus at 20 weeks? Select all that apply
1. The fetus has a body weight of 435–465 g.
2. The fetus actively sucks and swallows amniotic fluid.
3. The kidneys begin to produce urine.
4. Nipples appear over the mammary glands.
5. Lanugo covers the entire body.
Correct
1; 2; 4; 5
Rationale:
1. A fetus at 20 weeks has a body weight of 435–465 g, can actively suck and swallow amniotic fluid, has nipples that appear over the mammary glands, and has lanugo that covers the entire body.
2. A fetus at 20 weeks has a body weight of 435–465 g, can actively suck and swallow amniotic fluid, has nipples that appear over the mammary glands, and has lanugo that covers the entire body.
3. Kidneys begin to produce urine between 9 and 12 weeks' gestation.
4. A fetus at 20 weeks has a body weight of 435–465 g, can actively suck and swallow amniotic fluid, has nipples that appear over the mammary glands, and has lanugo that covers the entire body.
5. A fetus at 20 weeks has a body weight of 435–465 g, can actively suck and swallow amniotic fluid, has nipples that appear over the mammary glands, and has lanugo that covers the entire body.
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