7 A 30-year-old woman at 30 weeks' gestation comes to the physician for her first prenatal examination. Physical examination shows a uterus consistent in size with a 30-week gestation. Her serum a-fetoprotein concentration is markedly increased when corrected for gestational age. Ultrasonography shows an anencephalic fetus. This defect most likely occurred during which of the following weeks of gestation? A) 1 to 2

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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A 30-year-old woman at 30 weeks' gestation comes to the physician for her first prenatal examination. Physical examination shows a uterus consistent in size with a 30-week gestation. Her serum α-fetoprotein concentration is markedly increased when corrected for gestational age. Ultrasonography shows an anencephalic fetus. This defect most likely occurred during which of the following weeks of gestation?

**Options:**
A) 1 to 2

B) 4 to 6

C) 8 to 10

D) 12 to 14

E) 16 to 18
Transcribed Image Text:**Question:** A 30-year-old woman at 30 weeks' gestation comes to the physician for her first prenatal examination. Physical examination shows a uterus consistent in size with a 30-week gestation. Her serum α-fetoprotein concentration is markedly increased when corrected for gestational age. Ultrasonography shows an anencephalic fetus. This defect most likely occurred during which of the following weeks of gestation? **Options:** A) 1 to 2 B) 4 to 6 C) 8 to 10 D) 12 to 14 E) 16 to 18
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