In fetal circulation, the ductus venosus diverts blood from which of the following organs?
Lungs
Heart
Kidney
Liver
The Correct Answer is D
A. The lungs are bypassed by the foramen ovale and ductus arteriosus in fetal circulation, not the ductus venosus.
B. The heart is a critical pumping organ, so no blood is diverted away from it in fetal circulation.
C. The kidneys process blood, but fetal blood bypasses the liver via the ductus venosus rather than the kidneys.
D. The ductus venosus allows oxygen-rich blood from the umbilical vein to bypass the liver and flow directly into the inferior vena cava, ensuring that well-oxygenated blood reaches vital fetal organs, such as the brain and heart, more efficiently.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. A ketogenic diet is not recommended during pregnancy, as carbohydrates are essential for fetal growth and energy. Adequate, balanced nutrition is key during pregnancy.
B. While water intake is important, pregnant clients are advised to drink 8–10 glasses of water daily to support increased blood volume and amniotic fluid. Six glasses would be insufficient.
C. An additional 1,000 calories per day is excessive for early pregnancy. During the first trimester, the calorie increase is minimal (approximately 150–200 calories), with more significant increases later in pregnancy.
D. Taking a prenatal vitamin daily ensures adequate intake of essential nutrients like folic acid and iron, which are critical for preventing neural tube defects and supporting maternal health.
Correct Answer is D
Explanation
A. Parity refers to the number of pregnancies carried to at least 20 weeks, not the total number of pregnancies. This client has had only one pregnancy (the twin birth) that reached this threshold.
B. Five refers to the total pregnancies, including those ending in miscarriage or abortion, which is not relevant to parity calculation.
C. Three does not reflect parity correctly since only one pregnancy was carried beyond 20 weeks.
Parity is documented as 1 because the twin pregnancy was carried to 36 weeks, while the others ended before 20 weeks. Twins or multiples count as one event for parity purposes.
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