Nokea
The nurse is presenting a conference on gene dominance. What does the nurse report as the percentage of children carrying the dominant gene if one parent has a dominant gene and the other parent does not?
- A. 10%
- B. 25%
- C. 50%
- D. 100%
Correct Answer: C
Rationale: If one parent has a dominant trait and the other does not, then 50% of the children will inherit the trait.
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What organ does the ductus venosus shunt blood away from in fetal circulation?
- A. Liver
- B. Heart
- C. Lungs
- D. Kidneys
Correct Answer: A
Rationale: Fetal blood bypasses the liver through the ductus venosus by carrying blood directly to the inferior vena cava.
What are the functions of amniotic fluid? (Select all that apply.)
- A. Maintaining an even temperature
- B. Impeding excessive fetal movement
- C. Lubricating fetal skin
- D. Acting as a reservoir for nutrients
Correct Answer: A
Rationale: The amniotic fluid provides maintenance of even temperature; prevents amnion from adhering to fetal skin; allows buoyancy, symmetrical growth, and fetal movement; and acts as a cushion for the fetus. Although the fetus does swallow amniotic fluid, it has no nutritional value. Impeding excessive fetal movement and lubricating fetal skin are not primary functions of amniotic fluid.
A patient who is about to undergo a cesarean section for breech presentation without fetal distress asks her nurse what kind of anesthesia would be best for her. The nurse explains that which of the following is the preferred method of anesthesia in this nonemergent case?
- A. Spinal block
- B. Epidural block
- C. General anesthesia
- D. Intravenous sedation
Correct Answer: A
Rationale: The correct answer is A: Spinal block. Spinal anesthesia provides rapid onset and reliable anesthesia for cesarean section, making it the preferred method in nonemergent cases. It is safe for both the mother and the baby, as it does not cross the placental barrier. Spinal anesthesia also allows for better pain control postoperatively compared to other methods.
Choice B (Epidural block) may be a suitable option, but spinal anesthesia is preferred due to its faster onset and reliability.
Choice C (General anesthesia) is not the preferred method in nonemergent cases as it carries more risks compared to regional anesthesia and may have adverse effects on the baby.
Choice D (Intravenous sedation) is not appropriate for cesarean section as it does not provide adequate anesthesia for the procedure and may not be safe for the baby.
Which food is best for constipation relief?
- A. Pasta
- B. Rice
- C. Yogurt
- D. Celery
Correct Answer: D
Rationale: Celery is high in fiber and water, making it an effective choice for relieving constipation.
Which foods should the nurse suggest for improving folic acid intake?
- A. Potatoes and grapes
- B. Cranberries and squash
- C. Apples and corn
- D. Oranges and spinach
Correct Answer: D
Rationale: Oranges and spinach are rich in folic acid, which is crucial for preventing neural tube defects during pregnancy.