Nokea
What do the arteries in the umbilical cord carry?
- A. Nutrients to the fetus from the placenta
- B. Oxygenated blood to perfuse the placenta
- C. Antibodies from the fetus to the mother
- D. Deoxygenated blood back to the placenta
Correct Answer: D
Rationale: The arteries of the umbilical cord are unique in that they carry deoxygenated blood back to the placenta.
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What is the cause of frequent urination in early pregnancy?
- A. Increased fluid intake
- B. The fetus's kidneys functioning
- C. Retention of fluid
- D. Increased circulating volume
Correct Answer: D
Rationale: Early in the pregnancy, the increase in circulating volume and the enlarging uterus placing pressure on the bladder cause urinary frequency.
What does the increase in circulating blood volume during pregnancy cause in the mother?
- A. Shortness of breath
- B. Frontal headaches
- C. Decreased white blood cell count
- D. Decreased hemoglobin
Correct Answer: D
Rationale: Maternal circulating volume increases 30% to 40%, causing a virtual decrease in hemoglobin.
A patient has been diagnosed with a tubal pregnancy. What is the typical outcome of a tubal pregnancy?
- A. The patient will carry the pregnancy to term and have a cesarean delivery.
- B. The patient will have to remain in bed for the remainder of the pregnancy.
- C. The patient will spontaneously abort this ectopic pregnancy.
- D. The patient will require surgery to remove the zygote.
Correct Answer: D
Rationale: Any pregnancy where implantation occurs outside the uterine cavity is called ectopic. Tubal pregnancies usually must be resolved by surgical removal of the zygote.
A woman entering the 22nd week of pregnancy complains that she has become unsightly because of chloasma. What should the nurse recommend to reduce the appearance of the chloasma?
- A. Use heavy makeup.
- B. Take extra doses of vitamin A.
- C. Avoid exposure to the sun.
- D. Reduce caffeine intake.
Correct Answer: C
Rationale: At week 22, skin pigment changes called chloasma are found. Avoiding exposure to the sun will reduce the pigmentation.
Where does implantation of the fertilized ovum usually occur?
- A. Lower uterine wall
- B. Side of the uterus
- C. Fundus of the uterus
- D. Body of the uterus
Correct Answer: C
Rationale: Implantation usually occurs in the fundus of the uterus.