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Why is the size and shape of the true pelvis more important than that of the false pelvis?
- A. The fetal head must be able to pass through the true pelvis.
- B. The true pelvis are the mother's measurements.
- C. The size of the false pelvis can change.
- D. The size of the true pelvis needs to be larger.
Correct Answer: A
Rationale: The size and shape of the true pelvis is more important than the false pelvis because the fetal head must be able to pass through for vaginal delivery to occur.
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What is the largest diameter of the fetal skull?
- A. Temporal
- B. Biparietal
- C. Lateral
- D. Frontal-occipital
Correct Answer: B
Rationale: The largest transverse diameter of the fetal skull is the biparietal measurement. If this is too large, the skull may not be able to enter the mother's pelvis.
The nurse is trying to differentiate true labor from false labor. Which of the following is correct regarding true labor?
- A. Discomfort of the contraction is in the fundus.
- B. Contractions do not follow a pattern.
- C. Contractions get stronger with ambulation.
- D. Contractions may stop with ambulation.
Correct Answer: C
Rationale: Contractions get stronger with ambulation in true labor. True labor is also marked by the onset of regular, rhythmic contractions.
During the second stage of labor how often should the nurse monitor the fetal heart rate?
- A. Every 5 minutes
- B. Every 15 minutes
- C. Every 30 minutes
- D. Every hour
Correct Answer: A
Rationale: Fetal heart rate should be assessed every 5 minutes during the second stage of labor.
After the delivery of a newborn what is the priority action of the nurse?
- A. Place the newborn on the right side.
- B. Cover the cord stump.
- C. Dry the infant immediately.
- D. Suction nose and mouth.
Correct Answer: D
Rationale: To prevent aspiration of amniotic fluid, the baby should be suctioned, then quickly dried to prevent hypothermia.
Using Leopold maneuvers to assess fetal position the nurse finds a soft rounded prominence at the level of the fundus a hard round prominence just above the symphysis pubis and nodulations on the left side of the uterus. How should the nurse document the fetal position?
- A. Right occiput anterior (ROA) vertex
- B. Left occiput anterior (LOA) vertex
- C. Right occiput transverse (ROT) breech
- D. Left occiput anterior (LOA) breech
Correct Answer: A
Rationale: Fetal position can be determined by the Leopold maneuver, which defines the relationship of the presenting part to the maternal pelvis quadrant. A soft rounded prominence at the level of the fundus, a hard round prominence just above the symphysis pubis, and nodulations on the left side of the uterus indicate a right occiput anterior (ROA), vertex positioning.