Nokea
Ultrasonography can be used to estimate fetal age with crown-rump length (CRL) at approximately
- A. 6 to 8 weeks
- B. 7 to 12 weeks
- C. to 14 weeks
Correct Answer: B
Rationale: CRL measurements are most accurate between 7-12 weeks for estimating gestational age.
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Early decelerations with a normal fetal heart rate variability during labor have which of the following indications?
- A. they often indicate fetal congenital heart disease
- B. they do not indicate fetal hypoxia
- C. they may indicate fetal acidemia
Correct Answer: B
Rationale: Early decelerations are typically benign and related to head compression during contractions.
A gestational age assessment in the preterm newborn is likely to demonstrate
- A. hyperflexion of the upper and lower extremities in the infant's resting posture
- B. minimal breast bud tissue
- C. highly developed ear cartilage
Correct Answer: B
Rationale: Preterm infants often have underdeveloped physical features, including minimal breast bud tissue.
The primary purpose of the cremaster muscle is to:
- A. Eject milk into the lactiferous ducts of the breasts.
- B. Maintain the uterus in an anteflexed position.
- C. Keep the testes cooler than the rest of the body.
- D. Expel seminal fluids to nourish sperm at ejaculation.
Correct Answer: C
Rationale: The cremaster muscle adjusts the position of the testes to regulate their temperature for optimal sperm production.
If the postpartum uterine fundus is boggy on palpation, the nurse does which of the following?
- A. notifies the physician immediately
- B. massages the uterus until it feels firm
- C. re-examines the fundus in 15-20 minutes
Correct Answer: B
Rationale: Massaging a boggy fundus helps stimulate uterine contractions and prevent postpartum hemorrhage.
By about the sixth day after birth, over a 24-hour period, most infants urinate approximately
- A. 12 to 14 times
- B. 8 to 12 times
- C. 6 to 8 times
Correct Answer: B
Rationale: Frequent urination indicates adequate hydration and kidney function in newborns.