Nokea
At what point in prenatal development do the lungs begin to produce surfactant?
- A. 17 weeks
- B. 20 weeks
- C. 25 weeks
- D. 30 weeks
Correct Answer: C
Rationale: During week 25, the alveoli begin to produce surfactant, which enables the alveoli to stay open for adequate lung oxygenation to occur.
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A nurse is caring for a laboring person and is monitoring for signs of fetal distress. Which finding is the most concerning in this situation?
- A. Late decelerations
- B. Bradycardia
- C. Tachycardia
- D. Variable decelerations
Correct Answer: A
Rationale: The correct answer is A: Late decelerations. Late decelerations indicate uteroplacental insufficiency, which can lead to fetal hypoxia and distress. This is the most concerning finding as it indicates a problem with oxygen delivery to the fetus. Bradycardia (B) and Tachycardia (C) can also be concerning, but late decelerations are more specific to fetal distress. Variable decelerations (D) are caused by cord compression and are concerning but not as indicative of fetal distress as late decelerations.
Which is equivalent to a 2 oz protein serving?
- A. 4 tbsp peanut butter
- B. 2 eggs
- C. 1 cup cooked lima beans
- D. 2 ounces mixed nuts
Correct Answer: B
Rationale: Two eggs are equivalent to a 2 oz protein serving, providing approximately 12 grams of protein.
The nurse is caring for a pregnant patient who is 36 weeks gestation and is concerned about preterm labor. Which of the following is a key sign of preterm labor?
- A. Regular contractions every 10 minutes or less
- B. Decreased fetal movement
- C. Mild cramping and back pain
- D. Increased energy levels and appetite
Correct Answer: A
Rationale: The correct answer is A: Regular contractions every 10 minutes or less. This is a key sign of preterm labor because regular contractions at this frequency could indicate the onset of labor before the full term. Contractions help to thin and dilate the cervix, leading to the birth of the baby. Decreased fetal movement (B) is a concerning sign but not a definitive indicator of preterm labor. Mild cramping and back pain (C) can be common in pregnancy and may not necessarily indicate preterm labor. Increased energy levels and appetite (D) are not typical signs of preterm labor, as the body usually shows signs of preparing for labor rather than increased energy levels.
A newly pregnant patient tells the nurse that she has irregular periods and is unsure of when she got pregnant. When is the best time for the nurse to schedule the patient’s ultrasound?
- A. Immediately
- B. In 2 weeks
- C. In 4 weeks
- D. In 6 weeks
Correct Answer: A
Rationale: An ultrasound at around 5-6 weeks after the last menstrual period is the most accurate time to determine gestational age.
Of what is the normal umbilical cord comprised?
- A. 1 artery carrying blood to the fetus and 1 vein carrying blood away from the fetus
- B. 1 artery carrying blood to the fetus and 2 veins carrying blood away from the fetus
- C. 2 arteries carrying blood away from the fetus and 1 vein carrying blood to the fetus
- D. 2 arteries carrying blood to the fetus and 2 veins carrying blood away from the fetus
Correct Answer: C
Rationale: The umbilical cord is comprised of 2 arteries carrying blood away from the fetus and 1 vein carrying blood to the fetus.