Maternal Newborn Nursing Certification
Examination (RNC-MNN) Verified Questions,
Correct Answers, and Detailed Explanations for
Science Students||Already Graded A+
1. Which hormone is primarily responsible for uterine contractions
during labor?
A. Estrogen
B. Progesterone
C. Oxytocin
D. Prolactin
Answer: C
Oxytocin stimulates rhythmic uterine contractions and plays a key
role in labor progression.
2. A gravida 2 para 1 woman at 36 weeks reports sudden vaginal
bleeding with no pain. Which condition is most likely?
A. Abruptio placentae
B. Uterine rupture
C. Placenta previa
D. Vasa previa
Answer: C
Placenta previa typically presents with painless, bright red vaginal
bleeding in late pregnancy.
3. The most reliable indicator of adequate uteroplacental perfusion
during labor is:
,A. Maternal blood pressure
B. Frequency of contractions
C. Fetal heart rate pattern
D. Cervical dilation
Answer: C
Fetal heart rate patterns directly reflect fetal oxygenation and
uteroplacental perfusion.
4. Which assessment finding is expected in a normal newborn
during the first hour of life?
A. Heart rate 80 beats/min
B. Respiratory rate 20 breaths/min
C. Acrocyanosis
D. Persistent central cyanosis
Answer: C
Acrocyanosis is common and normal in newborns during the
immediate transition period.
5. A priority nursing intervention for a woman with preeclampsia is:
A. Encourage ambulation
B. Increase sodium intake
C. Monitor blood pressure and reflexes
D. Restrict protein intake
Answer: C
Monitoring blood pressure and deep tendon reflexes helps detect
worsening disease or magnesium toxicity.
6. Which finding is most concerning in a postpartum woman?
,A. Lochia rubra for 3 days
B. Uterine cramping during breastfeeding
C. Boggy uterus
D. Mild perineal discomfort
Answer: C
A boggy uterus indicates uterine atony, a leading cause of
postpartum hemorrhage.
7. Which fetal heart rate pattern is associated with umbilical cord
compression?
A. Early decelerations
B. Late decelerations
C. Variable decelerations
D. Accelerations
Answer: C
Variable decelerations are abrupt and irregular, commonly caused by
cord compression.
8. A newborn of a diabetic mother is at highest risk for:
A. Hypercalcemia
B. Hypoglycemia
C. Hypothermia
D. Polycythemia
Answer: B
Excess maternal glucose leads to fetal hyperinsulinemia, increasing
the risk of neonatal hypoglycemia.
9. Which medication is commonly used to prevent postpartum
hemorrhage?
, A. Magnesium sulfate
B. Terbutaline
C. Oxytocin
D. Nifedipine
Answer: C
Oxytocin promotes uterine contraction, reducing the risk of excessive
bleeding.
10. When teaching a client about signs of labor, the nurse should
explain that true labor contractions:
A. Stop with ambulation
B. Are irregular
C. Increase in intensity and frequency
D. Are relieved by rest
Answer: C
True labor contractions become progressively stronger, longer, and
closer together.
11. Which assessment finding suggests neonatal respiratory
distress?
A. Periodic breathing
B. Nasal flaring
C. Irregular respirations
D. Abdominal breathing
Answer: B
Nasal flaring indicates increased work of breathing and possible
respiratory compromise.
Examination (RNC-MNN) Verified Questions,
Correct Answers, and Detailed Explanations for
Science Students||Already Graded A+
1. Which hormone is primarily responsible for uterine contractions
during labor?
A. Estrogen
B. Progesterone
C. Oxytocin
D. Prolactin
Answer: C
Oxytocin stimulates rhythmic uterine contractions and plays a key
role in labor progression.
2. A gravida 2 para 1 woman at 36 weeks reports sudden vaginal
bleeding with no pain. Which condition is most likely?
A. Abruptio placentae
B. Uterine rupture
C. Placenta previa
D. Vasa previa
Answer: C
Placenta previa typically presents with painless, bright red vaginal
bleeding in late pregnancy.
3. The most reliable indicator of adequate uteroplacental perfusion
during labor is:
,A. Maternal blood pressure
B. Frequency of contractions
C. Fetal heart rate pattern
D. Cervical dilation
Answer: C
Fetal heart rate patterns directly reflect fetal oxygenation and
uteroplacental perfusion.
4. Which assessment finding is expected in a normal newborn
during the first hour of life?
A. Heart rate 80 beats/min
B. Respiratory rate 20 breaths/min
C. Acrocyanosis
D. Persistent central cyanosis
Answer: C
Acrocyanosis is common and normal in newborns during the
immediate transition period.
5. A priority nursing intervention for a woman with preeclampsia is:
A. Encourage ambulation
B. Increase sodium intake
C. Monitor blood pressure and reflexes
D. Restrict protein intake
Answer: C
Monitoring blood pressure and deep tendon reflexes helps detect
worsening disease or magnesium toxicity.
6. Which finding is most concerning in a postpartum woman?
,A. Lochia rubra for 3 days
B. Uterine cramping during breastfeeding
C. Boggy uterus
D. Mild perineal discomfort
Answer: C
A boggy uterus indicates uterine atony, a leading cause of
postpartum hemorrhage.
7. Which fetal heart rate pattern is associated with umbilical cord
compression?
A. Early decelerations
B. Late decelerations
C. Variable decelerations
D. Accelerations
Answer: C
Variable decelerations are abrupt and irregular, commonly caused by
cord compression.
8. A newborn of a diabetic mother is at highest risk for:
A. Hypercalcemia
B. Hypoglycemia
C. Hypothermia
D. Polycythemia
Answer: B
Excess maternal glucose leads to fetal hyperinsulinemia, increasing
the risk of neonatal hypoglycemia.
9. Which medication is commonly used to prevent postpartum
hemorrhage?
, A. Magnesium sulfate
B. Terbutaline
C. Oxytocin
D. Nifedipine
Answer: C
Oxytocin promotes uterine contraction, reducing the risk of excessive
bleeding.
10. When teaching a client about signs of labor, the nurse should
explain that true labor contractions:
A. Stop with ambulation
B. Are irregular
C. Increase in intensity and frequency
D. Are relieved by rest
Answer: C
True labor contractions become progressively stronger, longer, and
closer together.
11. Which assessment finding suggests neonatal respiratory
distress?
A. Periodic breathing
B. Nasal flaring
C. Irregular respirations
D. Abdominal breathing
Answer: B
Nasal flaring indicates increased work of breathing and possible
respiratory compromise.
