LPN Midterm Review: OB, Pediatrics & Mental Health 2026/2027
UPDATE
1. A nurse is calculating a client’s expected date of delivery using Naegele’s rule.
The client’s last menstrual period began on May 10th. What is the expected
date of delivery?
A. January 17th
B. February 17th
C. February 3rd
D. March 10th
Answer: B
Rationale: Naegele’s rule involves subtracting 3 months and adding 7 days to the first day
of the last menstrual period. May minus 3 months is February, and 10 plus 7 days is 17.
2. Which of the following findings is considered a positive sign of pregnancy?
A. Amenorrhea
B. Fetal heart tones heard by Doppler
C. Positive pregnancy test
D. Quickening
Answer: B
Rationale: Positive signs of pregnancy are definitive objective findings such as fetal heart
tones, ultrasound visualization, or fetal movement felt by a provider. Amenorrhea is
presumptive, and a positive test is probable.
,3. A client at 32 weeks gestation reports painless, bright red vaginal bleeding.
Which condition should the nurse suspect?
A. Placenta previa
B. Abruptio placentae
C. Preterm labor
D. Ectopic pregnancy
Answer: A
Rationale: Placenta previa is characterized by painless, bright red vaginal bleeding.
Abruptio placentae usually involves painful, dark red bleeding.
4. While monitoring a fetal heart rate (FHR) tracing, the nurse notes late
decelerations. Which action is the priority?
A. Increase the oxytocin infusion rate
B. Place the client in a supine position
C. Administer oxygen via non-rebreather mask
D. Check the client’s temperature
Answer: C
Rationale: Late decelerations indicate uteroplacental insufficiency. Priority interventions
include turning the client on their side, stopping oxytocin, and administering oxygen.
5. What is the primary purpose of administering Magnesium Sulfate to a client
with preeclampsia?
A. To lower blood pressure
B. To increase urine output
C. To prevent seizures
D. To induce labor
Answer: C
Rationale: Magnesium Sulfate is an anticonvulsant used specifically to prevent seizures
(eclampsia) in preeclamptic patients, though it may have a mild vasodilatory effect.
, 6. A postpartum nurse is assessing a client 2 hours after delivery. The fundus is
boggy and displaced to the right. What is the first nursing action?
A. Massage the fundus until firm
B. Notify the healthcare provider
C. Assist the client to the bathroom to void
D. Administer oxytocin as ordered
Answer: C
Rationale: A displaced fundus to the right usually indicates a full bladder, which prevents
the uterus from contracting. Emptying the bladder is the first step.
7. Which medication is typically administered to a newborn within 1 hour of
birth to prevent ophthalmia neonatorum?
A. Vitamin K
B. Hepatitis B vaccine
C. Erythromycin ophthalmic ointment
D. Triple Dye
Answer: C
Rationale: Erythromycin ointment is applied to the newborn’s eyes to prevent infections
like gonorrhea or chlamydia that can cause blindness.
8. An Rh-negative mother gives birth to an Rh-positive infant. When should
Rhogam be administered?
A. Within 72 hours postpartum
B. Within 24 hours of the first prenatal visit
C. Only if the mother shows signs of sensitization
D. 1 week after delivery
Answer: A
Rationale: Rhogam is given to Rh-negative mothers within 72 hours of delivering an Rh-
positive baby to prevent antibody formation for future pregnancies.
UPDATE
1. A nurse is calculating a client’s expected date of delivery using Naegele’s rule.
The client’s last menstrual period began on May 10th. What is the expected
date of delivery?
A. January 17th
B. February 17th
C. February 3rd
D. March 10th
Answer: B
Rationale: Naegele’s rule involves subtracting 3 months and adding 7 days to the first day
of the last menstrual period. May minus 3 months is February, and 10 plus 7 days is 17.
2. Which of the following findings is considered a positive sign of pregnancy?
A. Amenorrhea
B. Fetal heart tones heard by Doppler
C. Positive pregnancy test
D. Quickening
Answer: B
Rationale: Positive signs of pregnancy are definitive objective findings such as fetal heart
tones, ultrasound visualization, or fetal movement felt by a provider. Amenorrhea is
presumptive, and a positive test is probable.
,3. A client at 32 weeks gestation reports painless, bright red vaginal bleeding.
Which condition should the nurse suspect?
A. Placenta previa
B. Abruptio placentae
C. Preterm labor
D. Ectopic pregnancy
Answer: A
Rationale: Placenta previa is characterized by painless, bright red vaginal bleeding.
Abruptio placentae usually involves painful, dark red bleeding.
4. While monitoring a fetal heart rate (FHR) tracing, the nurse notes late
decelerations. Which action is the priority?
A. Increase the oxytocin infusion rate
B. Place the client in a supine position
C. Administer oxygen via non-rebreather mask
D. Check the client’s temperature
Answer: C
Rationale: Late decelerations indicate uteroplacental insufficiency. Priority interventions
include turning the client on their side, stopping oxytocin, and administering oxygen.
5. What is the primary purpose of administering Magnesium Sulfate to a client
with preeclampsia?
A. To lower blood pressure
B. To increase urine output
C. To prevent seizures
D. To induce labor
Answer: C
Rationale: Magnesium Sulfate is an anticonvulsant used specifically to prevent seizures
(eclampsia) in preeclamptic patients, though it may have a mild vasodilatory effect.
, 6. A postpartum nurse is assessing a client 2 hours after delivery. The fundus is
boggy and displaced to the right. What is the first nursing action?
A. Massage the fundus until firm
B. Notify the healthcare provider
C. Assist the client to the bathroom to void
D. Administer oxytocin as ordered
Answer: C
Rationale: A displaced fundus to the right usually indicates a full bladder, which prevents
the uterus from contracting. Emptying the bladder is the first step.
7. Which medication is typically administered to a newborn within 1 hour of
birth to prevent ophthalmia neonatorum?
A. Vitamin K
B. Hepatitis B vaccine
C. Erythromycin ophthalmic ointment
D. Triple Dye
Answer: C
Rationale: Erythromycin ointment is applied to the newborn’s eyes to prevent infections
like gonorrhea or chlamydia that can cause blindness.
8. An Rh-negative mother gives birth to an Rh-positive infant. When should
Rhogam be administered?
A. Within 72 hours postpartum
B. Within 24 hours of the first prenatal visit
C. Only if the mother shows signs of sensitization
D. 1 week after delivery
Answer: A
Rationale: Rhogam is given to Rh-negative mothers within 72 hours of delivering an Rh-
positive baby to prevent antibody formation for future pregnancies.
