NCLEX OB Practice Questions with Answers

Concept Explanation

NCLEX OB practice questions focus on the nursing care of patients during the antepartum, intrapartum, postpartum, and neonatal periods. This specialized area of nursing, often referred to as maternity or obstetric nursing, requires a deep understanding of physiological changes in the mother, fetal development, and the management of both normal and high-risk pregnancies. Success on the NCLEX-RN in this category involves mastering topics such as fetal heart rate (FHR) monitoring, stages of labor, pharmacological interventions like oxytocin or magnesium sulfate, and postpartum complications like hemorrhage. Candidates must be able to prioritize care based on the stability of the mother and fetus, often applying the principles of the American College of Obstetricians and Gynecologists guidelines. Understanding these concepts is essential for ensuring safety and positive outcomes for the maternal-newborn dyad.

Solved Examples

Reviewing these solved examples helps clarify how to apply clinical judgment to common obstetric scenarios.

1. Scenario: A client at 34 weeks gestation presents with sudden-onset, painless vaginal bleeding. What is the priority nursing action?
   1. The nurse should first assess fetal heart tones and maternal vital signs.
   2. Painless bleeding in the third trimester is a classic sign of placenta previa.
   3. The nurse must avoid any vaginal examinations to prevent further placental abruption.
   4. Oxygen and IV fluids should be prepared if the mother shows signs of shock.
2. Scenario: A laboring client's FHR monitor shows a pattern of late decelerations. What are the immediate steps?
   1. Late decelerations indicate uteroplacental insufficiency.
   2. The nurse should reposition the client to the left side to improve blood flow.
   3. Administer oxygen via non-rebreather mask at 8-10 L/min.
   4. Discontinue the oxytocin infusion if it is running and increase IV fluid rates.
3. Scenario: Calculating the Estimated Date of Birth (EDB) using Naegele’s Rule for a client whose last menstrual period (LMP) began on May 10.
   1. The formula is: $\text{EDB} = \text{LMP} - 3 \text{ months} + 7 \text{ days} + 1 \text{ year}$.
   2. Subtract 3 months from May: May → April → March → February.
   3. Add 7 days to May 10: $10 + 7 = 17$.
   4. The EDB is February 17 of the following year.

Practice Questions

1. A nurse is caring for a client in the first stage of labor. The client’s membranes rupture spontaneously. What is the priority nursing action?
2. A pregnant client at 32 weeks gestation is diagnosed with preeclampsia. Which assessment finding should the nurse report immediately to the healthcare provider?
3. A nurse is assessing a postpartum client 2 hours after delivery. The fundus is boggy and displaced to the right of the midline. What should be the nurse's first action?

4. A client is receiving magnesium sulfate for seizure prophylaxis. The nurse notes a respiratory rate of 10 breaths/min and absent deep tendon reflexes. What medication should the nurse prepare to administer?
5. A nurse is teaching a prenatal class about the signs of true labor. Which statement by a participant indicates a need for further teaching?
6. A newborn is 1 minute old. The heart rate is 110 bpm, the cry is vigorous, there is some flexion of extremities, the body is pink with blue hands and feet, and the infant coughs during suctioning. What is the Apgar score?
7. A client at 38 weeks gestation reports a headache, blurred vision, and epigastric pain. Which condition does the nurse suspect?
8. Which instruction is most important for a nurse to provide to a client who is breastfeeding and experiencing breast engorgement?
9. A nurse is preparing to administer Rho(D) immune globulin to a client. Which laboratory result indicates the need for this medication?
10. A nurse is monitoring a client in labor who has an internal fetal scalp electrode. The nurse observes variable decelerations on the monitor. What is the most likely cause?

Answers & Explanations

1. Answer: Assess the fetal heart rate (FHR). When membranes rupture, the primary risk is umbilical cord prolapse. Assessing the FHR immediately helps detect fetal distress caused by cord compression.
2. Answer: Facial edema or severe headache. These are signs of worsening preeclampsia or impending eclampsia. While peripheral edema is common, facial edema and neurological changes require urgent intervention. For more on complex system interactions, see Hard NCLEX Renal Practice Questions.
3. Answer: Assist the client to empty her bladder. A fundus displaced to the right is usually caused by a full bladder, which prevents the uterus from contracting and increases the risk of hemorrhage.
4. Answer: Calcium gluconate. This is the specific antidote for magnesium sulfate toxicity. Signs of toxicity include respiratory depression and loss of reflexes.
5. Answer: "True labor contractions will stop if I walk around or change my position." This is incorrect; true labor contractions typically become stronger with activity. This indicates the participant needs more education.
6. Answer: 8. Breakdown: HR > 100 (2), Vigorous cry (2), Flexion (1), Body pink/blue extremities (1), Cough/sneeze (2). Total = 8.
7. Answer: HELLP Syndrome or Severe Preeclampsia. Epigastric pain is a critical sign of liver involvement (Glisson's capsule stretching), which is a medical emergency.
8. Answer: Apply cold compresses between feedings and breastfeed frequently. Frequent emptying of the breast is the best way to resolve engorgement.
9. Answer: Mother is Rh-negative and the indirect Coombs test is negative. Rho(D) is given to prevent sensitization in Rh-negative mothers who have not yet developed antibodies.
10. Answer: Umbilical cord compression. Variable decelerations are typically caused by cord compression. Repositioning the mother is the initial intervention.

To further sharpen your skills in specialized nursing care, you might also find our Hard NCLEX Med Surg Practice Questions helpful for understanding systemic complications. If you are struggling with specific maternity medications, using an AI Flashcard Generator can help you memorize dosages and side effects efficiently. For those preparing for the full scope of the exam, the AI Exam Simulator provides a realistic testing environment.

Quick Quiz

Frequently Asked Questions

What is the difference between placenta previa and placental abruption?

Placenta previa involves the placenta covering the cervical os and presents with painless, bright red bleeding. Placental abruption is the premature separation of the placenta from the uterine wall, characterized by painful, dark red bleeding and a board-like abdomen.

How is the Apgar score calculated?

The Apgar score is assessed at 1 and 5 minutes after birth based on five criteria: Heart Rate, Respiratory Effort, Muscle Tone, Reflex Irritability, and Color. Each category is scored from 0 to 2, with a maximum total score of 10.

What are the signs of magnesium sulfate toxicity?

Signs of magnesium sulfate toxicity include a respiratory rate of less than 12 breaths per minute, the absence of patellar deep tendon reflexes, and decreased urinary output. Nurses must have calcium gluconate available as the antidote.

When should a mother receive the Rho(D) immune globulin?

An Rh-negative mother should receive Rho(D) immune globulin at 28 weeks of gestation and again within 72 hours after delivery if the newborn is Rh-positive. It is also given after any event where fetal-maternal blood mixing might occur, such as a miscarriage or amniocentesis.

What defines the three stages of labor?

The first stage begins with the onset of regular contractions and ends with full cervical dilation. The second stage starts at full dilation and ends with the birth of the baby, while the third stage involves the delivery of the placenta.

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