Maternity and newborn nursing for the NCLEX: the numbers and signs worth knowing, with their sources
Maternity questions on the NCLEX turn on a small set of numbers and signs: the Apgar score, a fetal heart rate baseline of 110 to 160, what late decelerations mean, the signs of magnesium toxicity, and how to recognize postpartum hemorrhage. Some of these have changed recently or differ between sources, which this guide flags.
Published September 19, 2026
The 2026 NCLEX-RN test plan does not have a maternity category. Care of pregnant, laboring and postpartum clients and newborns is spread across the eight Client Needs categories, especially Health Promotion and Maintenance, which lists ante, intra and postpartum care and newborn care among its content. The clinical details below come mainly from NIH's StatPearls chapters, with CDC, the American Academy of Pediatrics and the US Preventive Services Task Force where they are the authority.
We could not open the American College of Obstetricians and Gynecologists' own pages to quote them directly, so where an ACOG position matters we say what we could and could not confirm. Two recommendations below changed or split between authorities recently, and we show both sides.
The Apgar score
StatPearls describes the Apgar score as five components, each scored 0 to 2: color, heart rate, reflexes, muscle tone and respiration. It is recorded at 1 and 5 minutes after birth for every infant, and every 5 minutes after that for an infant scoring 7 or less at 5 minutes. A total of 7 to 10 is reassuring, 4 to 6 moderately abnormal, and 0 to 3 low.
Newborn vital signs
| Sign | Normal newborn range | Source |
|---|---|---|
| Heart rate | 120 to 160 beats per minute | StatPearls, Physiology, Newborn |
| Respiratory rate | 30 to 60 breaths per minute | StatPearls; the Open RN textbook gives 40 to 60 |
| Temperature | 36.5 to 37.5 °C (97.7 to 99.5 °F) | Open RN textbook on NIH's Bookshelf |
Fetal heart rate patterns
StatPearls puts the normal fetal heart rate baseline at 110 to 160 beats per minute. Decelerations are defined by their shape and timing against contractions, and each shape points to a different cause.
| Deceleration | What it looks like | Usual cause |
|---|---|---|
| Early | A gradual dip that mirrors the contraction | Head compression, usually benign and needing no treatment |
| Variable | An abrupt drop, not tied to contraction timing | Umbilical cord compression |
| Late | A gradual dip that starts after the contraction | Uteroplacental insufficiency |
For late decelerations, StatPearls lists repositioning the mother to the left or right side or knee-chest, an IV fluid bolus, supplemental oxygen and stopping uterine stimulants, which includes oxytocin, with escalation to the provider if the tracing does not improve. StatPearls does not rank these in order, so we can't give you an official sequence, though repositioning and stopping the stimulant are the steps a nurse can take immediately.
Preeclampsia and magnesium sulfate
StatPearls defines the blood pressure criterion as systolic 140 or more or diastolic 90 or more on two occasions at least 4 hours apart after 20 weeks, together with proteinuria of 300 mg or more in 24 hours or a protein to creatinine ratio of 0.3 or more. Without proteinuria, the diagnosis can rest on severe features such as a platelet count under 100,000, impaired liver or kidney function, pulmonary edema or a new headache, and StatPearls lists intravenous magnesium sulfate as the treatment given to prevent seizures.
The nursing priority with magnesium is watching for toxicity. StatPearls says the loss of patellar reflexes should raise immediate suspicion, and that toxicity can progress to flaccid paralysis, respiratory failure and cardiac arrest. Its magnesium toxicity chapter gives calcium gluconate as the antidote, 1 to 3 grams over 2 to 5 minutes.
Postpartum hemorrhage
StatPearls describes postpartum hemorrhage as cumulative blood loss of more than 1,000 mL with signs of hypovolemia within 24 hours, and names uterine atony as the cause in about 70% of cases. ACOG's reVITALize definition is widely reported as 1,000 mL or more, or blood loss with signs of hypovolemia, which catches more clients; we could not open ACOG's page to confirm the exact wording. A boggy uterus is the sign that points to atony, and the Open RN textbook names fundal massage and having the client empty her bladder, because a full bladder keeps the uterus from contracting.
Lochia and involution
Lochia moves from red to pink-brown to yellowish-white. StatPearls says lochia rubra is heavy for the first 3 to 4 days, turns yellowish-white as lochia alba after 10 to 12 days, and can continue for up to 4 to 6 weeks, while the Open RN textbook gives rubra as days 1 to 3 and serosa as days 4 to 10. The same textbook says the fundus sits at about the level of the umbilicus within the first day or two and descends about 1 cm a day, reaching the pubic bone around day 10.
Rh immune globulin
For an Rh-negative mother, StatPearls says a dose of Rho(D) immune globulin is given prophylactically at 26 to 28 weeks and again within 72 hours of delivering an Rh-positive infant. It prevents the mother forming antibodies that could harm a later pregnancy.
Newborn prophylaxis, including a recommendation that changed
The American Academy of Pediatrics has recommended a vitamin K injection for every newborn since 1961. The US Preventive Services Task Force recommends eye prophylaxis for all newborns to prevent gonococcal ophthalmia neonatorum and notes that erythromycin ointment is the only FDA-approved drug for it. For sleep, NIH's Safe to Sleep campaign says to place a baby on its back for every sleep, naps and night, until age 1.
The hepatitis B birth dose is where authorities now disagree. The AAP continues to recommend the vaccine within the first 24 hours of life. In December 2025, CDC changed its guidance so that for infants of mothers who test negative, parents and clinicians may decide together whether and when to begin the series, while infants of mothers who are positive or of unknown status should still receive it within 12 hours. Review books and question banks written before 2026 will teach the within-24-hours rule, and we don't know how NCSBN will treat the change.
Practicing maternity questions
Maternity content often arrives as a case study, where a laboring or postpartum client's record changes between questions. NCLEX case studies explained covers that format, lab values for the NCLEX-RN covers the platelet and kidney results that preeclampsia questions use, and our NCLEX practice questions include labor, postpartum and newborn cases.
Related
- NCLEX case studies explained: one client, six questions, six steps of clinical judgment
- Lab values for the NCLEX-RN: the normal ranges, and why sources disagree about them
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