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Exam Review

Key Facts: RNC-LRN Exam

175

Exam Questions

NCC (150 scored + 25 pretest)

Time Limit

NCC

43%

General Management Weight

NCC exam blueprint

39%

Pathophysiology Weight

NCC exam blueprint

$210

Exam Fee

NCC

3 yrs

Certification Validity

NCC

The RNC-LRN exam from NCC consists of 175 multiple-choice questions (150 scored, 25 pretest) with a 3-hour time limit. The exam costs $210 and uses scaled scoring. Domain weights are General Management 43%, Pathophysiologic Conditions 39%, General Assessment 14%, and Professional Issues 4%. Candidates must hold an active RN license with 24 months specialty experience and 2,000 hours of direct practice in low risk neonatal nursing.

Sample RNC-LRN Practice Questions

Try these sample questions to review concepts for the RNC-LRN exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1A newborn's Apgar score at 1 minute is 4. This score indicates:

A.A vigorous, healthy newborn requiring routine care

B.A moderately depressed newborn requiring some resuscitative measures

C.The newborn is in excellent condition

D.No further assessment is needed

Explanation: An Apgar score of 4 at 1 minute indicates moderate depression requiring intervention such as stimulation, airway clearance, and possibly positive pressure ventilation. Scores of 0-3 indicate severe depression, 4-6 moderate depression, and 7-10 a vigorous newborn. A 5-minute Apgar should be assessed to evaluate the response to interventions.

2The Ballard Maturational Assessment is used to determine:

A.Neonatal pain level

B.Gestational age based on neuromuscular and physical maturity

C.Blood glucose level

D.Risk for jaundice

Explanation: The New Ballard Score (NBS) assesses gestational age by evaluating six neuromuscular maturity indicators (posture, square window, arm recoil, popliteal angle, scarf sign, heel to ear) and six physical maturity indicators (skin, lanugo, plantar surface, breast, eye/ear, genitalia). It is accurate to within two weeks and can be used for newborns from 20 to 44 weeks gestation.

3A term newborn has a temperature of 36.0°C (96.8°F) at 30 minutes of age. The nurse should first:

A.Place the newborn under a radiant warmer and assess for hypothermia causes

B.Wait another hour and recheck

C.Give a warm bath

D.Apply cold packs to stimulate temperature regulation

Explanation: A temperature of 36.0°C is below the normal range for a newborn (36.5-37.5°C) and indicates cold stress or hypothermia. The nurse should immediately place the infant under a radiant warmer, dry thoroughly if still wet, apply a hat, and investigate causes. Untreated hypothermia can lead to hypoglycemia, respiratory distress, and metabolic acidosis in neonates.

4Vitamin K (phytonadione) is administered to newborns to prevent:

A.Respiratory distress syndrome

B.Hemorrhagic disease of the newborn (vitamin K deficiency bleeding)

C.Neonatal jaundice

D.Hypothermia

Explanation: Vitamin K is administered intramuscularly to all newborns within the first hour of life to prevent vitamin K deficiency bleeding (VKDB), previously called hemorrhagic disease of the newborn. Neonates have limited vitamin K stores and immature gut flora that cannot synthesize adequate vitamin K, making them vulnerable to life-threatening bleeding, particularly intracranial hemorrhage.

5The normal heart rate range for a healthy term newborn at rest is:

A.60-80 beats per minute

B.120-160 beats per minute

C.180-220 beats per minute

D.40-60 beats per minute

Explanation: The normal resting heart rate for a healthy term newborn is 120-160 beats per minute. Rates may increase to 180 bpm during crying and decrease to 100 bpm during deep sleep. Persistent tachycardia (>180 bpm at rest) or bradycardia (<100 bpm) warrants further evaluation for potential cardiac, respiratory, or metabolic causes.

6Erythromycin ophthalmic ointment is administered to newborns within 1 hour of birth primarily to prevent:

A.Conjunctivitis from dust exposure

B.Ophthalmia neonatorum caused by Neisseria gonorrhoeae and Chlamydia trachomatis

C.Cataracts

D.Retinopathy of prematurity

Explanation: Erythromycin 0.5% ophthalmic ointment is a mandatory prophylaxis in most states to prevent ophthalmia neonatorum, a serious eye infection caused by maternal Neisseria gonorrhoeae or Chlamydia trachomatis transmitted during vaginal delivery. Untreated gonococcal ophthalmia can cause corneal ulceration and blindness within 24-48 hours.

7A newborn born at 38 weeks gestation weighs 2,100 grams. This infant is classified as:

A.Appropriate for gestational age (AGA)

B.Small for gestational age (SGA)

C.Large for gestational age (LGA)

D.Premature

Explanation: A birth weight of 2,100 grams at 38 weeks gestation falls below the 10th percentile, classifying the infant as small for gestational age (SGA). SGA infants are at increased risk for hypoglycemia, polycythemia, hypothermia, and feeding difficulties. The nurse should monitor blood glucose, maintain thermoregulation, and assess for underlying causes such as placental insufficiency or maternal hypertension.

8A breastfeeding newborn at 18 hours of age has a blood glucose of 38 mg/dL. The infant is alert and feeding well. The nurse should:

A.Immediately start IV dextrose

B.Encourage continued breastfeeding and recheck glucose in 1 hour

C.Discontinue breastfeeding and switch to formula

D.No intervention is needed since the glucose is normal

Explanation: A blood glucose of 38 mg/dL at 18 hours in an asymptomatic, feeding newborn should be managed with continued feeding and rechecking. Per AAP guidelines, for asymptomatic infants, the target glucose depends on age: >=25 mg/dL at 0-4 hours, >=35 mg/dL at 4-24 hours. Since 38 mg/dL meets the threshold, encouraging feeding with recheck is appropriate. IV dextrose is reserved for symptomatic hypoglycemia or persistent low values.

9The first hepatitis B vaccine dose should be administered to a healthy newborn:

A.At 6 months of age

B.Within 24 hours of birth

C.Only if the mother is HBsAg-positive

D.At the 2-week pediatrician visit

Explanation: The CDC and AAP recommend the first dose of hepatitis B vaccine within 24 hours of birth for all medically stable newborns weighing 2,000 grams or more, regardless of maternal HBsAg status. For infants born to HBsAg-positive mothers, hepatitis B immune globulin (HBIG) must also be given within 12 hours of birth. This universal vaccination strategy has significantly reduced perinatal HBV transmission.

10Which maternal condition is most likely to result in a large for gestational age (LGA) newborn?

A.Chronic hypertension

B.Gestational diabetes mellitus

C.Preeclampsia

D.Placenta previa

Explanation: Gestational diabetes mellitus (GDM) is the most common maternal risk factor for LGA infants. Maternal hyperglycemia leads to fetal hyperinsulinemia, which promotes excessive fat and glycogen deposition, resulting in macrosomia (birth weight >4,000g or >90th percentile). LGA infants are at risk for birth injuries, hypoglycemia, and respiratory distress.

About the RNC-LRN Exam

The RNC-LRN certification from the National Certification Corporation validates specialty expertise in caring for healthy newborns. Covering assessment, pathophysiologic conditions, general management, and professional issues, this credential demonstrates advanced competency in low risk neonatal nursing.

Exam sponsor: NCC. The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Questions

175 questions

Time Limit

3 hours

Passing Score

Pass (scaled scoring)

Exam / Certification Fees

$210

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Official sources

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

14%

General Assessment

Maternal history, gestational age assessment, physical and behavioral assessment, vital signs

39%

Assessment/Management of Pathophysiologic Conditions

Respiratory distress, jaundice, hypoglycemia, infection, congenital anomalies, birth injuries

43%

General Management

Thermoregulation, nutrition/feeding, pharmacology, pain management, immunizations, discharge planning

Professional Issues

Evidence-based practice, quality improvement, ethics, and professional development

Preparing for the RNC-LRN Exam

What You Need to Know

Passing score: Pass (scaled scoring)
Exam length: 175 questions
Time limit: 3 hours
Exam / certification fees: $210 Official sources

Using Our Practice Resources

Work through all 100 available questions
Review every answer and explanation
Track weak areas and revisit them
Use our AI tutor for tough concepts

RNC-LRN: Suggested Study Strategy

1Focus on General Management (43%) and Pathophysiologic Conditions (39%) — together they make up 82% of the exam

2Master thermoregulation, feeding assessment, and jaundice management as these are the most heavily tested topics

3Know the gestational age assessment tools (Ballard, Dubowitz) and when each is most appropriate

4Study neonatal pharmacology including vitamin K, erythromycin, hepatitis B vaccine, and common medications

5Practice time management for 175 questions in 3 hours — about 1 minute per question with review time

Frequently Asked Questions

What is the RNC-LRN certification?

The RNC-LRN (Low Risk Neonatal Nursing) is a specialty certification from the National Certification Corporation (NCC) for registered nurses who care for healthy newborns. It validates expertise in newborn assessment, management, feeding, and common neonatal conditions in well-baby nursery settings.

How many questions are on the RNC-LRN exam?

The RNC-LRN exam has 175 multiple-choice questions, of which 150 are scored and 25 are unscored pretest items. You have 3 hours to complete the exam. The exam uses scaled scoring rather than a fixed percentage passing score.

What are the RNC-LRN eligibility requirements?

You need an active RN license, 24 months of specialty experience in low risk neonatal nursing, and a minimum of 2,000 hours of direct practice in the specialty area. Experience must be current within the past 24 months.

How much does the RNC-LRN exam cost?

The RNC-LRN exam fee is $210. The exam is administered at PSI testing centers. A new application and fee are required for retake attempts.

What is the largest content area on the RNC-LRN exam?

General Management is the largest domain at 43%, covering thermoregulation, feeding and nutrition, pharmacology, pain management, circumcision care, immunizations, and discharge planning. The second largest is Pathophysiologic Conditions at 39%.

How long is RNC-LRN certification valid?

RNC-LRN certification is valid for 3 years. You can recertify through continuing education contact hours in neonatal nursing or by retaking the exam before your certification expires.

Free Practice Questions for RNC-LRN

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