Nursing RNC-LRN Questions & Answers

Full Version: 868 Q&A

Latest RNC-LRN Exam Questions and Practice Tests 2025 - Killexams.com

RNC-LRN Dumps RNC-LRN Braindumps

RNC-LRN Real Questions RNC-LRN Practice Test RNC-LRN Actual Questions

Nursing

RNC-LRN

NCC Low Risk Neonatal Nursing - 2025

https://killexams.com/pass4sure/exam-detail/RNC-LRN

Question: 846

The CRP is 8 mg/L. What does the IgM level indicate, and what infection control measure the nurse enforce?

rmal immunity; continue routine care ute infection; apply contact precautions

mited antibody production; enforce handwashing ternal antibody failure; limit visitation

nation: Undetectable IgM (<5 mg/dL) is normal, reflecting the infant’s inability to produce dies, increasing hepatitis C risk. Strict handwashing prevents pathogen spread, critical given ure immune system and potential exposure.

ion: 847

year-old G3P2 woman at 38 weeks gestation with a triplet pregnancy delivers via cesarean se fetal distress in Triplet C. Birth weights are Triplet A 2,600 g, Triplet B 2,400 g, and Triple

. Triplet C’s hematocrit is 58%, and blood viscosity is elevated. What neonatal complicatio ikely for Triplet C?

piratory distress syndrome poglycemia

auterine growth restriction

A term infant, now 72 hours old, born to a mother with hepatitis C, weighs 3.3 kg and received no prophylaxis at birth. Labs show a WBC of 15,000/mm³, neutrophils 40%, lymphocytes 50%, and IgM <5 mg/dL.

No
Ac
Li
Ma

Quest

Pol
Res
Hy
Intr Answer: A

Explanation: In multiple gestations, Triplet C’s low weight (1,900 g) and high hematocrit (58%) suggest polycythemia, possibly from unequal placental sharing. IUGR is present but secondary, while RDS and hypoglycemia are less directly tied to these lab findings.

Question: 848

A term infant, now 48 hours old, born via emergency cesarean, is on nasal cannula at 1 L/min with an

FiO2 of 30%. The infant weighs 3.7 kg, and an ABG shows pH 7.42, PaCO2 36 mmHg, PaO2 68 mmHg, and HCO3 23 mEq/L. The SaO2 is 95%. What should the nurse do?

Switch to CPAP at 5 cm H2O with 30% FiO2
Increase FiO2 to 35%
Maintain current settings
Reduce flow to 0.5 L/min Answer: C

ndicate stability on nasal cannula. Maintaining settings is appropriate. Increasing FiO2 or ing to CPAP is unnecessary, and reducing flow risks hypoxemia.

ion: 849

week neonate with a history of prolonged rupture of membranes develops jittery movements lity on day 2. Serum glucose is 55 mg/dL, calcium is 7.5 mg/dL, and CSF analysis shows 8

/mm³ (90% neutrophils), glucose 20 mg/dL, and protein 150 mg/dL. What is the most likely ying condition mimicking jitteriness?

pocalcemia bdural hematoma poglycemia ningitis

nation: Jittery movements and irritability with CSF pleocytosis (80 WBCs/mm³), low glucose

), and high protein (150 mg/dL) indicate meningitis, likely from prolonged rupture of memb serum glucose (55 mg/dL) rules out hypoglycemia, mild hypocalcemia (7.5 mg/dL) is unli his alone, and subdural hematoma would not explain the CSF findings.

ion: 850

year-old G3P2 woman at 35 weeks gestation presents with severe epigastric pain, nausea, an

Explanation: Normal pH (7.42), PaCO2 (36 mmHg), and adequate oxygenation (PaO2 68 mmHg, SaO2 95%) i

Quest

Hy
Su
Hy
Me

Quest

blood pressure of 165/105 mmHg. Laboratory results show a platelet count of 85,000/mm³, AST 220 U/L, ALT 250 U/L, and LDH 950 U/L. The neonate is delivered emergently via cesarean section with an umbilical artery pH of 7.16, PCO2 60 mmHg, and base deficit -13 mEq/L. What maternal condition most likely contributed to the neonatal acidosis?

Placental abruption
HELLP syndrome
Chorioamnionitis
Cord prolapse

Explanation: The maternal symptoms (epigastric pain, hypertension) and labs (thrombocytopenia, elevated liver enzymes, high LDH) indicate HELLP syndrome, a severe preeclampsia variant. This condition causes placental insufficiency, leading to fetal hypoxia and acidosis (pH 7.16, base deficit -13 mEq/L). Placental abruption involves bleeding, chorioamnionitis requires infection signs, and cord prolapse causes variable decelerations, not this pattern.

Question: 851

year-old mother delivered a term infant 6 days ago and is taking fluoxetine 20 mg daily for rtum depression. The infant is exclusively breastfed, gaining 25 g/day, but exhibits irritabilit leep. Fluoxetine levels in breast milk are 50 ng/mL (therapeutic range: 20–100). What is the

edication effect on this infant?

strointestinal irritation from fluoxetine duced milk quality from maternal depression ug withdrawal from inconsistent exposure

otonin excess causing neurobehavioral changes er: D

nation: Irritability and poor sleep with fluoxetine levels of 50 ng/mL suggest serotonin excess ia breast milk, a known side effect of SSRIs. Milk quality, withdrawal, and GI irritation are

tent with the infant’s normal weight gain and exposure pattern.

ion: 852

week gestation male neonate, now 3 days old, is noted to have a reducible mass in the left in uring a bath. The neonate is asymptomatic, feeding well, and has normal bowel movements ost appropriate management for this inguinal hernia?

ergent surgical repair

servation for spontaneous resolution ctive repair within 1-2 months

Ga
Re
Dr
Ser Answ

Quest

Em
Ob
Ele
Manual reduction and truss application Answer: C

Explanation: A reducible inguinal hernia in an asymptomatic neonate does not require emergent surgery but should be repaired electively within 1-2 months to prevent incarceration, a risk due to the patent processus vaginalis. Observation alone is insufficient, and trusses are not standard care. Timing balances risk and surgical readiness.

Question: 853

A 34-week preterm neonate presents with short limbs, a large head with frontal bossing, and a narrow thorax on X-ray. The neonate develops respiratory distress, and skeletal survey confirms rhizomelic shortening and metaphyseal flaring. Genetic testing reveals an FGFR3 mutation. What is the most likely diagnosis and its inheritance pattern?

Cystic fibrosis with autosomal recessive inheritance
Trisomy 21 with nondisjunction
Achondroplasia with autosomal dominant inheritance
er: C

nation: The short limbs, large head, narrow thorax, and FGFR3 mutation confirm achondropl osomal dominant skeletal dysplasia, often a new mutation. Trisomy 21 lacks skeletal finding ibrosis affects lungs and pancreas, and DiGeorge involves 22q11.2 deletion, not FGFR3.

ion: 854
nate is delivered at 43 weeks gestation with a birth weight of 3,400 g (25th percentile), lengt 0th percentile), and head circumference of 36 cm (50th percentile). Physical exam shows dry skin, long nails, and meconium staining. The neonate develops seizures at 12 hours. What
ikely classification and complication?

-term with perinatal asphyxia m with hypoglycemia
preterm with respiratory distress term with hypothermia

er: A
nation: At 43 weeks with post-term features (cracked skin, long nails) and AGA measuremen is post-term. Seizures suggest perinatal asphyxia, a risk from placental dysfunction. Other do not align with gestation or symptoms.

ion: 855
DiGeorge syndrome with microdeletion Answ

Quest

Post
Ter
Late
Pre

neonate options

Quest

A term infant, now 72 hours old, presents with lethargy and a glucose of 28 mg/dL (normal: >50). The infant weighs 3.5 kg, and the nurse starts D10W at 80 mL/kg/day via a peripheral IV. A metabolic panel shows sodium 134 mEq/L (normal: 135–145) and calcium 7.8 mg/dL (normal: 8.5–10.5). What should the nurse prioritize?

Monitor urine output for fluid balance
Increase dextrose to 12.5% in the IV fluid
Administer calcium gluconate 100 mg/kg IV
Request a sodium bolus to correct hyponatremia

Explanation: Hypocalcemia (7.8 mg/dL) with severe hypoglycemia (28 mg/dL) and lethargy requires urgent calcium correction to prevent complications like seizures. Glucose is addressed, urine monitoring is secondary, and mild hyponatremia (134 mEq/L) doesn’t need a bolus.

Question: 856

term with apnea

preterm with hypocalcemia m with polycythemia

-term with jaundice

nation: At 36 weeks with AGA measurements (50th percentile) and late preterm features (sof onate is late preterm. Hypocalcemia (7.0 mg/dL) causes jitteriness, a common issue in late p due to immature parathyroid function. Other options mismatch gestation or findings.

ion: 857

infant, now 6 days old, is receiving morphine 0.1 mg/kg/dose IV every 4 hours for postope fter a pyloromyotomy. The infant weighs 3.8 kg, and the NIPS score is 4 (moderate pain) de oses. A blood level is 25 ng/mL (therapeutic: 10–40 ng/mL). What pharmacological interve the nurse consider?

acetaminophen as an adjunct

rease the dose to 0.15 mg/kg for better control itch to fentanyl for faster onset

duce the interval to every 3 hours

A neonate born at 36 weeks gestation weighs 2,500 g (50th percentile), with a length of 46 cm (50th percentile) and head circumference of 32 cm (50th percentile). Physical exam shows soft ears, minimal lanugo, and a calcium level of 7.0 mg/dL at 24 hours with jitteriness. What is the most likely classification and complication?

Pre
Late
Ter
Post

Quest

Add
Inc
Sw
Re

Explanation: A NIPS score of 4 with a therapeutic level (25 ng/mL) suggests inadequate pain control. Adding acetaminophen enhances analgesia without escalating opioid risks. Increasing dose or frequency risks toxicity, and switching to fentanyl is unnecessary with morphine’s efficacy.

Question: 858

A 36-week gestation male neonate, now 7 days old, has a urine output of 0.6 mL/kg/hour and a serum sodium of 150 mEq/L. The neonate is on formula feeds and has no edema. Ultrasound shows normal kidneys. What is the most likely cause of this renal function alteration?

Diabetes insipidus
Dehydration
Syndrome of inappropriate ADH
Renal tubular acidosis Answer: B

ion: 859

nurse assesses the gag reflex in a 2-day-old neonate with a PaCO2 of 55 mmHg and HCO3 of 2 The reflex is present but weak. What is the most likely cause?

nial nerve damage

rmal variation in reflex strength tabolic alkalosis enhancing the reflex spiratory acidosis weakening the reflex

nation: PaCO2 55 mmHg and HCO3 28 mEq/L indicate respiratory acidosis with partial nsation, which can cause lethargy and weaken reflexes like the gag. Option B is incorrect as ag is not typical.

ion: 860

erm infant born at 35 weeks gestation, now 5 days old, is receiving sucrose 24% orally for p a venous puncture. The infant’s heart rate is 165 bpm (baseline 140), and the N-PASS scor ain). What nonpharmacological intervention should the nurse add?

rease ambient light for distraction

Explanation: Low urine output with hypernatremia and normal kidneys suggest dehydration, likely from inadequate fluid intake or losses, common in preterms transitioning to feeds. Diabetes insipidus causes dilute urine, SIADH causes hyponatremia, and renal tubular acidosis involves acidosis, none aligning with this presentation.

Quest

Cra
No
Me
Re

Quest

Inc
Apply a cold pack to the site
Swaddle the infant during the procedure
Delay the puncture for 30 minutes Answer: C

Explanation: A score of 3 with tachycardia (165 bpm) indicates mild pain despite sucrose. Swaddling enhances comfort and reduces stress, complementing sucrose. Cold packs numb but don’t soothe, light increases distress, and delay doesn’t address immediate pain.

Question: 861

A 38-week gestation male neonate, now 3 days old, undergoes circumcision with a Plastibell device. On day 7, the parents note the ring has not fallen off, and the penis is swollen with a grayish discoloration. What is the most likely postoperative complication requiring intervention?

Retained Plastibell ring
Necrosis from tight ring
Wound infection
er: B

nation: Delayed ring detachment with swelling and grayish discoloration suggest necrosis fro lastibell ring compromising blood flow, requiring urgent removal. Infection involves fever, d ring alone doesn’t cause discoloration, and adhesions form later, none matching this ische

ion: 862

week preterm neonate presents with holoprosencephaly, polydactyly, and a midline facial cle type analysis shows 47,XY,+13, and the neonate develops apnea requiring ventilation. What ppropriate family counseling point regarding recurrence risk?

gh risk due to autosomal recessive inheritance currence risk is low due to sporadic nondisjunction derate risk due to parental translocation
risk as it’s a de novo mutation er: B
nation: The features (holoprosencephaly, polydactyly, midline cleft) and karyotype 47,XY,+1 confirm Trisomy 13, typically a sporadic nondisjunction event with low recurrence risk (<1%) unl al translocation is identified (not suggested here). Recessive inheritance and de novo mutatio
aracterize this condition.
Adhesion formation Answ

Quest

Hi
Re
Mo
No

Question: 863

During a neurological exam, a nurse strokes the sole of a 3-day-old neonate’s foot from heel to toe in an inverted “J” pattern. The big toe dorsiflexes, and the other toes fan outward bilaterally. The neonate’s serum ionized calcium is 4.0 mg/dL (normal: 4.4-5.2 mg/dL), and magnesium is 1.8 mg/dL. How should the nurse interpret this Babinski reflex finding?

Abnormal response indicating upper motor neuron dysfunction
Hypocalcemia-induced exaggeration of the reflex
Normal finding for a neonate of this age
Potential spinal cord injury requiring imaging Answer: C

Explanation: A positive Babinski reflex (dorsiflexion of the big toe with fanning of others) is normal in neonates up to 12-24 months due to immature corticospinal tracts. The slightly low ionized calcium (4.0 mg/dL) may cause neuromuscular irritability, but it does not alter the Babinski reflex’s expected presence in a 3-day-old.

year-old mother delivered a term infant 6 days ago and is supplementing breastfeeding with formula due to perceived low supply. The infant’s weight gain is 25 g/day, and the mother asks ab

sition of formula compared to breast milk. Lab results show infant iron at 55 µg/dL (normal hat should the nurse explain?

mula lacks antibodies found in breast milk mula has higher iron to prevent anemia mula contains more fat than breast milk mula is lower in carbohydrates

nation: Low iron (55 µg/dL) and normal weight gain (25 g/day) highlight a nutritional gap. F fied with higher iron than breast milk to prevent anemia, a key compositional difference. odies, fat, and carbs vary, but iron is most relevant here.

ion: 865

year-old G1P0 woman at 39 weeks gestation undergoes a cord gas analysis at delivery due to ged second stage labor. The umbilical artery pH is 7.10, PCO2 is 60 mmHg, and base defici The neonate’s Apgar scores are 5 at 1 minute and 7 at 5 minutes. What is the most likely

al complication?

poxic-ischemic encephalopathy

Question: 864

For
For
For
For Answ

Quest

prolon t is -15

Cer
Hy
Respiratory distress syndrome
Seizures Answer: B

Explanation: Severe acidosis (pH 7.10, base deficit -15 mEq/L) and low Apgar scores indicate perinatal asphyxia, increasing the risk of hypoxic-ischemic encephalopathy. Cerebral palsy is a long-term outcome, not an immediate complication. Respiratory distress and seizures may occur but are secondary to HIE.

Question: 866

A term infant, now 72 hours old, is being treated for suspected neonatal sepsis with intravenous gentamicin. The ordered dose is 4 mg/kg every 24 hours, and the infant weighs 3.2 kg. The nurse administers 12.8 mg at 0800, but a trough level drawn at 0700 the next day is 2.5 µg/mL (therapeutic: 0.5–2 µg/mL; toxic: >2 µg/mL). What pharmacokinetic principle should guide the nurse’s next action?

Hold the next dose and notify the provider
Adjust the dose downward due to reduced clearance
Increase the dosing interval to 36 hours

er: A

nation: A trough level of 2.5 µg/mL exceeds the therapeutic range, indicating accumulation d ure renal clearance in a 72-hour-old infant. Holding the dose and notifying the provider prev y, aligning with pharmacokinetic monitoring of blood drug levels. Adjusting without consult
intervals arbitrarily, or continuing risks harm.

ion: 867

neonate born to a mother with a history of unexplained stillbirth presents on day 4 with pal ocrit of 30%, hemoglobin of 10 g/dL, reticulocyte count of 12%, and total bilirubin of 16 mg
0.6 mg/dL). DAT is negative. What is the most likely underlying condition?

al-maternal hemorrhage ysiologic anemia editary spherocytosis kle cell disease

er: A

nation: The pallor, anemia (hematocrit 30%, hemoglobin 10 g/dL), high reticulocyte count (1 conjugated hyperbilirubinemia (15.4 mg/dL) with a negative DAT and maternal history of th suggest fetal-maternal hemorrhage causing acute blood loss. Hereditary spherocytosis wo ave a positive DAT or spherocytes, physiologic anemia occurs later, and sickle cell disease
Continue the current regimen and recheck in 24 hours Answ

Quest

Fet
Ph
Her
Sic Answ

show HbSS on screening.

Question: 868

A 34-week preterm infant, now 10 days old, has a serum calcium of 6.3 mg/dL, phosphorus of 8.8 mg/dL, and alkaline phosphatase of 480 U/L. The infant is on TPN with minimal enteral feeds. What is a potential consequence if this condition persists?

Pathologic fractures
Cataracts
Adrenal insufficiency
Hepatomegaly Answer: A

Explanation: The infant’s hypocalcemia (6.3 mg/dL), hyperphosphatemia (8.8 mg/dL), and elevated alkaline phosphatase (480 U/L) indicate metabolic bone disease of prematurity. If untreated, poor bone mineralization can lead to pathologic fractures, a significant consequence in preterm infants with prolonged TPN use.

User: Maximiliano*****

I had taken the rnc-lrn arrangement from Killexams.com as it provided me with a medium-level preparation that had given me the notable degree of planning to achieve the 92% score in the rnc-lrn exam test. The tool helped me with the subjects in an interesting way, and I was able to get through them with ease. It made my preparation much less complex, and with the help of Killexams.com, I was organized enough to do well in the exam.
User: Valeria*****

I was able to achieve a score of 89% on the RNC-LRN exam with the help of killexams.com practice tests. The topics of the exam were challenging for me, but the concise answers in simple language were very helpful for quick reference. Thank you for the support.
User: Samantha*****

I highly recommend Killexams.com to anyone who wants to pass the RNC-LRN exam. I passed with a score of 95%, and I believe that anyone can achieve the same result after completing their exams. The explanations were clear and helpful, and I am grateful to the team for their efforts in designing a series of questions that accurately reflect the exam format.
User: Fatima*****

Preparing for the rnc-lrn certification exam can be complicated. Nine out of ten individuals fail the exam without suitable guidance. Killexams rnc-lrn practice tests are the solution to this problem. Their exam practice tests offer an easy way to pass the rnc-lrn exam. I appreciate the hard work of the Killexams team.
User: Alice*****

The practice tests provided by Killexams.com helped me achieve a score of 86% on the rnc-lrn exam. I was pleased to see that around 90% of the questions were similar to the material provided by Killexams.com. I had difficulty with the complex themes, but the material provided helped me overcome those troubles.

Features of iPass4sure RNC-LRN Exam

Files: PDF / Test Engine
Premium Access
Online Test Engine
Instant download Access
Comprehensive Q&A
Success Rate
Real Questions
Updated Regularly
Portable Files
Unlimited Download
100% Secured
Confidentiality: 100%
Success Guarantee: 100%
Any Hidden Cost: $0.00
Auto Recharge: No
Updates Intimation: by Email
Technical Support: Free
PDF Compatibility: Windows, Android, iOS, Linux
Test Engine Compatibility: Mac / Windows / Android / iOS / Linux

Premium PDF with 868 Q&A

Get Full Version

All Nursing Exams

Nursing Exams

Certification and Entry Test Exams

Complete exam list