HESI LPN–ADN MOBILITY EXAM (PEDIATRICS)
MOST TESTED QUESTIONS AND ANSWERS GRADED
A+ WITH RATIONALES
Birth weight growth norm: By what age does birth weight double and triple?
A. Doubles by 12 months, triples by 2 years
B. Doubles by 6 months, triples by 12 months
C. Doubles by 6 months, triples by 1 year
D. Doubles by 3 months, triples by 9 months
Rationale: Normal infant growth: weight doubles at ~6 months and triples by ~12 months.
-a-boo?
A. 2 months
B. 3–4 months
C. ~6 months
D. 12 months
Rationale: Object permanence/interactive play develops by ~6 months (peek-a-boo).
A. 4 months
B. 6 months
C. ~8 months
D. 10 months
Rationale: Independent sitting develops around 6–9 months; ~8 months is typical.
(thumb-index) grasp:
A. 4–6 months
B. 10–12 months
C. 18 months
D. 2 years
Rationale: Mature pincer grasp refines by 10–12 months.
— which toy best fits an infant?
A. Puppets
B. Mobiles
C. Cars
D. Board games
Rationale: Mobiles stimulate vision & tracking in infants.
,ESTUDYR
toddler / preschool / school-age / adolescent respectively?
A. Cars / mobiles / puppets / self-reflection activities
B. Puppets / cars / mobiles / games
C. Puppets: toddler/preschool; Cars: preschool; Games: school-age; Themselves: adolescent
D. Mobiles: toddler; Puppets: adolescent; Cars: infant; Games: preschool
Rationale: Toys reflect developmental stage and skills.
A. Sentences of 10 words
B. 2–3 word sentences
C. 1-word only
D. Full grammar
Rationale: Two-year-olds generally form 2–3 word phrases.
A. When
B. Where
C. Why
D. How
Rationale: Preschoolers are curious — “why” is common.
-age growth per year: weight and height gain:
A. 1–2 lb and 1 inch
B. 4–6 lb and ~2 inches
C. 8–10 lb and 4 inches
D. No predictable gain
Rationale: Typical yearly gain: ~4–6 lb and ~2 in.
A. Any cold stops vaccines
B. Only significant fever (>99.0–101°F depending on policy) postpones — mild cold does not
C. Always postpone for 1 week
D. Only postpone for cough
Rationale: Minor illnesses without fever are not contraindications; fever is the usual threshold.
— choose the best description:
A. X-linked; low sweat chloride; constipation
B. Autosomal dominant; normal lungs
C. Autosomal recessive; pancreatic enzyme deficiency, steatorrhea, chronic pulmonary
infections, high sweat chloride
D. Mitochondrial; cardiac defects
Rationale: CF is AR with pancreatic insufficiency and elevated sweat chloride.
,ESTUDYR
A. Hold pancreatic enzymes until after meal
B. Give pancreatic enzymes with meals/snacks
C. No enzyme therapy needed
D. Enzymes only at night
Rationale: Pancreatic enzymes are given with feeds to aid digestion.
— which are correct?
A. Hold infant <80, child <60
B. Hold infants <100 bpm; older children <80 bpm
C. Hold everyone <60 bpm
D. No holding rules for kids
Rationale: Pediatric pediatric digoxin hold values commonly: infant <100, child <70–80
depending on age.
— VSD is:
A. Cyanotic lesion
B. Acyanotic (left→right shunt)
C. Mixed lesion
D. Not congenital
Rationale: VSD causes left-to-right shunt → acyanotic initially.
A. Always cyanotic at birth
B. Acyanotic lesion — connection between aorta and pulmonary artery
C. Not treated medically
D. Only in adults
Rationale: PDA is an acyanotic shunt; can be closed medically/surgically.
A. VSD and ASD
B. Tetralogy of Fallot, Transposition of the great vessels, Truncus arteriosus
C. Mitral stenosis only
D. PDA only
Rationale: Those listed are major cyanotic congenital heart defects.
A. Kawasaki disease
B. Rheumatic fever (post-strep) — can cause valvular disease
C. Viral myocarditis
D. Birth trauma
Rationale: Rheumatic fever damages heart valves (still major acquired cause).
, ESTUDYR
A. Tachypnea
B. Nasal flaring
C. Grunting
D. Bradycardia
Rationale: Early distress: tachypnea, retractions, nasal flaring, grunting. Bradycardia indicates
late/failure.
failure in infants:
A. Tachypnea and nasal flaring
B. Bradycardia, decreased RR, apnea, decreased LOC
C. Mild retractions only
D. Only coughing
Rationale: Bradycardia, apnea, decreased responsiveness indicate decompensation.
length doubles by about:
A. 1 year
B. 2 years
C. By 4 years
D. 6 months
Rationale: Birth length approximately doubles by ~4 years.
f adult height by:
A. 1 year
B. 2 years
C. 4 years
D. 8 years
Rationale: By 2 years, children reach roughly half their adult height.
A. 6 months
B. ~18 months
C. 3 years
D. 4 years
Rationale: Gross motor skill: overhand throw emerges ~15–18 months.
–3 word sentences?
A. 1 year
B. 2 years
C. 4 years
D. 5 years
Rationale: Two-year milestone.