Y2-408 Neonatology Exam Questions and
Answers with Verified Solutions | Latest
Updated 2026
What is full-term gestation? 37-42 weeks gestation
What is considered preterm? Less than 37 weeks gestation
What is chronological age (CA)? Age since birth
Baby born at 32 weeks GA CA (Chronological Age) = 4 weeks
Today = 4 weeks after birth
What is gestational age (GA)? Age since conception based on last
Baby born at 32 weeks GA menstrual
Today = 4 weeks after birth period
GA = 32 + 4 = 36wk
What is adjusted age (AA)? Age corrected for prematurity after due
Born at 32 weeks GA date
Now 12 weeks old (CA) Step 1: Find due date gap
AA? Term = 40 weeks
Born at 32 → 8 weeks early
→ Calculate:
CA = 12 weeks
GA = 32 + 12 = 44 weeks
AA = 12 - 8 = 4 weeks (1 month)
, Why is gestational age more It reflects developmental maturity and
important than chronological age expected
in movement/behavior
NICU?
What are the 4 levels of neonatal Level 1 well nursery
care? Level 2 special care nursery
Level 3 NICU
Level 4 regional NICU
What defines Level 1 neonatal Full-term or stable late preterm infants
care?
What defines Level 2 neonatal ≥32 weeks, moderately ill or
care? physiologically
immature infants
What defines Level 3 NICU? All gestational ages with complex critical
conditions
What defines Level 4 NICU? Highest level with ECMO and complex
surgical
care
How did old NICU environments Noise, light, and stimulation caused
negatively affect infants? hypoxia, sleep
disruption, and impaired development
What is the modern NICU focus? Developmental care and minimizing
stressors
Answers with Verified Solutions | Latest
Updated 2026
What is full-term gestation? 37-42 weeks gestation
What is considered preterm? Less than 37 weeks gestation
What is chronological age (CA)? Age since birth
Baby born at 32 weeks GA CA (Chronological Age) = 4 weeks
Today = 4 weeks after birth
What is gestational age (GA)? Age since conception based on last
Baby born at 32 weeks GA menstrual
Today = 4 weeks after birth period
GA = 32 + 4 = 36wk
What is adjusted age (AA)? Age corrected for prematurity after due
Born at 32 weeks GA date
Now 12 weeks old (CA) Step 1: Find due date gap
AA? Term = 40 weeks
Born at 32 → 8 weeks early
→ Calculate:
CA = 12 weeks
GA = 32 + 12 = 44 weeks
AA = 12 - 8 = 4 weeks (1 month)
, Why is gestational age more It reflects developmental maturity and
important than chronological age expected
in movement/behavior
NICU?
What are the 4 levels of neonatal Level 1 well nursery
care? Level 2 special care nursery
Level 3 NICU
Level 4 regional NICU
What defines Level 1 neonatal Full-term or stable late preterm infants
care?
What defines Level 2 neonatal ≥32 weeks, moderately ill or
care? physiologically
immature infants
What defines Level 3 NICU? All gestational ages with complex critical
conditions
What defines Level 4 NICU? Highest level with ECMO and complex
surgical
care
How did old NICU environments Noise, light, and stimulation caused
negatively affect infants? hypoxia, sleep
disruption, and impaired development
What is the modern NICU focus? Developmental care and minimizing
stressors
