Free CPN sample questions

Correct answer: Play interactive peek-a-boo games and practice brief, predictable departures with consistent verbal reassurance and a transitional comfort object.

Stranger anxiety and separation protest peak between 8 and 12 months of age as the infant develops object permanence (understanding that people and objects continue to exist when out of sight) and secure attachment to primary caregivers. Playing peek-a-boo reinforces that the caregiver reliably returns after disappearing, while brief, honest, and predictable goodbye routines build trust. Sneaking away undermines trust and heightens hypervigilance in the infant.

Correct answer: 7 months

For preterm infants born prior to 37 weeks' gestation, growth parameters and developmental milestones are evaluated using corrected gestational age until 24 months of chronological age. Corrected age is calculated by subtracting the number of weeks born prematurely from 40 weeks' full-term gestation (40 weeks - 28 weeks = 12 weeks, or 3 months) from the infant's chronological age (10 months - 3 months = 7 months). Therefore, anticipatory guidance should focus on 7-month developmental milestones such as sitting unsupported and transferring objects from hand to hand.

Correct answer: Instruct the father to place the newborn wholly supine on a firm, flat mattress in a bare crib free of wedges and bumpers, explaining that inclined surfaces increase the risk of positional asphyxiation.

American Academy of Pediatrics (AAP) safe sleep guidelines recommend placing infants supine (on the back) on a firm, flat, non-inclined sleep surface for every sleep period. Elevating the head of a crib or using inclined sleep positioners is ineffective in reducing gastroesophageal reflux and significantly increases the risk that the infant will slide into a chin-to-chest posture or roll onto the stomach, causing positional asphyxiation. In the supine position, the trachea lies anatomically superior to the esophagus, protecting against aspiration.

Correct answers: Keep the 7-year-old in a belt-positioning booster seat in the back seat until reaching 145 cm (4 ft 9 in) in height and the vehicle's lap-and-shoulder belt fits properly.; Store all household firearms unloaded in a locked safe or lockbox, with ammunition locked in a separate location inaccessible to the children.

School-age children who have outgrown the weight or height limit of their forward-facing 5-point harness seat must use a belt-positioning booster seat in the rear seat until the vehicle seat belt fits properly—typically when the child reaches 145 cm (4 ft 9 in) tall between 8 and 12 years of age. Proper fit requires the shoulder belt to cross the middle of the chest and shoulder and the lap belt to lie low across the upper thighs rather than the abdomen.

Evidence-based firearm injury prevention requires that if firearms are kept in the home, they must be stored unloaded in a locked gun safe or lockbox, with the ammunition locked in a separate location. Simply hiding a firearm on a high closet shelf or educating young children not to touch guns is insufficient to prevent unintentional pediatric firearm injuries.

Correct answer: Administer the inactivated DTaP vaccine today and defer the live attenuated MMR and varicella vaccines until 11 months after the high-dose IVIG infusion.

High-dose intravenous immune globulin (IVIG 2 g/kg) provides high levels of circulating passive maternal/donor antibodies that persist for months and interfere with the active replication required for parenteral live attenuated viral vaccines (MMR and varicella) to generate an endogenous immune response. Therefore, MMR and varicella vaccinations must be deferred for 11 months following a 2 g/kg IVIG dose. Inactivated toxoid/subunit vaccines such as DTaP are not meaningfully inhibited by circulating passive antibodies and should be administered on schedule.

Correct answer: Brush the teeth twice daily with a soft toothbrush using a rice-grain-sized smear of fluoridated toothpaste and establish a dental home by 12 months of age.

To prevent early childhood caries, oral hygiene with a soft toothbrush and a rice-grain-sized smear of fluoridated toothpaste should begin upon eruption of the first primary tooth (transitioning to a pea-sized amount at age 3 years). A dental home should be established within 6 months of the first tooth eruption and no later than 12 months of age. Additionally, caregivers should avoid putting the infant to bed with a bottle containing milk or juice and transition from a bottle to an open cup around 12 months.