During cardiopulmonary resuscitation of an infant, how should chest compressions be performed?

Correct Answer: D

Rationale: Two-finger technique is recommended for single-rescuer CPR in infants to ensure effective chest compression depth.

Correct Answer: A

Rationale: A rapid drop in sodium levels can lead to cerebral edema. The recommended safe correction rate is ≤8 mmol/L per 24 hours to prevent osmotic demyelination and neurological damage.

Correct Answer: B

Rationale: Colic is a common cause of sleep disturbance in young infants.

Correct Answer: C

Rationale: When a preschool child is hospitalized without adequate preparation, they may often react to the hospitalization by regressing. This means that the child may revert back to behaviors that they had previously outgrown, such as bedwetting or wanting a bottle. Hospitalization can be a stressful and overwhelming experience for young children, causing them to seek comfort in familiar behaviors from earlier stages of development. This regression can provide a sense of security and control during a time of uncertainty and unfamiliar circumstances. It is important for parents, caregivers, and healthcare providers to be aware of this potential reaction and provide appropriate support and reassurance to help the child cope with the hospitalization.

Correct Answer: D

Rationale: Choanal atresia is a congenital nasal obstruction that causes cyanosis that worsens with feeding and improves with crying, since crying opens the mouth for breathing. Bilateral atresia requires urgent intervention.