During a well-baby check, the nurse hides a block under the baby's blanket, and the baby looks for the block. Which normal growth and development milestone is the baby developing?

A. Separation anxiety.

B. Associative play.

C. Object prehension.

D. Object permanence.

Correct Answer: D
Rationale: When a baby looks for a hidden object, it demonstrates the development of object permanence. This milestone is significant as it signifies the baby's understanding that objects continue to exist even when they are not visible. It is a crucial aspect of cognitive development in infancy. Choice A, separation anxiety, refers to distress when separated from a primary caregiver and is not demonstrated in this scenario. Choice B, associative play, involves interactive play with others and is not relevant to object search. Choice C, object prehension, refers to the ability to grasp and hold objects, which is not specifically demonstrated by looking for a hidden object in this context.

A 6-year-old boy with bronchial asthma takes the beta-adrenergic agonist agent albuterol (Proventil). The child's mother tells the nurse that she uses this medication to open her son's airway when he is having trouble breathing. What is the nurse's best response?

• A. Recommend that the mother bring the child in for immediate evaluation
• B. Advise the mother that overuse of the drug may cause chronic bronchitis
• C. Assure the mother that she is using the medication correctly
• D. Confirm that the medication helps to reduce airway inflammation

Correct Answer: C
Rationale: The nurse's priority is to reassure the mother that she is using albuterol correctly to open her son's airways during episodes of difficulty breathing. This reassurance helps build trust and ensures that the child receives the intended benefit of the medication. The answer choice recommending immediate evaluation (A) is not appropriate at this point as the mother is using the medication as prescribed. Advising about overuse causing chronic bronchitis (B) is incorrect and may cause unnecessary alarm. Confirming that the medication helps reduce airway inflammation (D) is not the best response because albuterol is a beta-adrenergic agonist used primarily for bronchodilation in acute asthma exacerbations, rather than for reducing inflammation.

The nurse is conducting an admission assessment of an 11-month-old infant with CHF who is scheduled for repair of restenosis of coarction of the aorta that was repaired 4 days after birth. Findings include blood pressure higher in the arms than the lower extremities, pounding brachial pulses, and slightly palpable femoral pulses. What pathophysiologic mechanisms support these findings?

• A. The aortic semilunar valve obstructs blood flow into the systemic circulation
• B. The lumen of the aorta reduces the volume of the blood flow to the lower extremities
• C. The pulmonic valve prevents adequate blood volume into the pulmonary circulation
• D. An opening in the atrial septum causes a murmur due to a turbulent left-to-right shunt

Correct Answer: B
Rationale: The correct answer is B. Coarctation of the aorta causes narrowing of the aorta, reducing blood flow to the lower extremities. This narrowing results in higher blood pressure in the arms compared to the lower extremities, along with stronger brachial pulses and slightly palpable femoral pulses. Choices A, C, and D are incorrect because they do not align with the pathophysiological mechanism of coarctation of the aorta, which specifically leads to reduced blood flow to the lower extremities.

The healthcare provider is evaluating the effects of thyroid therapy used to treat a 5-month-old with hypothyroidism. Which behavior indicates that the treatment has been effective?

• A. Laughs readily, turns from back to side.
• B. Has strong Moro and tonic neck reflexes.
• C. Keeps fists clenched, opens hands when grasping an object.
• D. Can lift head, but not chest when lying on abdomen.

Correct Answer: A
Rationale: The ability to laugh readily and turn from back to side indicates the effectiveness of thyroid therapy and normal development in a 5-month-old. These behaviors suggest improved muscle tone and motor skills, which are positive outcomes of thyroid hormone replacement therapy for hypothyroidism. Choices B, C, and D describe developmental milestones that are not specific indicators of the effectiveness of thyroid therapy in treating hypothyroidism in a 5-month-old.

A mother brings her 3-month-old infant to the clinic, concerned about frequent vomiting after feeding. The practical nurse (PN) suspects gastroesophageal reflux (GER). Which recommendation should the PN provide to the mother?

• A. Feed the infant in a prone position.
• B. Provide larger, less frequent feedings.
• C. Keep the infant upright for 30 minutes after feeding.
• D. Offer only formula thickened with rice cereal.

Correct Answer: C
Rationale: The correct recommendation for reducing symptoms of gastroesophageal reflux (GER) in infants is to keep the infant upright for 30 minutes after feeding. This position helps prevent the backflow of stomach contents, alleviating symptoms of reflux. Placing the infant in a prone position or providing larger, less frequent feedings may worsen symptoms by increasing the likelihood of regurgitation. Offering only formula thickened with rice cereal is not the first-line intervention for GER and should not be recommended initially.