Correct Answer: C

Rationale: Scheduling the visit at a time that is convenient for the family is crucial for ensuring the family's receptiveness and availability, making the visit more productive. Choosing a time when the mother is feeding the infant (choice B) may not necessarily align with the family's overall convenience and may disrupt the feeding routine. Similarly, scheduling the visit when the husband is out of the home (choice A) might not be optimal as it may exclude an important family member and potentially impact the support system. While spending time with the family (choice D) is important, the primary focus should be on accommodating the family's schedule to maximize the effectiveness of the visit.

Correct Answer: C

Rationale: Infants with Down syndrome are at increased risk of congenital heart defects. Therefore, assessing for abnormal heart sounds is crucial during the physical examination. Bulging fontanels are not typically associated with Down syndrome and may indicate increased intracranial pressure. Stiff lower extremities are not a common finding in Down syndrome and may suggest other musculoskeletal issues. Unusual pupillary reactions are not typically linked to Down syndrome and may be indicative of neurological problems instead.

Correct Answer: C

Rationale: In a 5-year-old child who is unconscious with a respiratory rate of 8 breaths/min and a heart rate of 50 beats/min, the priority is to initiate chest compressions, artificial ventilations, and rapid transport. These vital interventions are crucial in cases of severe respiratory and cardiovascular compromise. Choice A is incorrect because administering 100% oxygen alone may not address the underlying issues of inadequate ventilation and circulatory support. Choice B is not the most appropriate initial intervention in this scenario; chest compressions should precede positive pressure ventilations. Choice D is incorrect as back blows and chest thrusts are indicated in choking emergencies, not in this case of respiratory and cardiovascular compromise.

Correct Answer: C

Rationale: The correct dietary instruction for a child with GERD is to avoid high-fat foods. High-fat foods can relax the lower esophageal sphincter, leading to increased reflux. While avoiding gluten may be necessary for individuals with gluten sensitivity or celiac disease, it is not a standard recommendation for GERD. Avoiding spicy foods and dairy products may help some individuals with GERD, but the most crucial dietary advice is to avoid high-fat foods.

Correct Answer: A

Rationale: In this scenario, the 4-year-old is presenting with signs of airway compromise due to the fall. After performing a jaw-thrust maneuver to open the airway while stabilizing the head to prevent further injury, the next step should be to suction the oropharynx. Suctioning helps to clear any blood or secretions from the mouth and throat, ensuring a clear airway for proper breathing. Inserting a nasopharyngeal airway or initiating positive pressure ventilations would be premature without first ensuring the airway is clear. Placing the patient in the recovery position is not indicated at this point as the focus should be on managing the airway.