Correct Answer: A

Rationale: The initial step in managing an undescended testicle is to ascertain if it has been previously observed in the scrotum or if this is a new finding. This information helps in determining the appropriate course of action and further evaluation.

Correct Answer: A

Rationale: A rapid antigen detection test is the appropriate diagnostic test for suspected streptococcal pharyngitis. This test is commonly used due to its quick results, helping in the prompt diagnosis and appropriate treatment of the condition. It specifically detects the presence of streptococcal antigens in the throat, aiding in confirming the diagnosis and guiding the healthcare provider in determining the most suitable treatment plan.

Correct Answer: A

Rationale: In a child with type 1 diabetes presenting with abdominal pain, nausea, vomiting, and a high blood glucose level, the priority is to administer IV fluids to correct dehydration and electrolyte imbalances, which are crucial in managing diabetic ketoacidosis. Administering insulin without addressing fluid deficits can lead to further complications. Monitoring urine output and checking for ketones are important steps but providing IV fluids takes precedence in the initial management of this child's condition.

Correct Answer: A

Rationale: In a postoperative neonatal setting, an increase in respiratory rate (RR) and heart rate (HR) in an infant could indicate pain or distress. It is crucial for the nurse to notify the healthcare provider promptly to assess the infant's condition and provide appropriate interventions. Prompt communication with the healthcare provider ensures timely evaluation and management of the infant's discomfort or distress, promoting optimal postoperative recovery and comfort.

Correct Answer: B

Rationale: Mixing formula with rice cereal is beneficial for infants with GERD as it thickens the feed, helping to reduce the risk of reflux. This can aid in promoting adequate nutrition and minimizing symptoms associated with GERD in infants.