ATI Pediatric Proctored Exam

Correct Answer: A

Rationale: The correct answer is A. The posterior fontanel should be closed by 4 months of age. An open posterior fontanel at this age may indicate a delay in normal closure, which could be a cause for concern and require further evaluation by the healthcare provider to ensure proper development and growth.

Correct Answer: D

Rationale: During a vaso-occlusive crisis in sickle cell anemia, maintaining bed rest is crucial to reduce oxygen consumption and alleviate pain. Movement can worsen the crisis by increasing sickling of red blood cells, leading to further tissue damage and pain. Bed rest helps to improve blood flow, reduce pain, and promote healing.

Correct Answer: B

Rationale: The patient is exhibiting symptoms of anaphylaxis triggered by a peanut allergy, which is a severe and potentially life-threatening allergic reaction. The appropriate medication for anaphylaxis is epinephrine. Epinephrine acts quickly to reverse the symptoms by constricting blood vessels, relaxing bronchial muscles, and reducing laryngeal edema, making it the drug of choice for this situation. Promethazine, diphenhydramine, and hydroxyzine are not the first-line treatments for anaphylaxis and may not address the severe manifestations seen in this case.

Correct Answer: A

Rationale: Isotonic dehydration requires the administration of normal saline to restore fluid balance.

Correct Answer: A

Rationale: High-protein meals and snacks are essential for children with cystic fibrosis due to their increased nutritional needs. Protein helps in maintaining muscle mass and overall health in individuals with cystic fibrosis, making it crucial to include in their diet.