A nurse is caring for a school-age child who is taking valproic acid. The nurse should expect the provider to order which of the following diagnostic tests?

- A. This choice is correct because a child who has autism spectrum disorder often exhibits strict adherence to routines and rituals, and may become distressed or agitated when there are changes or disruptions to their usual patterns.

- B. This choice is incorrect because difficulty paying attention to tasks is not a specific manifestation of autism spectrum disorder, but rather a common symptom of attentiondeficit/hyperactivity disorder (ADHD). A child who has autism spectrum disorder may have difficulty focusing on tasks that are not of interest to them, but may also show intense concentration on tasks that are of interest to them.

- C. This choice is incorrect because disobedience to authority figures is not a specific manifestation of autism spectrum disorder, but rather a common behavior problem in children and adolescents. A child who has autism spectrum disorder may have difficulty understanding social cues and expectations, but may also show compliance and cooperation when given clear instructions and positive reinforcement.

- D. This choice is incorrect because excessive anxiety when separated from parents is not a specific manifestation of autism spectrum disorder, but rather a common symptom of separation anxiety disorder. A child who has autism spectrum disorder may have difficulty forming attachments and expressing emotions, but may also show affection and attachment to familiar people.

A. Assess peripheral circulation hourly. This is correct because clients with SCD are at risk of vaso-occlusive crisis, which can impair blood flow to the extremities and cause tissue ischemia and necrosis. The nurse should monitor for signs of poor circulation such as pallor, coolness, numbness, or pain.

B. Assess the client's mouth every 8 hr. This is correct because clients with SCD are prone to oral ulcers, infections, and dental problems due to chronic anemia and reduced oxygen delivery to the oral mucosa. The nurse should inspect the mouth for lesions, bleeding, inflammation, or infection and provide oral hygiene as needed.

C. Use humidification with oxygen therapy. Administer IV fluids. This is correct because clients with SCD need adequate hydration and oxygenation to prevent sickling of red blood cells and further complications. Humidification helps moisten the airways and prevent dehydration of the mucous membranes. IV fluids help maintain fluid and electrolyte balance and reduce blood viscosity.

D. Raise the knee position on the client's bed. This is incorrect because this can impede venous return and worsen peripheral circulation. The nurse should keep the client's extremities in a neutral position and avoid tight or restrictive clothing or devices.

E. Use an automated blood pressure cuff on the client's arm. Prepare for platelet transfusion. This is incorrect because this can cause mechanical trauma to the arm and trigger a vasoocclusive crisis. The nurse should use a manual blood pressure cuff and avoid applying pressure to the arm. Platelet transfusion is not indicated for clients with SCD unless they have thrombocytopenia or bleeding.