A nurse is reviewing the laboratory values of an eight-month-old infant who is newly diagnosed with leukemia. Their most recent platelet count is 120,000/mm3 (200,000 to 475,000/mm3). Which of the following provider prescriptions should the nurse anticipate?

A. A child who is postoperative following a tonsillectomy and reports moderate throat pain.

While postoperative pain management is important, moderate throat pain in a child who has undergone a tonsillectomy is expected. This client's condition is stable, and their pain can be managed with appropriate interventions. It is not the most urgent situation among the options provided.

B. A child who had a cardiac catheterization using the femoral artery and has blanching of the toes.

Blanching of the toes following a cardiac catheterization using the femoral artery can indicate compromised circulation, potentially leading to ischemia or necrosis. This requires immediate assessment to prevent further complications.

C. A child who has bacterial pneumonia and is due for their initial dose of IV antibiotics.

While timely administration of antibiotics is important in the treatment of bacterial pneumonia, missing the initial dose by a short period of time is not likely to result in significant harm compared to a potential circulatory compromise in option B.

D. A child who has juvenile idiopathic arthritis and needs assistance with the application of prescribed splints.

While providing assistance with splint application is necessary for comfort and mobility, it is not as urgent as assessing potential circulatory compromise or initiating antibiotic therapy for pneumonia.

A. Coarctation of the aorta

Coarctation of the aorta involves a narrowing of the aorta, leading to decreased blood flow to the lower body. It is not associated with increased pulmonary blood flow.

B. Patent ductus arteriosus

Patent ductus arteriosus (PDA) is a congenital heart defect where the ductus arteriosus, a fetal blood vessel that usually closes shortly after birth, remains open. This allows blood to flow from the aorta into the pulmonary artery, increasing pulmonary blood flow. Therefore, option B is correct.

C. Tetralogy of Fallot

Tetralogy of Fallot is a congenital heart defect characterized by four abnormalities, including a ventricular septal defect (VSD), pulmonary stenosis, right ventricular hypertrophy, and an overriding aorta. While it can lead to cyanosis due to right-to-left shunting, it is not primarily associated with increased pulmonary blood flow.

D. Tricuspid atresia

Tricuspid atresia involves the absence of the tricuspid valve, leading to a lack of direct blood flow from the right atrium to the right ventricle. It usually presents with decreased pulmonary blood flow rather than increased pulmonary blood flow.