A nurse on a pediatric unit is caring for four children. The nurse should use droplet precautions for which of the following children?

A. Continuous monitoring of oxygen saturation is crucial in a vaso-occlusive crisis to detect any signs of hypoxia early, which could exacerbate the crisis and lead to more severe complications. This is important for assessing respiratory status, especially in patients with sickle cell disease who may be at risk for acute chest syndrome.

B. Oral intake should not be restricted during a vaso-occlusive crisis as hydration is important for maintaining adequate blood flow and preventing dehydration.

C. Hydroxyurea is used to reduce the frequency of painful crises in patients with sickle cell disease. It works by increasing the production of fetal hemoglobin, which can help prevent sickle cell crises.

D. Meperidine (Demerol) is an opioid analgesic commonly used to manage severe pain associated with sickle cell crises.

E. Vaccination is important in preventing infections, which can trigger or worsen a vaso-occlusive crisis in individuals with sickle cell disease. Ensuring the pneumococcal vaccine is current helps protect the adolescent from potential infections.

F. Placing the client on strict bed rest can increase the risk of thrombosis and impair circulation.

G. Folic acid supplementation is often recommended for patients with sickle cell disease to support red blood cell production and prevent folate deficiency, which can worsen anemia.

H. Cold compresses are not recommended as they can cause vasoconstriction, worsening the pain and sickling in vaso-occlusive crises. Warm compresses are generally preferred.

A. Low hemoglobin indicates anemia, which is a common side effect of leukemia and its treatment, so it does not necessarily indicate treatment effectiveness.
B. Platelet count within normal range is a positive sign, but it does not directly indicate the effectiveness of treatment for leukemia.
C. Normalization of the RBC count indicates bone marrow recovery, suggesting treatment effectiveness in acute lymphoblastic leukemia.
D. Elevated WBC count is expected in leukemia and may not necessarily indicate treatment effectiveness.