A child with asthma has the following medication ordered: Theophylline 4 mg/kg/dose every 6 hrs. The child weighs 4.69 kg. Calculate the appropriate dose.

Convert the child's weight from pounds (lb) to kilograms (kg):

20 lb × (1 kg / 2.20462 lb) ≈ 9.07 kg

Calculate the total daily dose of cefazolin:

Total daily dose = 30 mg/kg/day × 9.07 kg = 272.1 mg/day

Divide the total daily dose into two equal doses:

Each dose = 272.1 mg / 2 ≈ 136.05 mg

Determine the dose per ml using the available oral suspension concentration:

125 mg/5 ml = 25 mg/ml

Calculate the volume of oral suspension needed for each dose:

Volume per dose = Dose per dose / Concentration per ml

≈ 136.05 mg / 25 mg/ml

≈ 5.44 ml

So, the child should receive approximately 5.44 ml per dose of cefazolin oral suspension.

A. Drink eight glasses of fluid daily: This is crucial advice for patients with sickle cell anemia, as adequate hydration helps prevent sickling of red blood cells and reduces the risk of vaso-occlusive crises. Therefore, this precaution is appropriate and should be included in discharge teaching.

B. Maintain an updated Haemophilus influenzae type b (Hib) immunization: While vaccination is essential for overall health, maintaining Hib immunization is not directly related to sickle cell anemia or vaso-occlusive crises. However, it's still important for the child's general well-being and should be addressed but may not be the priority in discharge teaching for sickle cell anemia.

C. Avoid playground activities at school: Children with sickle cell anemia are at risk of vaso-occlusive crises triggered by dehydration, fatigue, or extreme physical exertion. While playground activities can be strenuous, completely avoiding them may not be necessary. Instead, the child should be educated on the importance of staying hydrated, taking breaks when needed, and avoiding excessive physical strain.

D. Assume postural drainage positions every 6 hours: Postural drainage is not typically indicated for sickle cell anemia or vaso-occlusive crises unless there are specific respiratory complications. This precaution is not relevant to the management of sickle cell anemia and should not be included in discharge teaching for this condition.