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.

A. Instruct the client to cough. Coughing is generally encouraged after chest physiotherapy to help expel loosened secretions, but it is not the first action. The bronchodilator should be administered first to maximize the effectiveness of the chest physiotherapy.

B. Perform vibration while the client exhales slowly through the nose. Vibration is a component of chest physiotherapy used to help loosen secretions during exhalation, but it is performed after the bronchodilator is administered and once the client is positioned properly.

C. Percuss the upper posterior chest.Percussion helps to mobilize secretions but is typically done after the bronchodilator has been administered to allow for more effective airway clearance.

D. Administer albuterol by nebulizer.Administering albuterol first dilates the airways, making it easier to mobilize and clear secretions during percussion, vibration, and postural drainage.

A. "Has your son had a sore throat recently?"

This question is relevant because acute rheumatic fever often occurs as a complication of untreated or inadequately treated streptococcal throat infection (strep throat). A recent history of sore throat could indicate a preceding streptococcal infection, which is an important predisposing factor for the development of acute rheumatic fever.

B. "Was your son born with this cardiac defect?"

This question is less relevant in the context of acute rheumatic fever. Acute rheumatic fever is not a congenital heart defect; it is an inflammatory condition that affects the heart valves following streptococcal infection. While it's important to assess the child's cardiac health, asking about congenital heart defects may not directly relate to the current condition.

C. "Are you aware that your son will have to be in isolation?"

This question is not applicable to acute rheumatic fever. Acute rheumatic fever is not a contagious condition that requires isolation. It is an autoimmune response triggered by streptococcal infection and does not pose a risk of transmission to others.

D. "Has your child had any injuries recently?"

Inquiring about recent injuries is not directly related to acute rheumatic fever. Acute rheumatic fever is an inflammatory condition primarily triggered by streptococcal infection and is not caused by physical injuries.