a preschooler client with a diagnosis of upper respiratory...

a preschooler client with a diagnosis of upper respiratory infection has been receiving aspirin as an antipyretic. it is most important for the nurse to monitor for which adverse effect

1,  vomiting and lethargy 

2, constipation and thirst 

3, ear pain and cough

4, tachycardia and headache 

Answer: 4, tachycardia and headache