A Nurse Is Caring for a Client Who May Be

A nurse is caring for a client who may be experiencing an allergic response to medication.The nurse bases the assessment on which information?
Select all that apply.

A) Signs and symptoms of drug allergy range from minor to life threatening.
B) Drug allergy symptoms may appear the same as common allergies to other substances,such as environmental triggers.
C) It is important to determine the source of the allergy.
D) Nausea and vomiting are the most common drug allergy symptoms.
E) Drug allergies require previous exposure.