A client is admitted with suspected pneumonia from the emerg…

A client is admitted with suspected pneumonia from the emergency department. The client went to the primary health care provider a “few days ago” and shows the nurse the results of what the client calls “an allergy test,” as shown below: The reddened area is firm. Based on the client’s presentation, the nurse anticipates which diagnostic test the primary health care provider will most likely order to confirm the diagnosis?