Well.... it's definitely not C or D.
It's B.
A CBC is not going to tell you very much because its a complete blood count meaning that it could be testing for your WBC, Platelets, all that stuff and none of that is useful to us when we are testing someone who has suspected asthma
Answer: D. PFT
Explanation: Not all patients with asthma will have the same symptoms, and not all people who have those symptoms have asthma. There are other conditions that can cause patients to experience these symptoms. The best way for a physician to diagnose asthma is to obtain a thorough medical history and order pulmonary function tests (PFTs)... PF
