Respiratory therapists work under a physician’s supervision to take care of patients with lung problems. The patients might have chronic asthma or have suffered a heart attack, stroke or other disease or illness.

A cardiovascular technologist assists with the diagnosis and treatment of heart issues. They conduct tests on pulmonary or cardiovascular systems of patients for diagnostic purposes. They may conduct or assist in electrocardiograms, cardiac catheterizations, pulmonary functions, lung capacity, and similar tests.

Nurse practitioners diagnose and treat both sudden and long-term conditions. They may do physical exams, physical therapy or order tests and therapies for patients. NPs order, perform or interpret results of blood tests, EKGs and X-rays. They use these tools, along with patient symptoms and medical history to develop the right diagnosis.