Produce ultrasonic recordings of internal organs for use by physicians.

Conduct tests on pulmonary or cardiovascular systems of patients for diagnostic purposes. They conduct or assist in electrocardiograms, cardiac catheterizations, pulmonary functions, lung capacity, and similar tests. Includes vascular technologists.

Clean teeth and examine oral areas, head, and neck for signs of oral disease. They educate patients on oral hygiene, take and develop x rays, or apply fluoride or sealants.

Perform routine medical laboratory tests for the diagnosis, treatment, and prevention of disease. They work under the supervision of a medical technologist.

Prepare histologic slides from tissue sections for microscopic examination and diagnosis by pathologists. They assist in research studies.

Stain, mount, and study cells to detect evidence of cancer, hormonal abnormalities, and other pathological conditions following established standards and practices.

Analyze chromosomes found in biological specimens such as amniotic fluids, bone marrow, and blood to aid in the study, diagnosis, or treatment of genetic diseases.

Diagnose, treat, and help prevent diseases using a system of practice that is based on the natural healing capacity of individuals. They use physiological, psychological or mechanical methods. They also use natural medicines, prescription or legend drugs, foods, herbs, or other natural remedies.

Provide treatment of symptoms and disorders using needles and small electrical currents. They provide massage treatment. They also provide preventive treatments.

Diagnose and treat severe, episodic, or chronic illness, independently or as part of a healthcare team. They focus on health promotion and disease prevention. They order, perform, or interpret diagnostic tests such as lab work and x rays. They prescribe medication and must be registered nurses who have specialized graduate education.