A professional who administers medical aid to personnel aboard submarines, small ships, and isolated areas in absence of or under supervision of medical superior. Responsibilities include:

• Examines patients and diagnoses condition.
• Prescribes medication to treat condition of patient.
• Inoculates and vaccinates patients to immunize patients from communicable diseases.
• Treats cuts and burns, performs minor surgery and administers emergency medical care to patients during emergency situations in absence of superior.
• Inspects food and facilities to determine conformance to sanitary regulations.
• Recommends necessary measures to ensure sanitary conditions are maintained.
• Records, transcribes, and files medical case histories.
• Prepares requisitions for supplies, services, and equipment.