Code of Massachusetts Regulations › 540 CMR - REGISTRY OF MOTOR VEHICLES › Title 540 CMR 24.00 - Medical Qualifications For Operators Of Motor Vehicles › Section 24.02 - Definitions

Current through Register 1525, July 5, 2024
In
				540 CMR 24.00, the following
				definitions apply:
AHA Class I
: The American Heart
				Association (AHA) functional guidelines for classifying heart disease: patients
				with cardiac disease, but without resulting limitation of physical activity.
				Ordinary physical activity does not cause undue fatigue, palpitation, dyspnea,
				or anginal pain.
AHA Class II
: The American Heart
				Association (AHA) functional guidelines for classifying heart disease: patients
				with cardiac disease resulting in slight limitation of physical activity. They
				are comfortable at rest. Ordinary physical activity results in fatigue,
				palpitation, dyspnea, or anginal pain.
AHA Class III
: The American Heart
				Association (AHA) functional guidelines for classifying heart disease: patients
				with cardiac disease resulting in marked limitation of physical activity. They
				are comfortable at rest. Less than ordinary activity causes fatigue,
				palpitation, dyspnea, or anginal pain.
AHA Class IV
: The American Heart
				Association (AHA) functional guidelines for classifying heart disease: patients
				with cardiac disease resulting in inability to carry on any physical activity
				without discomfort. Symptoms of heart failure or the anginal syndrome may be
				present even at rest. If any physical activity is undertaken, discomfort is
				increased.
Bioptic Telescopic Lens
: A particular
				system of lenses which uses magnification as the principal means of obtaining
				visual acuity for one eye. Such system must be afocal and suited for optical
				infinity.
Carrier Lens
: A lens in which a
				telescopic device is mounted. It may or may not have a refractive
				correction.
Corrective Lens
: A lens which corrects
				a refractive condition in the eye. A corrective lens, as used in
				540 CMR 24.00, does not
				include bioptic telescopic lenses (except that a "corrective lens (B)"
				restriction must be imposed on any license or learner's permit issued to a
				person using a bioptic telescopic lens).
Episode
: A seizure, syncope, or any
				other form of altered consciousness which will or may affect the safe operation
				of a motor vehicle.
FEV-1
: The forced expiratory volume,
				in liters, of O2 that a person can breathe out in one
				second. This amount is usually expressed in liters with 4.00 liters
				representing the normal amount.
Functional Impairment
: Any symptom of
				a disease or medical condition that results in full or partial decrease in any
				or several sensory or motor functions including but not limited to peripheral
				sensation of the extremities, strength, flexibility, motor planning and
				coordination.
Health Care Provider
: A registered
				nurse, licensed practical nurse, physician, physician assistant, psychologist,
				occupational therapist, physical therapist, optometrist, ophthalmologist,
				osteopath or podiatrist who is a licensed health care provider under M.G.L. c.
				112.
Physician
: A medical doctor who is
				licensed to practice in the Commonwealth of Massachusetts.
O2
Saturation
				Level
: The amount of oxygen "O2" that one
				vial of blood contains. This amount is usually described as a percentage with
				100% representing the normal amount.
Self-care
: The ability to perform the
				functions of daily living and of survival, such as feeding oneself, toilet
				functions, bathing, dressing, and so on.