The vast majority of persons with (COPD) have a history of
A) smoking.
B) exposure to industrial chemicals.
C) exposure to air pollution.
D) allergies.
A
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_________ is a method of prioritizing the importance of phone calls.
Fill in the blank(s) with the appropriate word(s).
Answer the following statement(s) true (T) or false (F)
1. Electronic items, batteries, and fluorescent lights should be disposed of in the regular trash. 2. Fibers from asbestos can lodge in the lungs and cause a type of lung cancer called asbestosis. 3. Mercury is a naturally occurring metal that affects the nervous system and may damage the brain. 4. Biomagnification occurs when larger animals eat smaller animals. 5. Gamma radiation causes cancer, sterility, and chromosomal damage at low exposure levels. 6. Radon is a radioactive gas found in certain soils, rocks, and natural building materials. 7. Noise pollution can cause hearing loss and stress-related illnesses. 8. The pain threshold for sound intensity (loudness) is 80 decibels.
The root words DENT/O and ODONT/O both mean tooth.
Answer the following statement true (T) or false (F)
Decubitus ulcers are caused by
A. Pressure on a bony projection for a prolonged period of time cuts off the blood supply to an area of skin and an ulcer forms. B. An allergenic agent that irritates the skin and the decubitus ulcer is formed. C. An infestation of the skin with mites that itch; the scratching causes ulcers. D. A tumor that starts in the lower layers of the skin and opens up to the surface causing a decubitus ulcer. E. A caustic chemical such as an acid that gets on the skin and causes the ulcer.