The nurse is teaching cardiovascular risk factors to a group of older adults. The nurse stresses that cigarette smokers are four times more likely to die of sudden cardiac death than nonsmokers because smoking
a. interferes with the development of colla-teral coronary vessels.
b. produces coronary artery stricture.
c. results in carbon monoxide poisoning.
d. increases platelet aggregation.
D
Smoking increases platelet aggregation and causes coronary artery spasms. Nicotine increases blood pressure and cardiac demands. Carbon monoxide in tobacco smoke decreases the oxy-gen-carrying capacity of the blood. Smoking does not interfere with collateral circulation or produce strictures, but it may contribute to higher levels of carbon monoxide in the blood.
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1. evoked potentials 2. Electroencephalogram 3. CT scan 4. lumbar puncture
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