Blood carboxyhaemoglobin changes during tobacco smoking.
作者信息
Russell M A
出版信息
Postgrad Med J. 1973 Oct;49(576):684-7. doi: 10.1136/pgmj.49.576.684.
Abstract
Using multiple samples collected via an indwelling venous cannula changes in blood carboxyhaemoglobin (COHb) were studied in five subjects before, during and up to 2½ hr after smoking. On average the smoking, with inhalation, of one cigarette in 6½ min raised the% COHb by 1·6, compared with 2·2 for 24 min of inhaled cigar smoking and only 0·2 for 20 min of non-inhaled pipe smoking. It is suggested that it may be paradoxically safer to smoke high rather than low nicotine cigarettes as those with a high nicotine content will tend to be inhaled less.
摘要
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