Abstinence from smoking and expired-air carbon monoxide levels: lactose intolerance as a possible source of error.
نویسندگان
چکیده
We investigated a possible source of contamination of expired-air carbon monoxide (CO) readings on CO monitors from raised expired-air hydrogen (H2) levels, namely lactose intolerance, the norm in certain ethnic groups. A significant correlation between expired-air CO and H2 readings was observed in four non-smoking lactose maldigesters.
منابع مشابه
[Results of a comprehensive workplace program for the prevention and treatment of smoking addiction].
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BACKGROUND It has been proposed that the expired-air carbon monoxide (CO) threshold for confirming smoking abstinence in clinical practice be reduced below 10 ppm. Optimal thresholds may vary across regions. Data are needed to assess the impact of such a change on claimed success. METHODS A total of 253 smokers who attended the Tanglin quit smoking clinic in Malaysia were followed-up 1, 3 and...
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Analysis of the carbon monoxide content of expired air is now a frequently used technique in population studies. Its close correlation with the blood concentration of carboxyhaemoglobin was first demonstrated by Jones, Ellicott, Cadigan, and Gaensler in 1958. Studies in the United Kingdom (Tyrer, 1964) and the United States (Ringold et al., 1962; Goldsmith, Schuette, and Novick, 1963) have show...
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The present study was undertaken to evaluate objective measures of the smoking status of head and neck cancer patients during the course of radiotherapy. This was done by conducting a weekly structured interview, and measurement of carbon monoxide in expired air and of serum concentration of cotinine, the major metabolite of nicotine. These methods were tested prospectively in a series of 20 pa...
متن کاملTemporal and probability discounting by cigarette smokers following acute smoking abstinence.
INTRODUCTION Given the lack of consensus regarding changes in temporal and probability discounting as a function of smoking abstinence in cigarette smokers, the present study comprehensively examined possible changes in these processes following a period of acute smoking abstinence consistent with elevated withdrawal symptoms and craving. METHODS Computerized temporal and probability discount...
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عنوان ژورنال:
- American journal of public health
دوره 80 9 شماره
صفحات -
تاریخ انتشار 1990