Search PubMed⌕ Search

Biomedical subjects

F Gyntelberg

Publications and source records attributed to F Gyntelberg.

At least 181 records · Page 10Linked to original sources
PubMedDate not supplied

Indoor dust exposure: an unnoticed aspect of involuntary smoking.

The nicotine concentration in samples of house dust from the homes of 34 smokers and 38 nonsmokers was analyzed using a gas chromatographic method. A strong positive correlation (r = .65, p less than .0001) between the amount smoked and the nicotine concentration in the house dust was found when the results from all homes were analyzed, and a fairly strong positive correlation (r = .35, p less than .05) was found for smokers' homes only. These data suggest that the nonsmoker may inhale tobacco constituents from respirable dust, even if smoking does not occur. The amount of nicotine inhaled during 1 h was estimated for someone in one of the homes where there was a high nicotine concentration in the house dust. The calculated amount, 12 ng, is very small compared with the amount inhaled when active smoking occurs (i.e., 600-3,000 ng/h). In this study, nicotine was a marker of tobacco pollution. Assuming that other tobacco smoke agents have a similar or smaller affinity to house dust as that of nicotine, we conclude that house dust inhalation constitutes only a modest additional source of involuntary smoking.

Air Pollutants↗
PubMedDate not supplied

Auscultatory measurement of blood pressure performed by the doctor on duty.

A review is presented of the measurements of blood pressure on admission of 600 patients to the wards in a department of general medicine. Three doctors each examined 200 patients, distributed over two periods with an interval of one year. Large differences were found between the doctors as regards the distribution of the BPs, particularly the diastolic pressures. On the other hand, no differences were observed in the distributions during the two periods as far as the individual doctors were concerned. Great preference was shown for zero as the terminal digit and also for certain BP values. It is concluded that the observer introduces a considerable subjective factor in measuring the BP by auscultation. Correct performance of this simple procedure requires meticulous instruction.

Attitude↗