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CISDOC database
| Document ID (ISN) | 30582 |
| CIS number |
79-41 |
| ISSN - Serial title |
0003-0805 - American Review of Respiratory Disease |
| Year |
1978 |
| Convention or series no. |
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| Author(s) |
Kryger M., Aldrich F., Reeves J.T., Grover R.F. |
| Title |
Diagnosis of airflow obstruction at high altitude. |
| Bibliographic information |
June 1978, Vol.118, No.6, p.1055-1058. Illus. 14 ref. |
| Abstract |
Many workers in the US mining industry work at high altitudes (>3,000m). A large molybdenum (hard rock) mine in Colorado (altitude 3,100m) instituted respiratory screening of all newly hired and current employees in 1976. Evaluations included a respiratory questionnaire, spirometry, and a chest X-ray. The authors evaluated all men screened between March 1976 and April 1977 (approximately 1,600 subjects) and then excluded all subjects who had smoked cigarettes, who had a history of lung disease, or whose present or previous job was in an environment of mineral dusts or chemical fumes, leaving 126 nonsmokers believed to be free of lung disease. The authors conclude from the results of measurements (FVC; FEV1; FEV1/FVC, mean forced expiratory flow) that using predicted sea level values for spirometry done at high altitude, underestimation of airway obstruction may result, and established spirometric normal values for an altitude of 3,100m for white men. |
| Descriptors (primary) |
obstructive ventilatory impairment; respirable dust; mining industry; spirometry; high altitude |
| Descriptors (secondary) |
USA; smoking; diagnosis; atmospheric pressure; survey; respiratory function tests; normal values |
| Document type |
- |
| Subject(s) |
Dust, aerosols and related diseases
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| Broad subject area(s) |
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| Browse category(ies) |
Mining and quarrying
Hypobaric pressure
Diseases of the respiratory system (except for pneumoconiosis & similar)
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