A doctor may diagnose CWP or silicosis based on the combination of an appropriate history of exposure to coal mine dust or silica, compatible changes in chest imaging or lung pathology, and absence of plausible alternative diagnoses.
举一反三
- A doctor may diagnose CWP or silicosis based on the combination of an appropriate history of exposure to coal mine dust or silica, compatible changes in chest imaging or lung pathology, and absence of plausible alternative diagnoses. A: 正确 B: 错误
- To effectively control the respirable coal and silica dust exposure of mine workers, it is not necessary to identify the sources of dust generation and quantify the amount of dust liberated by these sources.
- The diagnosis of lung tumours with CT imaging methods is routinely used due to: A: a) the small difference in density between the lungs and the tumours B: b) the large contrast between low density, air-filled lung tissue and solid lung tumour masses C: c) the absence of other imaging modalities to diagnose tumours
- Many practical areas of engineering controls designed to mitigate exposure of surface mine workers to all airborne dusts, including silica, are： A: drill dust collection systems B: enclosed cab filtration systems C: controlling dust on unpaved haulage roads D: controlling dust at the primary hopper dump
- Silicosis that develops___years after first exposure to higher concentrations of silica dust. A: <;5 B: 5-10 C: 10-15 D: >;15