Meaning of reading of chest x-ray
2 Meaning of reading of chest x-ray
A reading, of a chest x-ray, is a process in which a qualified reader—
assesses the x-ray for the appearance of opacities; and
decides, in accordance with the ILO classification guidelines, the category in table 1, column 1 (the category) that applies to the appearance of opacities in the x-ray; and
records the category decided under paragraph (b).
| Column 1 Category | Column 2 Score |
|---|---|
| 0/- | 0 |
| 0/0 | 0 |
| 0/1 | 0 |
| 1/0 | 15 |
| 1/1 | 20 |
| 1/2 | 25 |
| 2/1 | 50 |
| 2/2 | 55 |
| 2/3 | 60 |
| 3/2 | 75 |
| 3/3 | 80 |
| 3/+ | 85 |
| Category A | 90 |
| Category B | 95 |
| Category C | 100 |
In this section—
opacity means—
a small opacity within the meaning of the ILO classification guidelines; or
a large opacity within the meaning of the ILO classification guidelines.
qualified reader means a doctor who is qualified and competent to categorise, in accordance with the ILO classification guidelines, the appearance of opacities in a chest x-ray.
Example—
a doctor approved as a B Reader by the National Institute for Occupational Safety and Health
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