Table 4 Frequency distribution of responses to different level of radiation (n = 99)
Procedure | Number of units equivalent to a chest X-ray (a chest X-ray = 1 unit) | ||||||
|---|---|---|---|---|---|---|---|
0–20 | 21–50 | 51–100 | 101–200 | 201–500 | >500 | Do not know | |
CT abdomen | 1 (1%) | 9(9%) | 12(12%) | 25(25%) | 22(22%) | 13(13%) | 17(17%) |
CT lumbar spine | 1 (1%) | 11(11%) | 16(16%) | 29(29%) | 16(16%) | 8 (8%) | 18(18%) |
MRI brain | 72(73%) | 5(5%) | 4(4%) | - | 1(1%) | - | 17(17%) |
X-ray lumbar- spine | 61(62%) | 16(16%) | 3(3%) | 2(2%) | 2(2%) | - | 15(15%) |
Ultrasound -kidneys | 84(85%) | - | - | - | - | - | 15(15%) |