<prompt> The effective dose of a Chest x-ray is ___.0.02 mSv0.2 mSv0.05 mSv0.1 mSv  <response>: The effective dose of a CXR is 0.02 mSv. Radiation dose of a chest CT 8mSvis 400 times more than a chest X-ray. TYPICAL EFFECTIVE DOSES Investigation Dose mSv PA view CXR 0.02 Skull APLat 0.06 AP pelvis 0.7 AXR 0.7 Lumbar spine 1 CT brain 2 IVU 2.5 Barium meal 3 Bone scan 3 Barium enema 7 CT abdomen 10 Thallium scan 20 