My neighbor wears one to go outside for anything at all. Can you imagine? Afraid of fresh air?!

So how does a CT scan tell you your calcium score? I swear they make all this stuff up. I definitely would not do that scan, or any of those things.

Here's what a quick search for "radiation and bone damage* found

Ionizing radiation produces its deleterious biologic effects by both direct (DNA strand breaks) and indirect processes (formation of free oxygen radicals). Mitotically active cells are more susceptible to the detrimental effects of ionizing radiation. These effects are most severe locally within the treatment field but can also occur systemically, possibly reflecting hormonal influences and inflammatory cytokine mediators. Specific bone complications of radiation include osteopenia, growth arrest, fracture and malignancy.

So it the concern is your bone health, they sure have a funny way of assessing it.