Depends where one works within the dept.
As in any area of potential exposure, the goal is to keep exposure to a minimum, whether you work in the Nuclear med area (being exposed to "hot" pts is a risk), CT, etc.
Cath Lab/Angio area can be particularly high exposure area, especially if one is involved doing EP studies/ablations or biventricular ICDs/pacemakers.
Lead aprons are worn by all in the room (any fluoro or Xray exposure, not Nuc med).
Every person who will potentially be exposed to radiation is issued a radiation badge.
The badge is worn daily and its innards changed monthly.
The inner part collects any radiation exposure and when it is returned to the company they measure how much radiation exposure has occurred.
A report is generated to the department, showing monthly and cumulative radiation exposure.
That said, I have worked IR/Radiology for over 25 yr.
Went thru two pregnancies, two normal births (dept worked with me to help thoroughly reduce exposure while I was pregnant, especially in the first trimester).
Have never had high exposure readings.
One must be informed and aware, and protect oneself.
PM me if you have further questions.