• How to you check to make sure there is circulation when to a limb when treating for a fracture or dislocation

My guess would have to be capillary refill

So that you don't get baby's but also prevents stis such as hiv

You should only go in for less than 10 minutes at a time, or avoid them altogether, especially in the early weeks. studies have shown an increased risk for birth defects in babies of women who had an elevated temperature before 7 weeks of  pregnancy.