Just calm yourself down when you are emotionally distressed
A transvaginal ultrasound is where a probe goes up into the vagina/cervix instead of using the ultrasound jelly and wand on the stomach.
I think it is eustress :) I really hope this helps and you get an A+++++
There is not much oxygen available at such a high altitude. For this reason, oxygen tanks would be necessary for both staff and patients, as both would need to remain at a stable oxygen level in order to survive.
You should go to your doctor and see if you can get tested for heart disease.