I, to, struggled with this. I think theres dirty work involved with both. Doing ultrasounds, you might be in the situation of having to clean someone up. And I think ultrasound is almost as invasive as a nurse. Do you know where the probe can enter? I just think your heart has to be in 100% either way you go. I think it takes a very compassionate and empathetic to be a nurse. Instead of thinking...ill I dont wanna clean someones feces off of them.... you have to think....I gotta hurry and get this off of them b/c tgey have got to be so uncomfortable.