I've gone through a vein and had oil seep back into it , I got flushed and serious cough for an hr or so. I asperated and got a bubble and was good to go , about 30 seconds after i pulled it out i felt warm and flushed and strated coughing in about an min for so.
the oil in the blood isint going to affect your heart directly but its not mixed with the blood to be absorbed like other IV meds , so its when it gets to your lungs is the problem , it settles their and the body produces fluid to try to get it out because its seen as a foreign substance and it wants it out.