Always change gloves if the gloves get ripped, torn, or contaminated. Contamination can occur after using the bathroom, smoking, coughing, sneezing, and in between preparing raw and cooked foods. Food worker hands must be washed thoroughly and be cleaned before wearing new gloves.
The term you are looking for is glass cliff
First off you should take them to the nearest hospital. If they are still talking and breathing well this means that the food or whatever is lodged in their esophagus. From what I've learned do not do the hiemlich maneuver because that can make it worse. This actually happened to my brother last week and he is now fine. I hope this helped you!
Both should increase, moreso the systolic