When a person is very sick or seriously injured and needs immediate help, he must use emergency medical services. These services employ specially trained people and specially equipped centers.
That is why if they are used for routine checks, it would be using resources that should actually be used for medical emergencies, such as heart attacks and injuries.
Well cholesterol comes from saturated fats that are found in eggs,dairy and meat products. Since peanut butter does not have any of that in it, it will have no cholesterol
