Janie,
Check your other messages, I've been communicating with you.
Now about the stent. If the doctor put in 2 stents I'm sure one was in the right hepatic duct and one was in the left hepatic duct. You say one was found in your mothers stool...I'm sure this mean one slipped down through the common bile duct into the small intestine and through the large bowel and out.
This doesn't sound good at all. With the stent gone the duct may collapse and restrict the bile flow causing a backup into the liver thus causing an infection with a high fever and possible body chills...this is not good.
I would pray, But I would also get you mother ASAP to your local ER advise them of the situation, give them her doctors name...I'm sure they will want your mom to see the IR doctor and have the stent replaced.
Do not wait for the jaundice, fever's or itching to return, you're playing with fire. Do not wait for anything to happen...be pro-active and protect your mother
Leonard