The xlt is simply a trim package designation Ford used. It was used on the trucks and SUV's only. It is, generally speaking, the highest level of creature comforts offered on them with the exception of the Eddie Bauer package. The xlt is simply a trim package designation Ford used. It was used on the trucks and SUV's only.
Hypercholesterolemia (also spelled hypercholesterolaemia also called dyslipidemia) is the presence of high levels of cholesterol in the blood. It is a form of  hyperlipidemia  (elevated levels of lipids in the blood) and hyperlipoproteinemia (elevated levels of lipoproteins in the blood).
Familial hypercholesterolemia is the most common inherited type of hyperlipidemia (high fat or lipid levels in blood). It predisposes to premature arteriosclerosis including coronary artery disease with heart attacks at an unusually young age.