Siding Options. The popular choice out there is vinyl because theyâre cost effective and easy to install and maintain. Some things to consider with vinyl is that the color can fade, and the siding become brittle with time. For homeowners who prefer to go with wood, there is hardwood, cypress, clapboard, wood shingles, and plywood siding.
Digestive System. Elevated PTT results may be caused by malabsorption, a digestive problem that restricts the amount of nutrients that the body absorbs from food, according to the U.S. National Library of Medicine.
Abnormal values. 1  A longer-than-normal PTT or APTT can mean a lack of or low level of one of the blood clotting factors or another substance needed to clot blood. 2  This can be caused by bleeding disorders, such as hemophilia or von Willebrand's disease.artial thromboplastin time (PTT) is a blood test that measures the time it takes your blood to clot. The normal values listed here-called a reference range-are just a guide.