In an emergency, EMTs are typically dispatched to the scene by a 911 operator and often work with police and fire department personnel. Once they arrive, they determine the nature and extent of a patients condition while trying to ascertain whether the patient has preexisting medical problems.
Platelet endothelial cell adhesion molecule (PECAM-1) also known as cluster of differentiation 31 (CD31) is a protein that in humans is encoded by the PECAM1 gene found on chromosome 17.PECAM-1 plays a key role in removing aged neutrophils from the body.D31 is also expressed in certain tumors, including epithelioid hemangioendothelioma, epithelioid sarcoma-like hemangioendothelioma, other vascular tumors, histiocytic malignancies, and plasmacytomas.
A CD Writer can write new CD's using CD-R discs only once. A CD ReWr â¦ iter can burn CD's to CD-R discs once, or can burn to CD-RW dics multiple times. A DVD drive can do everything a CD drive can do, and also read DVD discs (approximately 4.2 GB) while a DVD Burner can burn DVD's to DVD-R discs and DVD+R discs. CD/DVD Combo's are self explanatory.