Schrader valves, seen on mountain bikes, kidsâ bikes and all types of casual riding bikes, are the same valve type you will see on automobile tires. The valve body is shorter than that of a Presta, and the depressible pin sits inside the valve stem rather than on top of it.
Papilledema refers to swelling of the optic disc from increased intracranial pressure (ICP)]. It must be distinguished from optic disc swelling from other causes which is simply termed optic disc edema. Papilledema must also be distinguished from pseudo-papilledema such as optic disc drusen. Since the root cause of papilledema is increased intracranial pressure (ICP) this is an alarming sign which may presage such entities as brain tumor, CNS inflammation, or idiopathic intracranial hypertension (IIH). Etiology
Pulmonary edema is a condition in which the lungs fill with fluid. When this occurs, the body struggles to get enough oxygen. The most common cause of pulmonary edema is congestive heart failure.Heart failure is characterized by the heart no longer being able to pump blood properly throughout the body. In pulmonary edema, the heart works harder to push blood through the body. This puts added pressure on the small blood vessels of the lungs.In order to relieve this growing pressure, the vessels release fluid into the lungs.n pulmonary edema, the heart works harder to push blood through the body. This puts added pressure on the small blood vessels of the lungs. In order to relieve this growing pressure, the vessels release fluid into the lungs.