Example 2: Moment of Inertia of a disk about an axis passing through its circumference Problem Statement: Find the moment of inertia of a disk rotating about an axis passing through the disk's circumference and parallel to its central axis, as shown below.
In middle-aged adults, aldosteronism is the most common secondary cause of hyperten-. sion, and the recommended initial diagnostic test is an aldosterone/. renin ratio. Up to 85 percent of children with hypertension have an. identifiable cause, most often renal parenchymal disease.
Heart valve conditions, such as mitral stenosis (a narrowing of the mitral valve), can also cause secondary PH. Fixing the valve usually reverses the PH. Pulmonary Hypertension in Children. Some children with congenital heart disease have high blood pressure in their lungs. This is called pulmonary hypertension.