How do the elements in Groups 5A, 6A, & 7A form ions? They gain electrons to achieve noble gas configuration and form anions with a negative charge. What is the formula unit of Aluminum oxide?
Distal anhidrosis, although often subclinical, is detectable by clinical sudomotor testing in many patients with peripheral neuropathy. Diabetes mellitus, the most common cause of autonomic neuropathy in the developed world, typically impairs thermoregulatory sweating in a stocking and glove distribution. As the neuropathy progresses, asymmetric truncal anhidrosis or global anhidrosis may develop.
Aortic aneurysms may be caused by: 1  Atherosclerosis, or hardening of the arteries, which weakens arterial walls. 2  Hypertension (high blood pressure). 3  Local injury to the artery. 4  Congenital abnormality. 5  Aging. 6  Syphilis used to be a common cause of thoracic aneurysms, but it is no longer as common.