1 National Council on Radiation Protection (NCRP). 2  Examines the literature on biological effects of exposure to modulated radiofrequency (RF) energy to determine whether present exposure standards and guidelines need to be modified further to take modulation into account.
Vasoconstriction. by admin Leave a Comment. Vasoconstriction is the process of constriction of blood vessels, which may result in decrease of flow of blood. Normal blood flow is necessary for carrying oxygenated blood to all parts of the body and when the normal flow is disrupted it may cause various problems.our doctor should find out the underlying factors that cause vasoconstriction before giving treatment. He may prescribe alpha adrenoreceptor antagonist (which is a vasodilator) for reducing the constriction of blood vessels and increasing blood flow.
*Slight increase in aortic pressure due to elastic recoil of the stretched aorta. *Rapid decrease in ventricular pressure as the ventricle continues to relax and its elastic recoil will even produce a slight vacuum in the ventricle.