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.
The peripheral chemoreceptors and the central chemoreceptors both contribute to causing the hyperventilation (Kussmaul respirations) that accompany metabolic acidosis. This increase in ventilation will lower arterial pCO 2 and this will be sensed by the central and peripheral chemoreceptors and ventilation will be inhibited. Changes in CSF [HCO 3] will occur over about 12 to 24 hours and will return CSF pH towards normal. This will progressively remove the (mostly) central chemoreceptor ...