Increased intra-cranial tension is related to:
Ans. (c) Hypertension and BradycardiaRef: Harrison 18th edition, chapter 25* Cushing's reflex = a hypothalamic response to brain ischemia wherein the sympathetic nervous system is activated which causes increased peripheral vascular resistance with a subsequent increase in BP.* The increased BP then activates the parasympathetic nervous system via carotid artery baroreceptors, resulting in vagal-induced bradycardia.* The brain ischemia that leads to cushings reflex is usually due to the poor perfusion that results from increased ICP due to head bleeds or mass lesions.* Cushing's reflex leads to the clinical manifestation of Cushing's triad.* Cushing's triad = hypertension, bradycardia, and irregular respirations (Cheyne-Stokes breathing).* Cushing's triad signals impending danger of brain herniation, and thus, the need for decompression. Consider administering mannitol, hyperventilation, and elevation of the head of bed as temporizing measures
Hyotension and tachycardia
Hypertension and tachycardia
Hypertension and bradycardia
Hypotension and bradycardia
Cerebrovascular