…dilated pupils can signal severe global ischemia or even herniation of the brain stem. Physiological Basis of the Pupillary Reflex in Cardiac Arrest The pupillary…

…drainage in idiopathic intracranial hypertension and in assessment before shunt surgery. Contraindications Clinical signs of herniation — deep unconsciousness with unreactive pupils, an altered breathing pattern…

…coma, respiratory arrest, brainstem herniation and death. Table 2. Grading of hyponatremia. Hypernatremia Hypernatremia does not cause cardiac arrest. Calcium imbalance Hypercalcemia Definition : P/S…

…of raised intracranial pressure or impending herniation Moderately severe symptoms New confusion Severe headache Persistent nausea Moderately reduced consciousness Marked gait instability The specificity of…