NUR 3029 Lecture Notes - Lecture 1: Ventricular Tachycardia, Orthostatic Hypotension, Hypermagnesemia
27 Nov 2017
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Diabetes insipidus/ siadh fatal neurologic dysfunction that results when the normal balance of electrolytes in body by over hydration or dysfunction of adh. Aldosterone regulates na+ and k+ in kidney nephron. <135meq/l of sodium; excess water in relation to sodium in extracellular space. Hyponatremia s/s stupor lethargy weak muscles orthostatic hypotension headache seizures stomach cramping decreased consciousness. >145meq/l of sodium; decrease in water relative to electrolyte content. Hypernatremia s/s fever restlessness decreased urine flushed skin increased blood pressure edema. Hypokalemia low level of k+ in blood serum. Hypokalemia results vomiting diarrhea metabolic alkalosis ventricular tachycardia muscle weakness decreased gut motility decrease insulin release. >5. 5meq/l of potassium in adults caused by renal failure. Hyperkalemia results fatigue bradycardia paralysis cardiac arrest abnormal heart and skeletal muscle function. Hypomagnesemia low levels of magnesium; often associated with hypokalemia or even hypocalcemia if severe. Hypomagnesemia s/s impaired na+/k+ pump increased movement of k+ out of cell cardiac arrhythmias.
