NURSE-UN 1435 Study Guide - Midterm Guide: Primary Polydipsia, Hyponatremia, Syndrome Of Inappropriate Antidiuretic Hormone Secretion
17 Oct 2018
School
Department
Course
Professor
Document Summary
Hypovolemic (decreased serum sodium with decreased ecf volume) Repeated irrigation of body cavities with sodium-free solutions. Nursing care limiting water intake or discontinuing medications that contribute to siadh may be sufficient. The administration of a saline solution orally or intravenously may be needed when hyponatremia is caused by sodium deficiency. Symptomatic hyponatremia (i. e. , neurologic manifestations) is often treated with hypertonic saline solution and a loop diuretic, such as furosemide, to increase water elimination. This combination allows for correction of plasma sodium levels while ridding the body of excess water. There is concern about the rapidity with which plasma sodium levels are corrected, particularly in people with chronic symptomatic hyponatremia. It takes several days for brain cells to restore the osmolytes lost during hyponatremia. Thus, treatment measures that produce rapid changes in serum osmolality may cause a dramatic change in brain cell volume.
