mechanisms monitored maintain fluid balance body quizlet

What mechanisms are monitored to maintain the appropriate fluid balance in the body quizlet?

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Causes: 1. Excessive Na+ intake: IV fluids, IV Na+ bicarbonate, hypertonic tube feedings, near drowning in salt water
2. Inadequate H2O intake: cognitive impairment
3. Excessive H2O loss: insensible losses, diarrhea, osmotic diuretic
4. Disease states: diabetes inspidus, DM, Cushing disease, hyperaldosteronism

*Results from either a decrease in Na+ excretion decreased water intake, or increased water loss
*Cells shrink as water is pulled to the hypertonic ECF and cellular dehydration occurs

Decreased ECF SxS: Restlessness, agitation, twitching, seizures, intense thirst, dry swollen tongue, orthostatic hypotension, decreased CVP, weight loss, flushed skin, increased pulse, possible lethargy/ weakness

Normal/ Increased ECF SxS: Restlessness, agitation, twitching, seizures, weight gain, peripheral, pulmonary edema, increased CVP, increased BP
****More excitable-depending on volume

Treatment: infusion of hypotonic IV solution (0.45% NS or D5S)
-encourage adequate water intake
-Loop diuretics (Lasix, Edecrin, Bumex to increase output)

Nursing Care: Monitor I&O & serum Na+ levels
-Monitor LOC
-Provide oral care
-Monitor VS and daily weights
-Na+ restrictions especially if patient is in renal failure

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What mechanisms are monitored to maintain the appropriate fluid balance in the body?

The body's homeostatic control mechanisms, which maintain a constant internal environment, ensure that a balance between fluid gain and fluid loss is maintained. The anti-diuretic hormones vasopressin (ADH) and aldosterone play a major role in this.

What are the mechanisms that maintain body fluids?

Body fluids are mainly water and electrolytes, and the three main organs that regulate fluid balance are the brain, the adrenal glands and the kidneys (Tortora and Grabowski, 2002).

Which mechanism regulates fluid intake in the body quizlet?

Fluid intake i s regulated by the thirst mechanism, it is located within the hypothalamus, the thirst control is stimulated by intracellular dehydration and decreased blood volume.

How does sodium maintain appropriate fluid balance in the body quizlet?

Sodium is controlled by several mechanisms in the body such as: -Osmoreceptors in the brain when too much sodium is in the ECF, and this message initiates the thirst mechanism. -The hypothalamus stimulates the pituitary gland to release ADH (helps retain body fluids).

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