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Nutrition fluid balance regulation
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If GFR is low do to low BP what gets released from the kidneys
renin
What happens to renin as it travels in the blood
combines with angiotensinogen to make angiotensinI
Where does angiotensin I travel to and what happens to it
lungs
ACE converts it to angiotensin II
What are the functions of angiotensin II
vasoconstriction
stimulates thirst
secretes ADH
stimulates adrenal cortex to release Aldosterone
ADH has what effect on the urine
stops it
What does Aldosterone do
makes collecting ducts of the renal tubules reabsorb more water
Once ADH and Aldosterone are activated what will happen to GFR and BP
increases
How else(other than from angiotensin II) can Adosterone be released
osmoreceptors in the brain
What happens once the GFR and BP are within normal ranges
secreation of renin stops
What are accurate measure of intake and output
daily weight
vital signs
mucous membranes
skin assessment
neurological status
What are the types of fluid volume deficits
hypovolemia
dehydration
What fluid volume deficit is from a low ECF
hypovolemia
What type of fluid volume deficit is from a deficit in both ECF and ICF
dehydration
What causes fluid volume deficit
Inadequate fluid intake
Lossing more fluid than intake
Translocation of intravascular fluid to interstital
Starvation
Impaired swallowing
Vomiting
Gastric suction
Diarrhea
Laxative abuse
Diuretics
Hemorrhage
Major burns
Draining wounds
Fever & sweating
Exercise & sweating
Heat & humidity
hyperglycemia
What are the S&S of decreased fluid volume
Decreased urination
Decreased skin elasticity
Dry mucous membranes
Disorientation
Extreme thirst
Nausea
Decreased BP, increased HR
Weight loss
What is the treatment for hypovolemia
treat cause
increase oral intake
IV fluids
control fluid losses
Higher than normal volume of fluid in the intravascular compartment(increased blood volume)
hypervolemia
Excess fluid in the interstitial space often due to increased sodium
May lead to circulatory overload and compromised heart function
edema
What are the causes of excess fluid volumes
Kidney failure
Heart failure
IV administered to fast
Albumin administration
Corticosteroid therapy
Excessive sodium intakek
Pregnancy
What is the treatment for excessive fluid volumes
treat disorder
restict oral fluids
reduce sodium
stop IV or reduce rate
administer diuretics
What are thw types of incresed fluid volume
hypervolemia
edema
What is third spacing
intavascular fluid moving into nonvascular fluid compartment where it is trapped & useless
Third spacing is commonly associated with what
liver disease
albumin deficiency & asceties
What other disease can cause third spacing
liver disease
kidney disease
peritonitis
burns
allergic reactions
Third spacing can lead to what
hypotension and shock from decresaed intravascular fluids
What is the treatment for third spacing
restore circulatory volume
closley monitor for circulatory overload
How would you restore circulatory volume in a patient with third spacing
IV fluids
Blood transfusions
IV albumin
Author
tville01
ID
163100
Card Set
Nutrition fluid balance regulation
Description
Nutrition fluid balance regulation
Updated
2012-07-19T14:43:20Z
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