Fluid and Electrolytes : 1 Flashcards
(50 cards)
Fluid volume excess/ hypervolemia: too much fluid in the ______.
vascular space
What are the hormonal regulation of fluid volume?
aldosterone
ANP
ADH
where is aldosterone found?
what is its normal action?
adrenal gland (on top of the kidneys)
when the blood volume gets low, aldosterone secretions increase.
RETAIN SODIUM AND WATER, blood volume goes up
Diseases with too much aldosterone?
cushings syndrome
heperaldosteronism (conn’s syndrome)
Diseases with too little aldosterone?
addison’s disease
ANP (Atrial natriuretic peptide) is found?
What is its normal action?
atrium of the heart
it works the opposite of aldosterone
it causes EXCRETION OF SODIUM AND WATER
“ADH , _____.”
h2O
ADH normally makes you retain or release?
retain; WATER ONLY
Too much ADH
SIADH (Retain water, fluid volume excess)
[TOO many letter, TOO much water]
urine is (decreased) concentrated, blood is low (dilute)
Not enough ADH
Diabetes Insipidus (lose water, fluid volume deficit) D---Diuresis (shock)
Urine is dilute and blood is concentrated.
Concentrated makes numbers go UP
Dilute makes numbers go DOWN
For what lab values?
Urine specific gravity
sodium
hemocrit
ADH is found in the _____.
What makes you think of ADH problems?
pituitary gland (attached to the base of the brain)
craniotomy, head injury, sinus surgery, any condition that can lead to an increase ICP can lead to an ADH problem
What is the name for ADH hormone medication?
Vasopressin (Pitressin)
or
desmopressin acetate (DDAVP)
*these may be utilized as an ADH replacement in DI.
Lung sounds are __ with hypervolemia?
wet
will hear low in the bases first
Fluid retention think ______ first!!
heart problems**
Loop diuretic ?
furosemide (laxis)
potassium sparing diuretic?
spironolactone
Bed rest induces _____ by the release of ____ and decrease the production of ____.
diuresis
ANP
ADH
bedrest patient, where do you look for edema?
SACRUM! (gravity)
also, think about skin breakdown
Fluid volume deficit/ hypovolemia: ___
BIG TIME DEFICIT =SHOCK
loss of fluid anywhere
examples- thoracentesis, paracentesis, vomitting, diarrhea, and hemorrhage
What is third spacing?
when can this happen?
when the fluid is in a space that does you NO good. which can happen with burns and ascites
with ascites, what would you key into?
measure abdominal girth daily
fluid in the peritoneal cavity- think cirrhosis
replace volume:
mild deficit, ____
severe deficit ____
mild- PO fluid
severe- IV fluid
what causes fluid volume excess in heart failure?
heart is WEAK, cardiac output goes DOWN, DECREASED kidney perfusion, urinary output goes DOWN.
The volume stays in the VASCULAR SPACE.