Fluid & Electrlytes Flashcards
What is aldosterone?
A mineralcorticosteroid that is produced by the adrenal glands. Aldosterone makes you retain sodium and water and makes you lose potassium.
What is a diagnosis with too much aldosterone?
Cushing’s and Conn’s
What is a diagnosis with not enough aldosterone?
Addison’s
What is Cushing’s?
A disease with too many steroids. which makes you have too much aldosterone, which makes you retain too much sodium and water
What is Conn’s?
A disease that makes you have too much aldosterone. Which makes you retain too much sodium and water
What is Addison’s?
A disease with not enough aldosterone, which makes you lose sodium and water
What does ANP do?
Causes the excretion of sodium and water
What does ADH do?
Makes you retain water
What excretes ANP?
The atrium
What is the diagnosis with too much ADH?
SIADH
What is the diagnosis with not enough ADH?
Diabetes insipidus
What does SIADH do?
You have too much ADH, which makes you retain too much water with decreased urine output.
What does diabetes insipidus do?
You have not enough ADH which causes you to diuresis. Watch out for the patient from going into shock
What is vasopressin?
ADH used in diabetes insipidus as an ADH replacement
What is desmopressin acetate?
ADH used in diabetes insipidus as an ADH replacement
When you see a patient with a head issue, what should you initially think of?
Potential ADH problem
Where is CVP measured?
The right atrium
What is the CVP range?
2-6 mmHg
5-10 cmH2O
What does acute Weight gain mean?
Increased fluid volume
What should you initially think of when you see fluid retention?
Possible heart problems
What is bumetanide?
Loop diuretic that loses potassium
What is furosemide?
Loop diuretic that loses potassium
What is hydrochlorothiazide?
Diuretic that retains calcium
What is spironolactone?
Potassium sparing diuretics that causes hyperkalemia. Always limit patient dietary intake of potassium with this med.
What is ascites?
Fluid in the peritoneal cavity which causes fluid volume deficit. The patient will have a large abdomen, possible breathing problems, and sometimes have a liver diagnosis. Always check blood pressure and measure abdominal girth.
What should you initially think of when you see polyuria?
Shock
What are you worried about with anuria?
Renal failure
What are the changes in vital signs with fluid volume deficit?
Decrease blood pressure, increased heart rate, increased respirations
What is isotonic solution?
Fluid that goes into your vascular space and stays there.
It makes the blood pressure increase.
It’s used for fluid volume deficit.
DO NOT use isotonic solutions with hypertension patient, cardiac diagnosis, and renal diagnosis.
Can cause hypertension, fluid volume excess, or hypernatremia
What kind of solution is normal saline?
Isotonic solution
What kind of solution as lactated ringer’s?
Isotonic solution that is most widely used for the shock patient because it has the most electrolytes.
What kind of solution is D5W?
Isotonic solution that can cause hyponatremia
What kind of solution is D5 1/4NS?
Isotonic solution
What are some examples of isotonic solutions?
NS
LR
D5W
D5 1/4NS
What is the solution of choice for the shock patient?
Isotonic, LR because it has more electrolytes
What is hypotonic solution?
Fluid that goes into the vascular space and then shifts out into the cells to replace cellular fluid.
It rehydrates but doesn’t cause hypertension.
Used for the patient with hypertension, renal or cardiac disease, and has fluid volume deficit.
Watch out for cellular edema which can lead to fluid volume deficit and decrease blood pressure.
What kind of solution is D2.5W?
Hypotonic solution
What kind of solution is 1/2NS?
Hypotonic solution
What kind of solution is 0.33% NS?
Hypotonic solution
What are examples of hypotonic solution?
D2.5W
1/2NS
0.33% NS
What is hypertonic solution?
Volume expander that draws fluid into the vascular space from the cell.
Used for the patient with third spacing, edema, burns, or ascites.
Watch out for fluid volume excess and pulmonary edema.
Monitor blood pressure, pulse in central venous pressure closely. (especially with 3%NS and 5%NS)
What type of solution do you give to the patient who has fluid volume deficit and doesn’t have hypertension, cardiac problems, or renal problems?
Isotonic solution : NS LR D5W D5 1/4NS