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NUR 210, 242 Exam 3 pharm study guide.
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NUR 210, 242Exam 3 pharm study guide.
Exam 3 pharm study guide
Loop, potassium-sparing, and thiazide diuretics
Drug classification
Thiazides
Thiazide-like diuretics
Loop
High ceiling diuretics
Potassium-sparing
Potassium sparing diuretics
Thiazide
Action
Acts on the distal convoluted renal tube.
Promotes sodium, chloride, and water excretion
Indications
Hydrochlorothiazide
Decrease blood pressure
Decrease amount of fluid within the body
Treats peripheral edema
Side effects
Hyperglycemia
Hypercalcemia
Hypokalemia
Dizziness
Vertigo
Adverse reactions
Cardiac dysrhythmias
Orthostatic hypotension
Severe hypokalemia
Contraindications
Renal failure
Diabetes
Interactions
Digoxin
Herbal products
Loop diuretics
Action
Act on the loop on henle by inhibiting chloride transport of sodium and passive
reabsorption of sodium.
As more fluid is passed out by the kidneys, less fluid remains in the bloodstream
Indications
Furosemide
HF
Renal dysfunction
Hypertension
Peripheral and pulmonary edema
Side effects
,NUR 210, 242
Exam 3 pharm study guide.
Electrolyte imbalances
Decrease in potassium, magnesium, sodium, calcium
Hyperglycemia
Dizziness
Headache
Adverse reactions
Hypokalemia
Hyponatremia
Hypomagnesemia
Orthostatic hypotension
Renal failure
Contraindications
Severe electrolyte imbalance
Hypovolemia
Anuria
Diabetes mellitus
Hypotension
Interactions
Digoxin-risk for digitalis toxicity
Lithium
Potassium-sparing
Action
Blocks the action of aldosterone
Promotes sodium and water excretion and promotes potassium retention
Indications
Spironolactone
Edema/fluid retention
Hypertension
Congestive heart failure
Kidney disease
Side effects
Dizziness
GI upset
Weakness
Headache
Adverse reactions
Hyperkalemia
Hepatoxicity
Contraindications
Severe kidney and liver disease
Interactions
Potassium supplements
Ace inhibitors
Diuretics and the nursing process
Assessment (for all diuretics)
Baseline vitals
,NUR 210, 242
Exam 3 pharm study guide.
Weight pt
Look for third spacing
Medical history
Peripheral edema
Baseline labs
Electrolytes, potassium, magnesium, and glucose
Urine output
Interventions
Monitor urine output
Daily weight
Monitor vitals
Loop diuretics
IV very slowly to avoid hearing loss
Thiazide and loop diuretics
Watch for hypokalemia (low
potassium) Potassium sparing diuretics
Watch for hyperkalemia (high
potassium) Hypokalemia ( low potassium) s/s
Muscle weakness
Cramps
Cardiac dysrhythmias
Hyperkalemia (high potassium) s/s
Nausea
Diarrhea
Abdominal cramping
Tingling In hands and
feet
Pt evaluation
Decrease in bp or within normal limits
Increase urine output
Decrease in fluid retention
Weight goes down
Pt teaching
Diet-either high or low potassium
Loop or thiazide: eat more potassium
Potassium sparing: eat less potassium
s/s of hyper or hypokalemia
teach pt to stand up slowly
pt should take meds in the morning
daily weights: 1 or 2lbs daily shift is normal
loop diuretics: stronger and not self-limiting
thiazide diuretics: self-limiting
Summary
Thiazide Diuretics
It is important to monitor electrolytes in patients taking thiazide diuretics.
, NUR 210, 242
Exam 3 pharm study guide.
Patients should see decrease in BP and peripheral edema.
Teach the patient about signs and symptoms of
hypokalemia.
Loop Diuretics
Loop Diuretics are used to treat Heart failure, HTN, and peripheral edema.
During the nursing intervention, it is important to monitor electrolytes.
Signs and symptoms of hypokalemia are muscle weakness/cramps and
cardiac dysrhythmias.
Potassium-Sparing Diuretics
Potassium sparing diuretics are used to treat hypertension, edema, and
heart failure.
During a nursing intervention, it is important to monitor electrolyte levels,
at risk for hyperkalemia.
Potassium sparing diuretics may not be given with ACE inhibitors.
Osmotic diuretics
Classifications
Osmotic diuretic
Action
Increases osmolality and sodium reabsorption in the proximal tubule, drawing in
more water.
Kidneys excrete sodium, chloride, potassium, and water
Indications
Mannitol
Increased cranial pressure
Cerebral edema
Increased ocular pressure
Prevent renal failure
Side effects
Electrolyte imbalances
GI problems
Adverse reactions
Pulmonary edema
Tachycardia
Acidosis
Contraindications
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