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13 Cards in this Set
- Front
- Back
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Diuretic purpose
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Accelerate urine formation to reduce extracellular fluid
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Action of diuretics
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Direct arteriole dilation
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Loop Diretics
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Bumex, Edecrin, Lasix
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Mechanism of Action of Loop Diretics
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Inhibit Cl and Na resorption
Reduction in preload and central venous pressure Rapid acting Effect lasts 2 hours |
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Drug effects of Loop Diuretics
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Potent Diuresis and fluid loss
Reduced BP Reduced vascular resistance Potassium and Sodium depletion |
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Indications of Loop Diuretics -
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Edema associated with HF, or hepatic or renal disease
- control of HTN -increase renal excretion of calcium in pt with hypercalcemia |
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Contraindications of loop diuretics
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Known allergy
Hepatic coma Severe electrolyte loss |
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Loop Diuretics Adverse Effects : CNS
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Dizziness
Headache Tinnitus Blurred vision |
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Loop Diuretics Adverse Effects : GI
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Nausea
Vomiting Diarrhea |
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Loop Diuretics Adverse Effects :
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Hematologic
Agranulocytosis Neutropenia Thrombocytopenia |
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Loop Diuretics Adverse Effects ; metabolic
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Hypokalemia
Hyperglycemia Hyperuricemia Hypocalcemia |
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Potassium sparing diuretics -
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Acts of collecting ducts and distal convoluted tubules
-interfere with Na/ K exchange - weak diuretics used with thiazide diuretics |
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Nursing implications of diuretics -
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Monitor pts
BP, HR, weight, I&O, and peripheral edema - monitor electrolyte leves esp. K+ and blood glucose - observe for dizziness, weakness, abd. Cramping teach pt to get up slowly to avoid postural hypotension |
