Week 12 Diuretics Flashcards
Thiazide diuretic prototype drug
hydrochlorthiazide
loop diuretic prototype drug
furosemide
potassium-sparing diuretic prototype drug
spironolactone
Therapeutic action: thiazide diuretic
Inhibits reabsorption of sodium and chloride in distal renal tubules, increasing the excretion of sodium, chloride, and water by the kidneys
indications: thiazide diuretic
- Adjunctive therapy for edema associated w/ heart failure, cirrhosis, estrogen or corticosteroid therapy, and renal dysfunction
- Treatment of hypertension by self or in combination w/ antihypertensives
pharmacokinetics: thiazide diuretic
- Administered orally
- metabolized in liver, excreted in kidney
- crosses the placenta/ breastmilk
Adverse effects: thiazide diuretic
Related to interference of the nephron
- F &E balance (hypokalemia, hypercalcemia, high uric acid levels)
- hypotension, dizziness, vertigo
- polyuria, nocturia
- n/v/d, anorexia
contradictions: thiazide diuretic
- Allergy
- Fluid/electrolyte imbalances
- severe renal disease; prevent diuretic from working
- systemic lupus
- diabetes mellitus; worsened by diuretics
- gout
drug-drug interactions: thiazide diuretic
- Decreased absorption of these drugs may occur if taken w/ cholestyramine; separate by at least 2 hrs
- decreased effectiveness of antidiabetic agents may occur related to changes in glucose metabolism
nursing considerations: thiazide diuretic
- Get baseline physical assessment
- monitor I &O, assess voiding pattern
- Assess weight daily; same scale, same time of day, same amount of clothes
- Monitor electrolytes, renal, and liver functions
- monitor cardiac response & cardiac rhythm
-administer oral for early in the day
therapeutic actions: Loop diuretics
Inhibits reabsorption of sodium and chloride from the distal renal tubules and the loop of Henle, leading to a sodium-rich diuresis
indications: Loop diuretics
Treatment for edema associated w/ heart failure, acute pulmonary edema, and hypertension
pharmacokinetics: Loop diuretics
- Oral, IV, or Im
- metabolized in lever, excreted in urine
adverse effects: Loop diuretics
Related to imbalance in electrolytes and fluid
- hypokalemia> lost K in tubules
- hypotension, dizziness, vertigo
- rash, urticaria
- n/v, anorexia
- urinary bladder spasm
- long term use; hyperglycemia
contraindications: Loop diuretics
- Allergy
- Electrolyte depletion; aggravated by electrolyte effects
- Anuria or severe renal failure; prevent diuretic from working
- Hepatic Coma; exacerbated by fluid shifts
- Lupus, gout, and diabetes mellitus