Drug Table Jeopardy Flashcards
Carbonic anhydrase inhibitors limit luminal carbonic anhydrase at this portion of the nephron –> less activity of Na/H antiporter –> decreased HCO3 and Na+ reabsorption
Proximal tubule
This diuretic class can cause increased K+ excretion and metabolic acidosis
Carbonic Anhydrase inhibitors
This diuretic class carries a risk of pulmonary edema
Osmotic diuretic – (e.g. Mannitol, Glucose, Urea, Isorbide)
Loop diuretics inhibit Cl- portion of Na-K-2Cl cotransporter in luminal membrane at this portion of the nephron
Medullary and cortical (proximal) thick ascending loop of Henle (talH)
Osmotic diuretics increase osmolarity of tubular fluid by opposing water and sodium reabsorption at this portion of the nephron
Proximal tubule
This diuretic class is useful in patients w/ renal insufficiency (GFR less than 30-40 [normal is 90+])
Loop-diuretics
This/These diuretic class(es) have a positive (+) charge
Renal ENaC (epithelial Na+ channel) inhibitors
This/These diuretic class(es) have a negative (-) charge
- -Loop Diuretics
- -Thiazide Diuretics
This is the only drug (a diuretic/antiHTN) that does not require tubular lumen access
Spironolactone – K+ sparing diuretic, Aldosterone receptor competitive antagonist
These classes of diuretics require salt intake restriction
- -Loop diuretics (Furosemide, Bumetanide, Torsemide, Ethacrynic acid)
- -Aldosterone receptor antagonist (Spironolactone)
In addition to being used for HTN, chronic edema, idiopathic hypercalcemia (stones), and nephrogenic diabetes insipidus, Clorthalidone is the only thiazide-like diuretic that cal be also used for these 2 purposes.
- -Reduces stroke risk
- -CHF events
This diuretic class has a risk for hepatic encephalopathy, bone marrow depression, skin toxicity, and allergic reactions
Carbonic anhydrase inhibitors
Aminophylline is the only methylxanthine bronchodilator that works as a diuretic by decreasing HCO3 and Na+ reabsorption by working at this portion of the nephron
Proximal tubule
This diuretic class has a lethal interaction w/ quinidine (causes V-tach–>V-fib)
- -Thiazide diuretic (- charge)
- -Thiazide-like diuretic
This diuretic drug has the unique side effect risk of causing megaloblastic anemia in liver cirrhosis patients.
Triamterene – K+ sparing diuretic, renal ENaC inhibitor