Diuretics Flashcards

1
Q

Thiazide diuretics include

A

Hydrochlorothiazide
Metolazide
Chloralidone

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2
Q

Indications for thiazide diuretics

A

Hypertension

Edema

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3
Q

Loop diuretics include

A

Furosemide
Torsemide
Bumetanide
Ethacrynic acid

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4
Q

Indications for loop diuretics

A

Edema

Hypertension

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5
Q

K sparing diuretics

A

Na channel blockers - amiloride and triaterene

Aldosterone antagonists - spironolactone and eplerenone

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6
Q

Indications for k sparing drugs

A

Edema and hypertension

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7
Q

Aquaretics

A

Conivaptan

Tolvaptan

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8
Q

Indications for aquareteicis

A

Hyponatremia

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9
Q

Carbonic anyhydrase inhibitors

A

Acetazolamide

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10
Q

Indications for ca inhibitors

A

Urinary alkalinzation
Mountain sickness
Glaucoma

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11
Q

Osmotic diuretics

A

Mannitol

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12
Q

K sparing diuretics

A

Na channel blockers - triamterene, amiloride

Aldosterone antagonists - spironolactone

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13
Q

K wasting diuretics

A

Thiazides (Na Cl blockers)
Loop diuretics (nkcc cotransporter)
Carbonic anhydrase inhibitors
Osmotic diuretics (nonresorbable solutes)

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14
Q

Mechanism of action of loop diuretics

A

Block na k 2cl cotransporter in TAL

Potassium diffuses into lumen and blocks Ca and Mg pericellular tranport

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15
Q

At maximum doses, what does furosemide do

A

Max doses - dissipation of medullary interstitial gradient IRRESPECTIVE of whether urine was dilute or concentrate
ISOTONIC

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16
Q

Indications for loop diuretics

A

Rapid and massive fluid removal
Edema, hepatic, cardiac or renal origin
Acute pulmonary edema 0 removes excess extracellular fluid
Hypertension that is unresponsive to other diuretics
Works when RBF and GFR are low

17
Q

AE of loop diureticds

A
Hyponatremia 
Hypochloremia
Hypokalemia - k wasting diuretic 
Hypocalcemia
Hypotension 
Hypomagnesium 
OTOTOXICITY 
Hyperglycemia, hyperurecemia 
Hyperlipdemia 
Crosses placenta
18
Q

Why do k wasting diuretics cause hypokalemia

A

Na not reabsorbed in talh is partially reabsorbed by downstream na cl cotransporter via na k exchange in collection
K/H exchange at cells to try to maintain plasma k —> hypochloremic metabolic alkalosis

19
Q

Drug interactions with loop diuretics

A

Digoxin
Ototoxic drugs
Potassium sparing diuretics

20
Q

MoA of thiazide diuretics

A

Block NaCl cotransporter in DCT

SEVERE magnesium wasting

21
Q

Thiazides are used in the tx of what type of diabetes insidious

A

Nephrogenic

22
Q

Main uses of thiazides

A

Primary hypertension and edema
Nephrogenic diabetes insipidus
Decreases Ca excretion - can decrease risk of kidney stones

23
Q

AE of thiazides

A
Hypokalemia
 K sparing diuretic
Hypochloremic metabolic alkalosis
Hypomagnesia 
Increases plasma glucose, urate, lipid 
Avoid in pregnancy