NURS 305 Study Guide - Quiz Guide: Atrial Tachycardia, Loop Diuretic, Beta Blocker
Document Summary
Don"t want patient peeing throughout the night: same drug interactions as loop diuretics. Potassium sparing diuretics: fairly weak and rarely used alone, prevent na uptake by antagonizing aldosterone, work in the late distal convoluted tubule, sometimes used with k wasting diuretics to reduce the risk of hypokalemia. Osmotic diuretics: increase the osmotic pressure of the glomerular filtrate, causing water to be drawn into the bloodstream from the extracellular fluid compartment. The increased blood volume causes excretion of water and electrolytes by the kidneys: used for reducing intracranial and intraocular pressure, may cause initial edema in non-brain tissues. Diuretic main points: daily weights, accurate i&os, dietary na intake, watch electrolytes carefully. K (3. 5-5: watch ekg changes ~ potassium changes, use with digoxin may cause hypokalemia, administer diuretics in the morning, assess for orthostatic hypotension. Never give iv push cardiac arrest. Never exceed 20 meq over 1 hour. Slow the infusion if necessary: hyperkalemia tx.
