and Answers | Newest Updated Study Guide
with Accurate Solutions | Grade A+
• What does digoxin do? -✓✓Slows the heart down to allow for more time for the
blood to enter the ventricles, increases cardiac contract filling and sends more
blood through out body
• Therapeutic level of Digoxin -✓✓0.5- 2.0
• What level is generally considered toxic for digoxin? -✓✓> 2.4
• S/S of digoxin toxicity -✓✓Green/yellow/white halos seen, nausea, vomiting,
diarrhea
• What must you do before you administer digoxin and when do you hold? -
✓✓Need to take apical pulse for 60 seconds if less than 60 bpm hold medication
• Most common vasodilater and what does it do? -✓✓Nitroglycerin: dilates blood
vessel to increase flow to myocardium
• Transderaml Patch of Nitroglycerin facts -✓✓- Keep on for 12 hours and off for
12
- Problem with this is people may not notice pt already has one on and add another
• Sublingual nitroglycerin -✓✓- have pt stop any activity, take 1 tab let dissolve, if
pain persists take 2nd tab and call 911
, - Max dose is 3 tabs
- 5 minutes between each dose
• What position should pt be in for sublingual nitroglycerin? -✓✓Sitting bc it
dilates the vessels causing BP drop
• What happens if you don't wait 5 min between nitroglycerin tabs? -✓✓massive
hypotensive effect due to half life of medication
• Patch Vs. Sublingual Nitro -✓✓Patch over sublingual if pt has large amounts of
subartery occlusions
• When do we give IV nitro? -✓✓ICU pt that is very occluded and needs
immediate attention
• What med should be avoided if taking nitro? -✓✓Erectile dysfunction
medications (sydenefil) bc they are vasodilators, mixture causes VERY low BP
• Potassium levels -✓✓3.5-5.0 mEq/L
• What does hydrochlorothiazide do to potassium? -✓✓It is a potassium depleting
diuretic
• What happens if potassium levels are too high or too low? -✓✓Life threatening
dysrhythmias