Vasoactive Meds - VASODILATORS

Question 1

Nitroglycerin (NTG)

Answer 1

~direct vasodilator
~venodilation (reduces R and L
ventricular preload and afterload)
~dilates coronary arteries

Question 2

NTG side effects

Answer 2

HpTN, HA, nitrate tolerance (ppl need an “off” period)

Question 3

Sodium Nitroprusside

Answer 3

has a more balanced effect on the arteries and veins

Question 4

Sodium Nitroprusside side effects

Answer 4

thiocyanate toxicity (tinnitus, abd pain, weakness, agitation, disorientation, lethargy, seizures, coma) if on it for longer than 48*.

Question 5

Nesiritide (Natrecor)

Answer 5

~identical to endogenous BNP
~causes vasodilation and natriuresis
and diuresis

Question 6

Calcium Channel Blockers

Answer 6

Some are stronger AV node blockers where they will slow down the HR and some are stronger vasodilators such as nicardipine which is useful in a HTN emergency