PHARM Flashcards
Which drug class ends in -pril?
Angiotensin converting enzyme inhibitors ACEI
Which drug class ends in -sartan?
Angiotensin receptor blockers ARB
Alpha 1 blocker drug names end in what?
-osin “there’s a ocean of blood vessels to constrict”
doxazosin
Which drug class ends in -olol, -alol, -ilol
Beta blockers
-dipines indicate what?
vasodilators DHP dihydropyridine Calcium channel blockers (CCB), as opposed to Non DHP CCB verapamil and diltiazem that work on the heart rather than in the periphery
Which drug paradoxically treats CHF by decreasing cardiac contractility?
Beta blockers
List two single agents and some combination therapies for the treatment of intra-abdominal or pelvic infections for both E.coli (aerobe) and B. frag. (anaerobe).
piperacillin/tazobactam
Ertapenem (carbapenem)
Cefazlolin/ceftriaxone, or Tobramycin + Metronidazole
vasopressin has two different receptors. Describe the effect of their binding to these various receptors.
V1 (VwF release) Incresed SVR
V2 Increased blood volume
Both = increased arterial pressure.
How does your first choice vasopressor for sepsis differ for a crash cart code?
NE for sepsis
Epi for code
When is doBUTamine indicated for use?
When someone has low CO and ongoing hypoperfusion despite achieving adequate intravascular volume and MAP.
What are some major side effects of Beta blockers and why?
Arrythmias, due to increased myocardial O2 demand
What are the major determinants of cardiac O2 demand?
HR, Contractility, wall stress (pre and afterload)
What is extravasation and how can it be avoided?
Pumping of IV fluids outside the vein and into the tissue, which in the case of vasoconstrictors can cut off blood flow to an area of the body; more common in peripheral veinipuncture. This can be avoided with a central line.
Explain the receptor selectivity of the following drugs:
EPI, NE, Dopamine, DoBUTamine, Isoproterenol, ADH, phenylephrine
EPI= (At low dose) Beta more than alpha; high dose equal NE= Beta 1 and alpha 1 Dopamine= Beta and D1 (low dose) alpha 1 (high dose) DoBUTamine= Beta only Isoproterenol = Beta only ADH = alpha 1 Phenylephrine= pure alpha
Name two drugs that stimulate B receptors only
DoBUTamine and Isoproterenol
Name two drugs that stimulate alpha receptors only
AHD and phenylephrine
Which drug stimulates beta receptors more than alpha at low doses but at high doses stimulation is equal?
Epinephrine
Which drug stimulates Beta and alpha 1 receptors only?
NE
Dopamine has what receptor effect and low and high concentrations
low D1 and Beta
High alpha 1
Name two potassium sparing agents that block the action of aldosterone
spir-ono-lactone
e-pler-enone
Aldosterone increases K+ excretion and by blocking aldosterone potassium is spared
What are some of the effects of ACEI, ARB, and DRI?
Reduced preload (decreased blood volume diuretic effect)
Reduced afterload (decreased pressure; vasodilation. Inhibits cardiac and vascular hypertrophy)
Decreased sympathetic activity
What are some side-effects of ACEI, ARB, DRI, Diuretics (ADR)
Hypotension, decreased renal function hyperkalemia (aldosterone inhibition) Cough (ACEI) Angioedema (ACEI (mostly), ARB) Teratogenic
You just started your 30 y/o f patient on a drug for hypertension because of their chronic kidney disease, but they’re having a persistent cough. Their chart indicated some mild childhood asthma, and you’re thinking about switching their medication. What would be the next best choice?
A) ARB
B) Thiazide
C) CCB
D) ACEI
A) ARB
ARB and ACEI are recommened for CKD, but ACEI are more likely to give someone a persistant cough. The next best option is ARB.
WARN THEM ABOUT THE POTENTIAL FOR BIRTH DEFECTS! (ACEI, ARB and DRI)
Under what circumstances might you consider using a Beta 1 selective blocker? What drugs would you use?
In a patient with asthma to avoid the effects of blocking beta 2 receptors: bronchioconstriction and vasoconstriction
atenolol and metoprolol