9-14 STARRED FLASHCARDS
What are ACE inhibitors
first line agents in treatment of HTN and HF
How do ACE inhibitors work?
Block the conversion of angiotensin 1 to angiotensin 2
Where doe ace inhibitors act
in the lung (increases the potential for a cough)
What do ACE inhibitors actions result in
decrease in BP and PR
decrease in aldosterone secretion which reduces blood volume
What else do ACEI’s do?
Inhibit the breakdown of bradykinin
What can the accumulation of bradykinin cause
several ADEs effects of ACE inhibitor (cough for example)
Indications for ACE inhibitors
slow progression of HF
Lower mortality of recent acute MI
prophylaxis for adverse cardiac events
prevent or delay progression of renal disease and retinopathy of diabetics
ACE inhibitors contraindications
contraindicated in hyperkalemia
no pregnancy (major congenital defects)
caution with K+ sparing diuretics
What is the most serious ADE of ACEI
angioedema: rapid swelling of throat, face, larynx, tongue that can lead to airway obstruction
ACEI prototype drug
Lisinopril
ACEI therapeutic classification
antihypertensive
ACEI pharmacologic classification
ACE inhibitor
Therapeutic effects and uses for lisinopril
HF
HTN
Acute MI
Lisinopril MOA
Binds to and inhibits ACE action
decrease in serum angiotensin 2 reduces aldosterone, which results in less sodium and water retention
Lisinopril ADEs
Cough
Headahce
Dizziness
Orthostatic Hypotension
Lisinopril serious ADEs
Angioedema
Agranulocytosis
Hepatotoxicity
Lisinopril contraindications
pregnancy category D
angioedema
hyperkalemia
serious renal impairment
Lisnopril considerations
Check renal labs and K+ levels for hyperkalemia
monitor BP before administration and 30 min to 1 hour after
Lisinopril Drug Interactions NSAIDs
Decreased antihypertensive activity and worsened renal disease
Lisinopril drug interactions diuretics/other hypotensive
synergistic hypotensive action
lisnopril drug interactions potassium supplements, potassium sparing diuretics
Hyperkalemia
What pregnancy categories is lisinopril
Preg C first trimester
Preg D second and third trimester
Lisinopril treatment of OD
NS or vasopressor
Hemodialysis
ARBS indications
Same as for ACE inhibitors
Treat HTN and HF
Some approved to treat MI and prophylaxis of CVA
DO not cause cough
angioedema is less common
ARBs prototype
losartan
Losartan therapeutic classification
Antihypertensive
Losartan pharmacologic classification
Angiotensin 2 receptor blocker
Losartan therapeutic effects and uses
HTN
CVA prophylaxis
Prevention of diabetic nephropathy
Off label use for HF
Losartan MOA
selectively blocks angiotensin AT1 receptors, resulting in decreased BP
blockade prevents cardiac remodelling and deterioration of renal function in pts with DM
Losartan Drug interactions NSAIDs
decreased antihypertensive activity
Losartan drug interactions diuretics/other hypotensive
additive hypotensive action
Losartan drug interactions potassium supplements/potassium sparing diuretics
hyperkalemia
Losartan drug interactions alcohol
additive hypotensive effect
HTN damage on heart
hypertrophy, MI, HF