14 - Hypertension Flashcards
BP assoc w/ lowest risk of stroke and CAD?
115/75
every ___ mmHg increase in SBP doubles risk of stroke and CAD death
20
MAP = (real eqn and estimation)
CO x SVR
2/3 DBP + 1/3 SBP
cutoff for HTN and stage 2 HTN
HTN = 140/90
stage 2 = 160/100
major causes of secondary HTN
renal artery stenosis renal dz BC pills aldosteronism pheo coarctation of aorta
for HTN pts, what is BP goal?
what about w/ diabetes?
normal HTN pt - <130/80
isolated systolic HTN
2/3 of all HTN pts >65 yo
SBP is more important as a risk factor than DBP, so still should treat
3 main complications of HTN
heart disease
HT crisis
target organ damage
criteria for hypertensive crisis, and what is the main problem?
BP > 200/120
vascular damage
examples of hypertensive emergencies
hypertensive encephalopathy acute stroke retinal hemorrahge / papilledema acute pulm edema acute MI acute renal failure acute aortic dissection
4 main target organ damage examples from HTN
peripheral vascular disease
aortic aneurysm / dissection
nephrosclerosis leading to renal failure
thromboembolic or hemorrhagic stroke
how much do meds and weight loss affect BP, respectively?
meds - 1 med usually drops it by 10/5 mmHg
2 lbs weight loss usually drops 1 mmHg off SBP
initial drug choices for stage 1 and 2 HTN
stage 1 - thiazide diuretics (other options - ACEI, ARB, BB, CCB)
stage 2 - 2 drug combo for most usually thiazide diuretic + (ACEI, ARB, BB, or CCB)
other compelling reasons to use different HTN meds than first line
heart problems - generally want to consider a BB
diabetes/kidney problems - ACEI/ARBs are a good choice