HTN Small Group Flashcards
What is the hyperdynamic phase of HTN
When most of an elevated BP is due to increased CO contribution
More likely in younger pts
Would present with forceful point of maximal
What are the first line drugs for HTN in African Americans
Chose 1 - see what the reduction is, then maybe add the other
Ca2+ blocker
- Dihydropyridines (you’re going with this one overall 1st!!)
Diuretics
- Thiazides - also vasodilators but worsen metabolism (glucose, lipids, etc)
(Loop diuretics are not anti-HTNs)
What are some factors that might help you decide which 1st line anti-HTN to use?
Family history
Smoking N/A - doesn’t change drug choice
Whether or not he has LVH - check EKG
- Wouldn’t really change management b/c 4 1st line drugs reverse LVH
Diabetic - stay away from thiazides, toward RAS inhibitors b/c protective against diabetics
Athlete - avoid BBs
High salt diet - go with thiazides
Lab changes after 6mo therapy of w/o change: Thiazide ACE inhibitor or ARB BB Ca CB
"Rule of 10s" Thiazide - add dihydro Ca CB ACE inhibitor or ARB + thiazide BB - stop and regroup lol Ca CB + thiazide
Why do you always include thiazide if taking multiple anti-HTNs?
B/c enhances the effects of all the other drugs
Thiazides included in all multiple pill treatments
If a diabetic pt presents with proteinuria and HTN, what drug MUST this pt on if nothing else?
RAS inhibitor - ACE or ARB - B/c proteinuria These drugs reduce rate of progression of kidney disease Also best way to reverse LVH
What indicates stiff vessels?
High PP
3 signs of end organ damage (2ary HTN)
- Bruits over renal artery - within 1 cm of naval
- Focal neural deficits - ischemic strokes or eye findings (flame shaped hemorrhages)
- S4 gallop - diastolic dysfxn (impaired relaxation of ventricles) - LVH
What lab values might make you think about renal artery stenosis?
Low plasma K & high urine K due to increased aldosterone
What do you think of when you hear h/o “attacks” of palpitations, chest tightness, pounding headache, sweating
Pheochromocytoma
Why alpha before beta blockers?
Would have unopposed alpha vasoconstriction
Could cause HTN crisis
Rule of 10s for pheochromocytoma
10% are bilateral
10% are familial
10% are malignant
10% are extra-adrenal