Cardiovascular Conditions: Hypertension Flashcards
Primary vs secondary HTN?
Primary = cause unknown, combo of risk factors
Secondary = can be caused by renal or adrenal disease, sleep apnea
Stages of HTN
Normal = SBP < 120, DBP < 80
Elevated = SBP 120-129, DBP < 80
Stage 1: SBP 130 - 139, DBP 80-89
Stage 2: SBP > 140, DBP > 90
Proven lifestyle interventions
Weight loss
Heart Healthy Diet = DASH
Sodium intake < 1,500mg
Exercise
Stop smoking
Limit alcohol smoking
ACC/AHA treatment principles
Lifestyle modifications
QD regimen preferred
4 drug classes preferred (ACE, ARB,DHP CCBs, Thiazide diuretics)
most req combo, dont add second until max dose of 1st. Dont use ACE/ARBs together
Which HTNsion drugs have boxed warnings in pregnancy
ACE
ARB
PSCK9i
First line txm for HTN in pregnancy
labetalol
nifedipine ER
Metyhldopa less effective but an optionW
When to start txm for HTN?
Start stage 2
Stage 1 + CVD, ASCVD > 10%, dont drop BP after 6 month of life changes
Goal = <130/80
Where do thiazide diuretics work?
Inhibit sodium reabsorption in DCT< inc excretion of sodium, Cl, H20, potassium
Thiazide CI
cross hypersensitivity with sulfonamide-derived drugs
Thiazide side effects
dec K/Mg/Na
Inc Ca/UA/LDL/TG/BG
Photo sensitivity
Thiazides are not effective when
CrCl < 30 mL/minT
Thiazide notes
take during day to avoid nocturia
Chlorothiazide only one you can get IV
Dont use thiazides in combo with drugs that inc sodium/water retention such as…
NSAID
Two types of CCB
DHP
Non-DHP
DHP CCBs
Nifedipine
Amlodipine
Non-DHP CCBs
diltiazem
Verapamil
DHP CCB warnings
Hypotension
** Nifedipine IR: dont use for chronic HTN or acute BP reduction in non-pre adults **
DHP CCB side effects
Peripheral edema
Headache
flushing
palpitations
reflex tachycardia
gingival hyperplasia (more w/ non DHP)
Safest CCB to use in HFrEF?
Amlodipine
Which DHP is drug of choice in pregnancy
Nifedipine ER
Clevidipine CI
allergy to soybeans, products or eggs
Clevidipine warnings
Hypotension
reflex achy
infections
Clevidipine side effects
Hypertriglyceridemia
DHP CCB work by
inhibit Ca ions form entering vascular smooth muscle and myocardial cells, causing peripheral arterial vasodilation (dec SVR/BP)
Non-DHP CCB work by
inhibit Ca ions from entering vascular smooth muscle and myocardial cells (more selective for myocardium than DHP)
decrease in BP due to negative inotropic and chronotropic effects
Non-DHP CCBs CI
AV block or sick sinus syndrome
acute MI and pulmonary congestion
Non-DHP CCBs warnings
May worsen HF symptoms
bradycardia