HTN Exam 5 Flashcards
Angiotensin causes adrenal glands to secrete ?
aldosterone - increases sodium reabsorption
kidneys secrete ______ if the blood pressure falls below normal.
renin
Hypotheses for idiopathic HTN?
reduced renal sodium excretion
genetic variations of the renin-angiotensin system
Environmental factors like obesity and smoking
Chronic vasoconstriction
secondary HTN caused?
Renal - CKD, RAS ( renal artery stenosis)
Endocrine - adrenal , thyroid dysfunction
Cardiovascular - MI and aortic dissection
Neurologic - stroke and dementia
Normal systolic and diastolic ?
<120 , <80
Prehypertension systolic and diastolic ?
120-139 / 80-89
Stage 1 Hypertension systolic and diastolic ?
140-159 / 90-99
Stage 2 Hypertension systolic and diastolic ?
> 160 / >100
Essential HTN
90% of cases
usually asymptomatic
sx - non specific HA
any other symptoms then may indicate secondary HTN or complications
Secondary HTN
another primary medical condition created the HTN
Malignant HTN syndrome
retinopathy and encephalopathy or nephropathy and a very high high of complications
Urgency HTN
acutely elevated BP W/O evidence of end organ damage
S: >220
D: >125
Emergency HTN
acutely elevated BP WITH evidence of end-organ damage
such as: Heart attack, Stroke, Renal failure
Metabolic syndrome findings that increase the risk of CVD and DM?
Central obesity Hypertriglyceridemia Low HDL Hyperglycemia Hypertension
what can you see on PE or eye if HTN is considered?
Rentiopathy - retinal exudates or hemorrhages
Papilledema
usually you run no tests if BP is significantly elevated or if patient is symptomatic ? T to F
T
For a new diagnosis what basic labs do we want to run?
EKG
BUN/creatinine
Optional: CXR
If HTN the on a EKG we will see?
Left ventricular Hypertrophy
If HTN the on a CXR we will see?
ventricular hypertrophy (cardiomyopathy)
severe: aortic tortuosity
IF HTN then what blood tests will be increased
BUN creatinine Potassium Calcium Uric acid
What is evidence of metabolic syndrome?
elevated serum and urine glucose
if end organ brian damage what will we see on the CT?
Hemorrhage
increased ICP
End organ cardiac disease what will we test ?
EKG and troponin
Essential HTN diagnosis?
at least 2 visits with elevated BP over a period of weeks to months
Secondary HTN diagnosis?
at least 2 visits with elevated BP over a period of weeks to months with underlying cause.
IF you suspect White coat syndrome HTN then what do you do?
home BP monitoring
IF malignant HTN what is diagnostic and what will we see?
retinopathy, HTN, encephalopathy
neuropathy
IF urgency HTN what is diagnostic and what will we see?
S: >220 or
D: >125
w/ no end organ damage
IF emergent HTN what is diagnostic and what will we see?
acutely elevated BP w/ end organ damage
Typical management of 1 high reading?
Lifestyle modifications education - DASH (dietary approaches to stop hypertension)
- low total fat
- low sodium
Typical management of 2 high reading?
CHOOSE ONE OR TEO:
ace inhibitor
calcium channel blocker
diuretic
what are the treatment/management goals for HTN?
BP less than 140/90
if over 60 y.o. : BP less than 150/90
social life style modifications?
smoking cessation
decrease alcohol
Physical life style modifications?
weight loss
aerobic exercise
If patient fails life style modifications then what are the primary choices for tx?
Diuretic
ACE inhibitor
CCB
If Stage 1 start with a ______ medication
single
IF stage 2 or above start with ___ medications
two
Examples of Diuretics?
Thiazide diuretics (Chlorthalidone)
Loop Diuretics (Furosemide) Lasics
Potassium-sparing diuretics (Triamterene)
Aldosterone Receptor Blockers (Spironolactone)
Thiazide diuretics ?
(Chlorthalidone)
Loop Diuretics?
Furosemide) Lasics
Potassium-sparing diuretics
Triamterene
Aldosterone Receptor Blockers
Spironolactone
Examples of Renin- Angiotension system
Angiotensin Converting Enzyme Inhibitors (ACEI) (Lisinopril)
Angiotensin Receptor Blockers (ARB) (Losartan)
Examples of Vasodilators?
Calcium Channel Blockers* (Amlodipine)
Alpha 1 Blockers (Doxazosin) - prostate
Alpha 2 Agonists (Clonidine) - knock it down fast but pos the time we do want to drop the BP to fast
Direct Vasodilators (Hydralazine) - vasodilator
Rate control? heart rate
Beta-blockers (Metoprolol) - rate control is not great; v so the rate down o the stroke volume is more effective - not pushing out as much blood - used mostly with people with true heart disease ( CHF) - decreases demand of the heart
Thiazide diuretics MOA
Blocks sodium resorption at the distal tubule of kidney nephrons
Causes increase salt concentration in urine
Water follow salt for increased diuresis
SE: gout, hypokalemia
Angiotensin Converting Enzyme Inhibitors (ACEI) MOA?
Inhibits conversion of angiotensin I to angiotensin II
Inhibits vasoconstriction by angiotensin II
Increases kidney blood flow
increasing diuresis
SE: cough
Beta-blockers MOA?
Blocks sympathetic beta receptors
Decrease heart rate which decreases cardiac output
this also messes with the kidney beta cells
best for pregnancy
Calcium Channel Blockers (CCB) MOA?
Inhibit calcium influx
smooth muscle relaxation and arterial dilation
best for AA and elderly and if renal failure
CHF
loop diuretic, ACEI, BB
Post- MI
ACEI, BB
Renal disease
ACEI
Diabetes
ACI
Pregnancy
beta blocker ( labaetalol?)
BPH
alpha 1 antagonist
Liver Disease, ascites
aldosterone antagonist
African americans
diuretic, CCB
Elderly
diuretic, CCB
If acute HTN that is asymptomatic consider giving?
meds only
If acute HTN that is symptomatic consider giving?
meds to lower BP by 25-33%
or
treat underlying casue
One thing we have to be careful of when prescribing BP meds?
Do NOT decrease the BP to rapidly cause we can cause a stroke
Emergency HTN medical management Step 1 ?
Initiate antihypertensive by end organ damage
Emergency HTN medical management Step 1 goal?
Goal typically 20-30% reduction
Emergency HTN medical management Step 2?
Treat underlying condition
Hypertensive urgency
Emergency HTN medical management Step 3, if symptomatic?
Initiate treatment - antihypertensive by end organ damage
Emergency HTN medical management Step 4 ?
consider discharge
Initiate antihypertensive by comorbidities
Hypertensive emergency First Line options IV CCB?
Nicardipine
Hypertensive emergency First Line options IV Beta Blocker?
Labetalol
Hypertensive emergency First Line options IV, especially if MI?
Nitroglycerin
Hypertensive emergency First Line options IV additional choices?
Sodium nitroprusside
ACEI (Enalaprilat)
Anticholinergic (Trimethaphan)
Loop diuretics (Furosemide)
Hypertensive urgencies/emergencies - Aortic dissection?
beta blocker - labetalol, esmolol
Hypertensive urgencies/emergencies - Acute renal failure?
dopamine 1 receptor agonist
Hypertensive urgencies/emergencies - Pregnancy?
direct vasodilator
Hypertensive urgencies/emergencies - Oral options for less severe emergencies
CCN
Clonidine
Captopril
Nifedipine
Hypertensive Emergency - Aortic dissection tx?
B-Blocker ( labetalol, esmolol)
then,
Nicardipine, nitroprusside
Hypertensive Emergency - Pulmonary edema tx?
Nitroglycerine
Enalaprilat or Nicardipine
Hypertensive Emergency - MI tx?
Nitroglycerine
Hypertensive Emergency - Sympathetic crisis (cocaine OD) tx?
Benzodiazepine (decrease stimulation)
Nitroglycerine
No BB cause it causes severe HTN
Hypertensive Emergency - Renal failure tx?
Labetalol
Nicardipine
Hypertensive Emergency - Severe preeclampsia, HELLP syndrome, eclampsia tx?
Labetalol
Nicardipine
Hypertensive Emergency - Hypertensive encephalopathy tx?
Nicardipine
Labetalol
Hypertensive Emergency - Subarachnoid hemorrhage tx?
Labetalol
Nicardipine
Hypertensive Emergency - Intracranial Hemorrhage tx?
Labetalol
Nicardipine
Hypertensive Emergency - Ischemic stroke tx?
Labetalol
Nicardipine
Hypertensive Emergency - Postoperative tx?
Nicardipine
Labetalol
Outpatient treatment initiation for 120-140/80-90 ?
Advise follow-up
Outpatient treatment initiation for 140-160/90-100 ?
advise follow-up within 2 mo.
Outpatient treatment initiation for >160/ >100 ?
advise follow-up within 1 mo.
Outpatient treatment initiation for >180/ >110 ?
Consider initiating therapy at discharge, follow-up in 1 week.
Outpatient treatment initiation for >220/ >120 ?
begin antihypertensive therapy at discharge, follow-up in 1 week