HTN part 1&2 Flashcards
elevated blood pressure
Hypertension
Hypertension is when high force exerted by circulating blood against the ____________
arterial walls
guidelines in the classification of hypertension
jnc, aha/acc, esc/esh
Blood pressure is equals to
CO (Cardiac Output) x SVR (Systemic vascular Resistance)
To get the cardiac output you have to
multiply stroke value with heart rate
special nerve cells that keep blood pressure balanced
baroreceptors
Baroreceptors are controlled by
CNS
What acts on angiotensinogen to form angiotensin 1
renin
Renin combined with angiotensinogen forms
angiotensin 1
it is a weak vasoconstrictor
angiotensin
What acts on angiotensin I to form angiotensin II
ACE
ACE is released from
Lungs
Angiotensin II is a
potent vasoconstrictor
This also acts directly on blood vessels stimulating vasocontriction
Angiotensin II
This acts on the adrenal gland to stimulate the release of aldosterone
Angiotensin II
Angiotensin II acting on the adrenal gland will stimulate the release of
aldosterone
this is an antidiuretic hormone that reabsorbs water and salt
aldosterone
when salt and water are reabsorbed it will _________ SV and ____________ VR
increase; increase
Type of htn: 90-95% unkown etiology; essential htn
Primary
Type of htn: renal disease, endocrine diseases, vascular, drugs
Secondary
type of htn wherein patient’s bp is higher when it is measured with the presence of a doctor
White coat
type of htn wherein bp is elevated despite optimally dosed medications
resistant htn
it is a sudden, severe increase in blood pressure (180/120 millimeters of mercury (mm Hg) or greater
htn crisis
with target organ damage
htn emergency
with organ damage and SBP>210 ; DBP>130
accelerated
with organ damage and decrease by 20-25%
malignant
with no target organ damage
Hypertensive Urgency
In young and middle age __________ is more at risk than __________
male is more at risk than female
T/F: females experiencing menopause is at risk
true
T/F: Black communities have lower chance getting HTN
false
drugs used in htn
diuretics, sympathoplegics blockers, vasodilators, angiotensin antagonists, renin inhibitors, ccb
example of diuretics
carbonic anhydrase inhibitor, osmotic diuretic, loop diuretics, thiazide and related diuretics, k-sparring
example of CAI
acetazolamide
example of osmotic
mannitol
example of loop diuretics
bumetanide, furosemide, torasemide
example of thiazide
Bendroflumethiazide, chlortalidone, hydrochlorthiazide, indapamide, metolazone, clopamide
example of k-sparring
amiloride, eplerenone, spironolactone, traimterene
k-sparring diuretics that are also aldosterone antagonist
spironolactone and epleronone
this osmotic diuretic reduces intracrannial pressure and can be prescribed to patients with diabetes
mannitol
an a2 agonist that is converted centrally to methylnorepinephrine
Methyldopa
a2 agonists reduces ________
constriction
This reduces sympathetic outflow from CNS
methyldopa
decreases catecholamine release
methyldopa
reduces peripheral vascular resistance & cardiac output
methyldopa
Used primarily for hypertension of pregnancy
methyldopa
may cause guanabenz
methyldopa
may cause Little postural hypotension (orthostatic, dilated bv)
Methyldopa