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77 Cards in this Set

  • Front
  • Back
What are the 4 degrees of hypertension?
1. Labile
2. Borderline
3. Chronic (benign)
4. Malignant hypertension
Labile BP is chaeracterized by its ___(daily and random) and ___
variability
reactivity
Increase in BP by presence of medical personnel
White coat Hypertension
White coat Hypertension can give a ____ % increase in borderline hypertensive patients
10-60
Borderline BP
140/90
Degree of hypertension that results in premature death and disability if BP remains untreated
chronic (benign)
Degree of hypertension that is the silent killer
chronic (benign)
in chronic (benign) hypertension, death is usually due to ___
atherosclerotic complications
Most common form of hypertension
chronic (benign)
With Malignant hypertension, ___% die within 1 year if not treated
80-90
Swelling of the optic disc
papilledema
Form of hypertension that is associated with elevated R-A system
Malignant hypertension
Why is malignant hypertension associated with hypokalemia?
aldosterone is released and has Na retention so K is thrown away
most deaths from malignant hypertension are associated with ____
target organ damage
2 mechanisms that regulate BP
1. SNS
2. Endocrine
BP is regulated through the SNS by a negative feedback system sensed by ____
baroreceptors
7 components of the endocrine system that affect BP
1. catecholamines
2. renin--angiotensin-aldosterone system
3. ADH
4. Insulin-hyperinsulinemia-insulin resistance
5. Local hormone factors
6. ANH
7. Digitalis-like factor/Natriuretic factor/ouabain-like factor
What are the 4 local hormone factors that affect BP?
1. Kinins
2. PG
3. EDRF, NO
4. Endothelin (EDCF)
What 3 hormones affect CO and TPR?
1. catecholamines
2. renin-angiotensin-aldosterone system.
3. ADH (vasopressin)
ADH has ____ properties
fluid retention
ADH is released from the ___
posterior pituitary
Insulin/hyperinsulinemia/insulin resistance do 6 things:
1. Na retention called ____
2. Stimulates ____
3. Increases Vascular ____
4. Effects many transport systems on ____
5. With insulin resistance have elevated ___ and reduced ____
6. Insulin is a _____ promoter
1. antiatriuretic
2. SNS
3. responsiveness
4. VSM
5. LDL, HDL
6. growth
1. Kinins cause the release of ____ ,____, and ____,
2. all of which are ____
3. that have ____ and ____ affects
1. EDRF, NO, PG
2. vasodilators
3. diuretic, natriuretic
release sodium
natriuretic
retain sodium
antinatriuretic
____ are vasodilators that inhibit catecholamine release, and also have ___ and ____ properties
PG (prostaglandins)
natriuretic, diuretic
EDRF and NO relax VSM via ___
cGMP
EDRF
endothelium derived relaxation factor
Endothelin is a potent ____, and a mitogen (thing that can enlarge) for ____, and also has ___ properties
vasoconstrictor
VSM
Antinatriuretic
Where is the source of many local hormone factors?
endothelial cells of vessels
The major stimulus of ___ is an increase in Atrial P
ANH
___ functions as a volume regulator by increasing ___ and ___ loss, and also acts as a vaso____
ANH
Na
water
dilator
ANH has multiple antihypertensive actions by decreasing ____ and ____
aldosterone, ADH
ANH is natriuretic and diuretic by dilating afferent and constricting efferent arterioles to increase ____
GFR
ANH does what to VSM?
reduces contractile effects
ANH ___ renin release
decreases
ANH ____ responses to Ang II
antagonizes
ANH works through an increase in ____
cGMP
Stimulus for Digitalis-like factor/Natriuretic factor/ouabain-like factor is in increase in ____
volume
Digitalis inhibits the ____
Na/K ATPase
What is the effect on Na excretion for Digitalis-like factor/natriuretic factor/ouabain-like factor? The effect on BP?
natriuresis
increase
Digitalis-like factor/natriuretic factor/ouabain-like factor ____ intracellular Na and Ca, ____ NE uptake, and enhanced _____
increase
reduce
vasoconstriction
The kidney does volume regulation by long term control, ____ diuresis, and infinite negative feedback systems
pressure
A few mmHg pressure change can get a ____ % change in urinary output if system operating normally
50-100
____ develops when volume regulation system in kidney fails
hypertension
Once disturbances in volume regulation of kidney system fails, these 3 other systems are involved
1. structural changes
2. renal changes
3. baroreceptor function
primary or idopathic hypertension is ___% of all cases
90-95
Is there a cure for hypertension?
no, control only
___% of essentail hypertensives are salt sensitive
60
In the US we consume about ___ gms/day of NaCl (or ___ gm of Na/day)
9-12, 4-5
hypertension in people over 65: ____, in people under 34_____
>50%
3%
____ are gradually "reset" reduced sensitivity with age
baroreceptors
____% of people with hypertension are insulin resistant
50
The kidney can lose its source of antihyptertensive fuction with loss of ___ and ____
kinins
PG
In the 2 kidney, 1 clip model, initially ___ is elevated to bring BP up, hypertension occurs ___
renin
always
in the 1 kidney, 1 clip model, renin is ____ then excess volume and sodium and pressure shuts down renin release, hypertension occurs ____
initially elevated
always
medullary region of adrenal gland: ___
pheochromocytoma
A tumor of ____ cells can be removed to bring BP down in 1% of cases
chromaffin
What 3 things make up the symtomatic triad for diagnosis of chromaffin cells tumor causing high BP?
1. tachycardia
2. headaches
3. attacks of sweating
Overproduction of ____ causes ~10% of secondary hypertension and is called _____
aldosterone
primary aldosteronism
___ syndrome for high BP should be considered if patient has hypokalemis (<3.0 meq/L)
Conns
hypokalemia can lead to ____
nephropathy
In primary aldosteronism, plasma renin is ____, and is not stimulated by low sodium diet. ____ also is not reduced by high sodium diet
low
aldosterone
____ test shows that ratio of aldo/renin does not fall in Conn's syndrome patients
oral captopril (ace inhibitor)
In primary aldoteronism, CO is ___ and TPR is ___
elevated
elevated
this can result with a functional block of adrenal enzymes to disrupt ACTH feedback or some central ACTH overproduction, and could also occur with conditions that elevate renin and/or Angio II
secondary aldosteronism
____ is less than 0.1% of high BP, and has an increase in ____, with a 20% increase in adrenal clucocorticoids. TPR is ____
cushing syndrome
increased
Glucocorticoids can:
___ vascular reactivity to catecholamines, ___ catecholamine uptake, and ___ the synth of angiotensinogen and increase the # of AT1 receptors
enhance
inhibit
increase
Glucocorticoids ___ CO
increase
Excess glucocorticoids can have mineralocorticoid effects that have na and water ____ and increase ____
retention
volume
____ is high BP during late pregancy, with proteinuria or edema. It is a ___ disorder, when diastolic P increases to 95 mmHg, preinatal mortality increases ___ times
preeclampsia
multisystemic
3
In normal pregancy volume is increased by ____%
40-60
TPR in a normal pregancy should ___ and are ____ to angio II although RAS is elevated and BP may even fall
decrease
hyporesponsive
in preeclamptics, volume may ____, CO is ___ to normotensive controls, TPR does ____, responsiveness to Ang II, catecholamines, ADH is ____, and there is a ___ fold risk for diabetes
not increase
similar
increase
elevated
2
in preclampsia there is an increase in 4 things, a decrease in 3, and a greater ____ resistance
increase: ET1 (endothelin), deoxycorticosterone, natriuretic factor, AT1 receptors
decrease: EDRF (NO), Prostacyclin/thromboxane ratio, Vitamin E, lipid peroxides ratio
greater insulin resistance
When systolic BP is > 150 mmHg, risk of atherosclerosis is ____
doubled
When systolic pressure > 160 mmHg, risk of stroke is increased ___ times
4