Block I: HTN Flashcards
what is the definition of HTN?
130/80 (AHA)
OR
140/90
HTN is a silent disease until []
target organ damage is manifested
[] HTN is a more powerful predictor of complications
systolic (in comparison to diastolic)
what are some major complications of HTN
- CAD
- stroke
- cerebral infarction
- ESRD
- CHF
- aortic dissection
[] HTN is more pathological and more likely to lead to CAD or stroke
SBP
[] are major causes of morbidity and mortality in essential HTN
cardiac complications
preventing [] is the main goal in HTN therapy
cardiac complications
what is normal BP (ACC)
120/80 or less
what is elevated BP (ACC)
120-129/ < 80
what is HTN stage I (ACC)
130-139/80-19
what HTN stage II (ACC)
140/90 +
what is the BP goal
130/80
*waiting to hear back from prof. young about what we need to know
what is primary/essential HTN
95% of cases where no cause can be identified , idiopathic
what are important factors in primary/essential HTN
- age 22-55 ys
- genetics
- increased salt
- obesity
- alcohol
- cigarette smoking
- NSAIDS
- psuedoephedrine
- metabolic syndrome
pt. with high BP should consume no more than [] Na per day
2.4 g (some guidelines, 1.5)
how does obesity contribute to HTN
- increases cardiovascular volume
- elevates CO
- weight reduction lowers BP modestly
how does alcohol contribute to HTN?
by possibly increasing catecholamine release
how does smoking increase bp?
increases plasma NE
is it benifical to increase exercise in an already active HTN patient?
not very, no
NSAIDS can increase BP by [] mmHg
5
what 2 drugs should be avoided in borderline hypertensive patients
psuedoephedrine, nsaid
what is the most common cause secondary HTN
renal disease
what is another common cause of secondary HTN (other than renal diseasE)
- diabetic nephropathy
- renal vascular HTN
- excessive renin release due to reduction in renal blood flow and perfusion pressure
- estrogen use
- hyperaldosteronism
- pheocrhomocytoma
- coarctation of aorta
- thyroid disease
- prgnancy
[] will occur if there is a reduction in renal perfusion
renin release from kindey -> raas -> htn
what effect does estrogen have of HTN
can cause small increase in BP
will cause volume expansion and increased activity of RAAS
does estrogne effect postmenopausal women and their BP?
no
how does primary aldosteronism affect BP
can increase by retaining Na and water
how does pheochromocytoma affect BP
increase NE from tumor on adrenal gland
how does coarctation of aorta affect BP
increase BP
how does hypothyroidism affect BP
elevates diastolic BP
how does hyperthyroidism affect BP
elevates systolic BP