EXAM #2: HYPERTENSION Flashcards
What is the life-time risk for a normotensive person at age 55 for developing HTN?
90%
How much does an increase in 20 mmHg (systolic) or 10 mmHg diastolic increase the risk for CVD?
Doubles it for EACH increase
How much does HTN increase the risk for CVD in women?
Triples the risk
In men, closer to doubles the risk
What is the general trend between HTN and mortality?
Increased HTN= increased mortality
Does JNC VIII define HTN?
No
What does JNC VIII do?
Recommends BP levels to begin drug therapy
What are the determinants from JNC VIII that play into the decision of when to start drug therapy for HTN?
1) Age
2) Coexisting disease i.e.
- DM
- Chronic renal disease
3) Race
IF the BP cuff is too loose, what will happen to your reading?
Overestimation of the BP
IF the BP cuff is too-narrow, what will happen to the BP reading?
Overestimate–it takes more pressure than usual to reach pressures that will occlude the artery
What are the five Korotkoff sounds?
1) Tapping sounds when the brachial artery opens
2) Soft murmurs
3) Louder murmurs
4) Muffling
5) Disappearance
Note that you measure 1st and 5th sounds in adults
What is borderline HTN?
BP occasionally exceeds normal
What is primary HTN?
Elevated BP without a known cause
*Note that 90% of HTN is PRIMARY
What is secondary HTN?
Elevated BP WITH a known cause
What is a HTN emergency?
- Life-threatening circumstance
- Focal/ generalized sx. of target-organ damage
*Requires rapid reduction of BP and typically involves a dBP greater than 120 mmHg
What are signs of target-organ damage?
1) Retinal damage
2) CNS sx.
What is malignant HTN?
HTN retinopathy grade III and IV WITH severe BP elevation
*Evidence of ongoing target organ damage (to the brain b/c the retina is part of the brain)
What is HTN encephalopathy?
Signs/sx. of cerebral edema caused by severe rise in BP