Term
| Regulation of Blood Pressure (7) |
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Definition
cardiac output and peripheral vascular resistance
arterioles and venules-autoregulation
ANS
heart rate and stroke volume
fluid volume
neurohormonal mediators
renin/angiotensin/aldosterone |
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Term
| Classification of Hypertension (SBP, DBP, and recommended follow up) |
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Definition
--Normal = SBP <120 DBP <80; check in 2 yrs
-- prehypertension = SBP 120-139 DBP 80-89; check in 1 yr
-- hypertension (stage 1) SBP 140-159 DBP 90-99; eval 1 wk
-- HT (stage 2) = SBP >160 DBP >100; eval immediately |
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Term
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Definition
may be asymptomatic
headache is common
dizziness
N&V
visual disturbances
renal insufficiency |
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Term
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Definition
-dizziness or hypotension with change in posture
- usually caused by volume depletion
- could be caused my autonomic insufficiency |
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Term
| Differential Diagnosis of HT |
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Definition
- Primary (95%)
caused by increased peripheral resistance
results from vasoconstriction or narrowed peripheral blood vessels
increased workload and more and more pressure: afterload
- Secondary
multiple system involvement with direct or indirect effect on renal system
aldosterone, cortisol, and catecholamines in excess
chronic stress→ prolonged excess of catecholamines |
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Term
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Definition
Non-modifiable: Family history, Age, Ethnicity, Gender
Modifiable: Stress, food choices, obesity, alcohol dependence, smoking, caffeine consumption |
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