HTN: Exam 1 Flashcards
(37 cards)
The “idea” BP
119/79
CPG NEW BP Guidelines
see pics
**CAN BE ONE OR THE OTHER
SBP OR DBP
doesn’t need to be both #s to be in that category!!!

NORMAL BP
-
SBP
- <120
-
DBP
- <80
- Ideal== 119/79
ELEVATED BP
used to be “Pre-HTN”
SBP== 120-129
OR
DBP== <80
Hypertension
Stage 1
SBP== 130-139
OR
DBP== 80-89
HTN
Stage 2
SBP== >/= 140
OR
DBP== >/= 90
NOTE:
** indiv’s w/ SBP and DBP in 2 categories should be designated to _______
HIGHER BP category
BP======
controlled by what 2 mechs?
BP= CO(HR*SV) * TPR
controlled by:
1. ANS
2. Hormonal system (Renin-angio system)
Types of BP
Primary
essential or idiopathic
from Risk factors–90% of people
ex. sedentary, stress, genetics
Types of BP
Secondary
caused by SOMETHING ELSE IN SYSTEM
ex. kidney dis.,
hard to treat
Types of BP:
Labile
fluctuating BP
hormonal affects
Types of BP
Anxiety induced HTN
“white coat HTN
exactly what it sounds like
HTN:
The Sequela
explain
-
Initially
-
INC SNS stim from risk factors cause:
- periph vasoconstrict
- inc blood plasma vol
- sustained + inotrope and/or + chronotropic effect
- High Na+ diet==> inc plasma volume
- lack of ex, inact, sedent,
- decondition heart==> non-optimal SV w/ reflexive + chrono effect
- obesity ==> inc press in abd area/LE/UE
- inc’s TPR
- sleep deprivation
- activates SNS
- chronotropic effect==INC HR/BP
- activates SNS
-
INC SNS stim from risk factors cause:
**ALL of this produces overload in L. VENT, aorta, and periph arteries=====> EARLY HTN
Sustained HTN
DECd compliance/distensibility of aa’s:
elastic tissue of aa’s and arterioles are replaced by fibrous collagen tissue =====
no recoil
prolonged or irreversible HTN
sustained HTN
diminished SV is detected by KIDNEYS—->
activates RAS causing vasoconstriction and Na+/H2O retention=====
prolonged or irrev. HTN
Sustained HTN
DEC compliance of CA’s leads to DEC O2 supply to myocardium ======
prolonged or irrev. HTN
sustained HTN
L. vent working against elevated HTN for prolonged pds will become HYPERTROPHIED or rigid or less kinetic
this cannot be reduced =====
prolonged or irrev. HTN
Sx’s HTN
early Tx the better!!!!
- asymptomatic
- or just used to sx’s
- HA
- vertigo
- flushed face
- epistaxis
- nausea, dry heave
- blurred vision
- nocturnal urinary freq
- Nocturia
- dyspnea
- angina
Basic med. tx HTN
Goal (3)
- normalize BP BOTH @ rest and BP resp during exertion
-
PREVENT prolonged HTN patho
- LVH, art stenosis, CVA
- IMPROVE CA O2 supply
*LIFE-STYLE CHANGES!!!
MED TX HTN
meds
beta blocks
alpha blocks
ACE inhibitors
Ca+ channel blocks
Diuretics
HTN Tx
Category + Tx
-
Pre-HTN
- lifestyle mod
-
stage 1 HTN
- diuretics
- maybe ACE inhibitors
-
Stage 2 HTN
-
combo of 2+ meds or cocktail
-
ALWAYS INCLUDES BETA BLOCKER
-
**blunted HR resp***
- use borg!!!
-
**blunted HR resp***
-
ALWAYS INCLUDES BETA BLOCKER
-
combo of 2+ meds or cocktail
Systemic effects HTN
Brain
cerebral aneurysm
Hemorrhagic CVA
Systemic effects HTN
Eyes
Retinopathy—-arterioloar damage
Systemic effects HTN
Atherosclerosis