Oct. 7, 2019 Flashcards

1
Q

What % of HTN cases are PRIMARY HTN (1 HTN)?

A

About 90%

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2
Q

Is the ETIOLOGY of 1 HTN known or unknown?

A

Unknown

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3
Q

When the ETIOLOGY is unknown this is referred to as..?

A

IDIOPATHIC

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4
Q

Is 1 HTN usually d/t one cause or multiple causes?

A

It is usually MULTIFACTORIAL

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5
Q

What often results in 1 HTN?

A

If one or more of the 4 major controls is not working

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6
Q

What are the 4 major controls?

A

1) Baroreceptors
2) RAAS
3) Volume regulation
4) Vascular autoregulation

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7
Q

What is SYSTOLIC HTN?

A

When pressure is elevated during the pumping phase of the heart S = above 140, but D is normal still

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8
Q

Why does the risk of HTN inc after age 50?

A
  • Because as a person ages, they are more likely to experience ATHEROSCLEROSIS, dec B flow = inc BP
  • As a person ages there are degenerative changes to tissues, poor vessel compliance = dec elasticity = inc S
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9
Q

Is there an inc or dec in CO w 1 HTN?

A

inc

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10
Q

What % of HTN cases are SECONDARY HTN (2 HTN)?

A

About 5-10%

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11
Q

Is the ETIOLOGY of 2 HTN known or unknown?

A

Known

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12
Q

T or F:

2 HTN is a PRIMARY DISEASE

A

F

2 HTN is a SECONDARY DISEASE because it arises as a result of another problem

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13
Q

In majority of cases, what is a main cause of 2 HTN?

A

Problems w the KIDNEYS - RENOVASCULAR

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14
Q

What happens when there is a dec in RENAL PERFUSION?

A

The RAAS loop is initiated

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15
Q

What is WHITE COAT HTN?

A

Elevated BP when in a clinical setting, otherwise normal BP

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16
Q

What is GESTATIONAL HTN?

A

Elevated BP during pregnancy, will return to normal after in most cases

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17
Q

What is MALIGNANT HTN?

A

D = greater than 120

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18
Q

What are 3 other names for MALIGNANT HTN?

A

Severe, persistent, or resistant HTN

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19
Q

What kind of CA is associated w MALIGNANT HTN?

A

No CA, it has nothing to do with CA

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20
Q

What is the 1st MNFT of HTN?

A

Elevated BP, which can only be detected when BP is tested, for this reason HTN is known as the silent killer

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21
Q

What are some MNFTS that occur when HTN has progressed?

A
  • Headaches in the morning
  • Palpitations
  • Dizziness
22
Q

Why would headaches as a result of HTN occur in the morning?

A

Because BP is highest in the morning (circadian rhythm)

23
Q

What are palpitations?

A

Feelings or sensations that your heart is pounding or racing, unpleasant awareness of you own heart beat

24
Q

What is a MNFT of severe HTN?

A

Organ damage

25
Before treating HTN, what *must* be done?
You *must* confirm the type of HTN
26
When treating MILD HTN, what is the 1st type of Tx?
Lifestyle change - diet, activity, no smoking, dec alcohol consumption
27
What is DASH?
Dietary Approaches to Stop HTN
28
When treating MILD HTN, what is the 2nd type of Tx?
DIURETICS
29
What are the therapeutic effects of using DIURETICS?
- Operates at the KIDNEYS - Inc PERMB in NEPHRONS - Enhance volume of FILTRATE - Inc urine output -> dec B volume -> dec BP
30
When treating MILD HTN, what is the last type of Tx?
Drugs - ACE Inhibitors - Ca channel blockers = VASODIL and dec HR - Angiotensin 2 receptor blockers = VASODIL
31
What is PERIPHERAL VASCULAR DISEASE?
PVD is a blood circulation disorder that causes the blood vessels outside of your heart and brain to narrow, block, or spasm. This can happen in your arteries, veins, or lymphatic vessels
32
Where does PVD occur most often?
In the ARTERIES
33
What are the 2 types of PVD?
1) ACUTE ARTERIAL OCCLUSION | 2) ATHEROSCLEROTIC OCCLUSIVE DISEASE
34
What is ACUTE ARTERIAL OCCLUSION?
Rapidly onset ISCHEMIA d/t occlusion in vessel
35
What is the occluding culprit in AAO?
A THROMBUS or EMBOLUS that disrupts PERFUSION
36
What is a THROMBUS?
A B CLOT, stationary but pieces can break off and become EMBOLI
37
What is an EMBOLUS?
Anything that is moving through the B when it should not be
38
What are the 7 Ps (MNFTS) of AAO?
1) Pain 2) Pallor 3) Pulselessness 4) Polar 5) Paralysis 6) Parasthesis 7) Pistol shot
39
What is a DOPPLER ULTRASOUND used for?
Assessing B flow
40
What are the Tx options for AAO?
- Surgery (a last resort) - Anticoagulants (inhibits PLATELETS) - Thrombolytics (dissolve CLOT)
41
What is ATHEROSCLEROTIC OCCLUSIVE DISEASE?
Blockage or narrowing of an artery in the legs (or rarely the arms), usually due to atherosclerosis
42
Which ARTERIES are most often affected by AOD?
The FEMORAL or POPLITEAL ARTERIES
43
T or F: | AOD has a gradual onset
T
44
In what 2 gorups of people is AOD more common?
1) The elderly | 2) Diabetics
45
What is the body's immediate response to impaired PERF?
- Stat VASODIL - Early ANAEROBIC METABOLISM d/t HYPOXIA - Later COLLATERALIZATION (angiogenesis to bypass occlusion)
46
What happens to VENOUS and LYMPHATIC flow during AOD?
It stops; VENOSTASIS and LYMPHATICATASIS
47
Why does EDEMA occur d/t AOD?
Because there is a dec in B flow, waste and fluid build-up in the INTERSTITIAL SPACES
48
What is INTERMITTENT CLAUDICATION?
Pain when walking d/t inadequate B flow
49
What are some complications of AOD?
- Ulceration - Gangrene - Amputation
50
Tx steps: | 3
1) Identify the potential complications 2) Begin interventions to prevent complications 3) Deal w complications if they arise despite interventions