Cardio 10 Flashcards

(46 cards)

1
Q

Regulation of blood pressure (BP)

A

Baroreceptors
Endothelial factors
Kidneys
Genetic influences

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2
Q

BP =

A

cardiac output (CO) x pulmonary vascular resistance (PVR)

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3
Q

Most essential: patients with hypertension

A

(HTN) have increased peripheral resistance and normal CO

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4
Q

Baroreceptor how do they work

A

Baroreceptor exerts control of mean arterial pressure as a negative feedback loop. Nerve impulses from arterial baroreceptors are tonically active; increases in arterial blood pressure will result in an increased rate of impulse firing.

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5
Q

Endotheial Factors how do they work

A

These endothelial factors modulate the effects of norepinephrine (NE) released by sympathetic nerves (SN), and the effects of tissue metabolites and humoral factors. The three most important endothelial-derived substances are: nitric oxide (NO), endothelin (ET-1), and prostacyclin (PGI2).

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6
Q

Most common cause of HTN

A

primary (95%) caused by atherosclerosis

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7
Q

other kind of HTN

A

secondar (5%) caused by adrenal, renal factors

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8
Q

BP relies on

A

balance of CO and PVR

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9
Q

HTN lab workup 7 items

A
Electrocardiography (ECG)
Urine analysis
Blood glucose
Serum potassium, creatinine, calcium
Lipid profile
C-reactive protein
Homocysteine
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10
Q

When can you dx HTN

A

HTN on two separate readings

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11
Q

Single high reading on one occasions

A

dx elevated BP

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12
Q

normal BP

A

less than 120 and less than 80

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13
Q

early HTN

A

120 to 139 and 80 to 89

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14
Q

stage 1

A

140 to 159 and 90 to 99

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15
Q

stage 2

A

greater than or equal to 160 or greater than or equal to 100

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16
Q

The old term “pre-hypertension” no longer used

A

Patients did not appreciate degree of risk or true impact of being outside of normal range

new term is early hypertension

Therapy adherence there an issue

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17
Q

National Guidelines Updates older adults

A

Changes definitions of control for older adults to allow higher values to avoid orthostatic falls and increase adherence

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18
Q

National Guidelines Updates medications (two items)

A

Beta blockers no longer first-line drugs

Emphasis on multiple therapeutic agents at lower doses rather than one agent at maximum dose

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19
Q

Goal of HTN treatment

Three items

A

Prevent the rise of BP with age.

Improve control of HTN to below 140/90 mm Hg

The primary focus should be on obtaining the systolic blood pressure (SBP) goal

20
Q

In patients with concurrent HTN

A

and diabetes or renal disease, the BP goal is less than 130/80 mm Hg

21
Q

There is a little correlation of ___ with HTN

22
Q

Goals of Treatment Continued for HTN Two Items

A

Improve recognition of the importance of risk factors on the development of HTN.
Reduce ethnic, socioeconomic, and regional variations in HTN care.

23
Q

Step one and two of treatment of HTN

A

lifesytle

medication

24
Q

Benefits of Lowering BP

A

Storke reduced 35 to 50%
MI by 20% to 25%
Heart Faliure 50%

25
In stage 1 HTN and more cardiovascular disease risk factors, achieving a sustained 12 mm Hg reduction in SBP over 10 years will prevent
1 death/11 patients treated.
26
DASH diet
Dietary Approaches to Stop Hypertension (DASH) diet Dietary sodium reduction (most consume too much; not a restriction, but conscious effort) Limit alcohol consumption Physical activity
27
For every 10% reduction in BMI over 30 you will see
a significant reduction in risk for cardiovascular disease
28
ETOH to recomendations
0 to 1 for women | 0 to 2 for men
29
What is very important to lower BP
physical activity. This works even if you are overweight
30
physcial activity recomendation
150 min a week
31
Stepped Therapy (first 4 steps)
Set an appropriate minimum therapeutic BP goal: no longer less than 120/80. (under 140/90 RESTING) Be patient, and work on attaining the BP goal over many weeks to months. Titrate BP medications no more often than every 4 to 6 weeks. Do not automatically assign to the drug symptoms reported by patients.
32
Lisinopril side effect
cough
33
Stepped therapy (5 through 7)
Plan at the beginning of therapy for the use of more than one drug. Treat to achieve goal SBP in older adults even if diastolic blood pressure is normal, but go more slowly, allowing SBP of 150 to 160 mm Hg if asymptomatic. Extracellular fluid volume must be controlled to achieve BP goals.
34
Initial therapy for HTN
Angiotensin-converting enzyme inhibitors (ACEIs), or calcium channel blockers (CCBs) if:
35
ACE or CCB is used if
BP is more than 20 mm Hg above the systolic goal or 10 mm Hg above the diastolic goal
36
early HTN you may want to
start with a mild diuretic or add on quickly to achieve goals
37
Drugs that work on cardiac output
Beta blockers Calcium channel blockers Diuretics
38
Drugs that work on total peripheral resistance
``` ACEIs Angiotensin II receptor blockers (ARBs) Direct renin inhibitors Beta blockers Alpha agonists CCBs Diuretics Sympatholytics Vasodilators ```
39
Drugs indicated for Heart Failure
Diuretics, beta blockers, ACEIs, ARBs, aldosterone antagonists
40
Drugs indicated post MI
Beta blockers, ACEIs, aldosterone antagonists
41
Drugs indicated for High coronary disease risk
Diuretics, beta blockers, ACEIs, CCBs
42
early hypertension probably will use
diuretic
43
stage one HTN will likely use
ACE or CCB
44
Drugs indicated for Diabetes and HTN
Diuretics, ACEIs, ARBs, CCBs
45
Drugs indicated for CKD and HTN
ACEIs, ARBs until stage 3 chronic kidney disease (CKD)
46
Drugs indicated with recurrent stroke prevention and HTN
Diuretics, ACEIs