Cardio - Systemic Hypertension Flashcards

1
Q

How is BP measured?

A

Directly (intra-arterial) or indirectly (doppler/oscillometric)

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2
Q

What BP measurement is more accurate for smaller patients?

A

Doppler

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3
Q

Where should BP be measured in cats?

A

tail base

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4
Q

Where should BP be measured in dogs?

A

non-dependent limbs

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5
Q

How big should the BP cuff be in dogs vs. cats?

A

Dogs = 40% of circumference

Cats = 30-40% of circumference

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6
Q

What causes SHT in humans?

A

95% primary

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7
Q

What type of SHT do dogs and cats have?

A

secondary (esp. animals > 10 yo)

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8
Q

What diseases cmmonly have secondary SHT in dogs?

A

Hyperadrenocorticism, CKD

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9
Q

What diseases commonly have secondary SHT in cats?

A

hyperthyroidism, CKD

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10
Q

Heart disease _____ cause SHT, but SHT can _____ or _____ heart disease.

A

does not, cause, worsen

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11
Q

What organs are more prone to SHT?

A

Kidney, eye, brain, heart, blood vessels

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12
Q

What damage does SHT have on the kidneys?

A

Progression of CKD, proteinuria

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13
Q

What damage does SHT have on the eye?

A

Retinal hemorrhage and detachment

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14
Q

What damage does SHT have on the brain?

A

Hemorrhagic stroke

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15
Q

What damage does SHT have on the heart?

A

LV hypertrophy

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16
Q

What damage does SHT have on blood vessels?

A

hemorrhage

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17
Q

What clinical signs are associated with SHT and the kidney?

A

PU/PD

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18
Q

What clinical signs are associated with SHT and the eye?

A

acute blindness

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19
Q

What clinical signs are associated with SHT and the brain?

A

Forebrain signs, seizures

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20
Q

What clinical signs are associated with SHT and the heart?

A

heart murmur, S4 gallop, CHF

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21
Q

What clinical signs are associated with SHT and blood vessels?

A

Epistaxis

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22
Q

What diagnostic tests can be run when SHT is suspected to involve the kidney?

A

BUN/crea, U/A, UP:C

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23
Q

What diagnostic tests can be run when SHT is suspected to involve the eye?

A

fundic exam

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24
Q

What diagnostic tests can be run when SHT is suspected to involve the brain?

A

neuro exam, MRI

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25
What diagnostic tests can be run when SHT is suspected to involve the heart?
Echo
26
What diagnostic tests can be run when SHT is suspected to involve the blood vessels?
PE
27
What is normal BP (systolic)?
120-130 mmHg
28
What happens in "white coat" effect?
Situational hypertension, no official cutoff for high BP in a very stressed patient
29
What is abnormal BP (systolic) AKA SHT?
\>140 mmHg
30
What BP range is considered pre-hypertensive? What is the risk of future target organ damage?
140-159; mild
31
What BP range is considered truly hypertensive? What is the risk of future target organ damage?
160-179; moderate
32
What BP range is considered severely hypertensive? What is the risk of future target organ damage?
\>180; severe
33
What 4 types of patients should be screened for SHT?
1. Those with evidence of target organ damage 2. Those with diseases that cause secondary SHT 3. Those receiving vasodilator therapy 4. Those with diseases that are worsened by SHT (DMVD)
34
When is routine BP screening recommended?
Dogs and cats \>9 years
35
A
Systolic BP \>160 mmHg
36
B
Evidence of TOD
37
C
TREAT!
38
D
No evidence of TOD
39
E
BP 160-179 mmHg: repeat BP twice within 8 weeks
40
F
\<160 mmHg: recheck in 3-6 months
41
G
\>160 mmHg: TREAT
42
H
BP \> 180 mmHg: repeat BP twice within 2 weeks
43
I
\<160 mmHg: recheck in 3-6 months
44
J
\>180 mmHg: TREAT
45
What are the 2 goals of SHT tx?
Control BP and treat underlying disease
46
What do ACEi do to BP?
Decrease 10-15 mmHg
47
What effect do ACEi have on the renal efferent arteriole?
Decrease glomerular hypertension and proteinuria
48
What effect do ACEi have on RAAS?
inhibits
49
What drug class is telmisartan?
AT receptor blocker
50
What effect does telmisartan have on BP?
Decreases 20-25 mmHg
51
What effect does telmisartan have on the renal efferent arteriole?
Decreased glomerular hypertension and proteinuria
52
What effect does telmisartan have on RAAS?
inhibits
53
What drug class is amlopidine?
Ca channel blocker
54
What effect does amlopidine have on BP?
Decreases 30-60+ mmHg
55
What effect does amlodipine have on the renal efferent arteriole?
No effect
56
What effect does amlodipine have on RAAS?
activates
57
When should BP be rechecked in non-emergent cases?
7-10d after starting an antihypertensive
58
What should you do if you recheck a non-emergent BP and it is \>140 mmHg?
Increase hypertensive dose or add 2nd agent
59
What should you do if you recheck a non-emergent BP and it is hypotensive?
Decrease anti-hypertensive dose
60
What should you do if you recheck a non-emergent BP and it is normotensive?
recheck again q 3-4 months
61
What should be done in cases of emergent BP issues (i.e. retinal detachment)?
Hospitalization, amlodipine or hydralazine, recheck BP q 2 hours