HPN Flashcards

(70 cards)

1
Q
Deaths in hypertensive patients have been shown
to be due to 
1
2
3
4
A

stroke 45%, heart failure 35%,

kidney failure 3% and others 17%.

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2
Q
Factors increasing chances of dying in hypertensive
patients are: 
1
2
3
4
A

male patient, young patient, family

history, increasing diastolic pressur

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3
Q

For adults aged 18 years

and older hypertension is:

A
  • diastolic pressure >90 mmHg and/or

* systolic pressure >140 mmHg

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4
Q

•__________ is that of
≥ 140 mmHg in the presence of a diastolic
pressure <90 mmHg

A

Isolated systolic hypertension

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5
Q

__________ is the presence of
sustained hypertension in the absence of
underlying, potentially correctable kidney,
adrenal or other factors

A

Essential hypertension

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6
Q

____________is that with a diastolic
pressure >120 mmHg and exudative vasculopathy
in the retinal and kidney circulations

A

Malignant hypertension

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7
Q

_________ is a BP >140/90 mmHg
despite maximum dosage of tw o drugs for 3–4
months

A

Refractory hypertension

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8
Q

90% of HPN are ________

A

essential

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9
Q

What kind of HPN?

It is also more likely in patients
whose BP is responding poorly to drug therapy,
patients with well-controlled hypertension whose BP
begins to increase, and patients with accelerated or
malignant hypertension

A

Secondary hypertension

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10
Q

PE for secondary HPN

Abdominal systolic bruit

A

Kidney artery stenosis

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11
Q

PE for secondary HPN

Proteinuria, haematuria, casts

A

Glomerulonephritis

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12
Q

PE for secondary HPN

Bilateral kidney masses with or without haematuria

A

Polycystic disease

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13
Q

PE for secondary HPN

History of claudication and delayed femoral pulse

A

Coarctation of the aorta

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14
Q

PE for secondary HPN

Progressive nocturia, weakness

A

Primary aldosteronism (check serum potassium)

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15
Q

PE for secondary HPN

Paroxysmal hypertension with headache, pallor,
sweating, palpitations

A

Phaeochromocytoma

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16
Q

Renal Artery Stenosis

_______ kidney artery stenosis accounts for
the majority of cases, while ______
remains an important cause

A

Atherosclerotic

fibromuscular dysplasia

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17
Q

How record HPN?

A

On each occasion when the BP is taken, two or more
readings should be averaged. Wait at least 30 seconds
before repeating the procedure.

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18
Q

When to repeat BP readings?

A

If the first two readings differ by more than 6 mmHg systolic or 4 mmHg diastolic, more readings should be taken

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19
Q

Whom to measure sitting and standing BP?

A

Measure sitting and standing BP in elderly

and diabetic patients

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20
Q

If the initial reading is high (DBP >90 mmHg, SBP

>140 mmHg) repeat the measures after______

A

10 minutes of quiet rest.

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21
Q

The________ influence in the medical
practitioner’s office may cause higher readings so
measurement in other settings such as the home or
the workplace should be managed whenever possible.

A

‘white coat’

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22
Q

Initial diastolic BP readings of 115 mmHg or more,
particularly for patients with __________
may need immediate drug therapy

A

target organ damage,

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23
Q

If mild hypertension is found, observation with
repeated measurement over________months should be
followed before beginning therapy

A

3–6

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24
Q

This is required for the diagnosis and follow-up
of patients with fluctuating levels, borderline
hypertension or refractory hypertension (especially
where the ‘white coat’ effect may be significant

A

Ambulatory 24-hour monitoring

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25
``` Guidelines for ambulatory BP measurement: 1 2 3 4 5 ```
* unusual variability of office BP * marked discrepancy between office and house BP * resistance to drug treatment * suspected sleep apnoea * when two BP readings >140/90
26
These people have a type of conditioned response to the clinic or office setting and their home BP and ambulatory BP profiles are normal.
‘White coat’ hypertension
27
T or F Pts with ‘White coat’ hypertension They appear to be at low risk of cardiovascular disease but may progress to sustained hypertension
T
28
If the average diastolic BP at the initial visit is 90–100 mmHg, and there is no evidence of end organ damage, _____ is indicated
non-pharmacological therapy is indicated for a | 3-month period
29
Hovell has estimated that for every | 1 kg of weight lost, BP dropped________
by 2.5 mmHg | systolic and 1.5 mmHg diastolic
30
Drinking more than _______of alcohol a day raises BP and makes treatment of established hypertension more difficult.
20 g
31
Reduction or withdrawal of regular alcohol intake | reduces BP by ______
5–10 mmHg
32
Reduction of sodium intake to less than ______ | sodium per day is advised
100 mmol
33
_____ and_______ exercise helps to | reduce BP
Regular aerobic or isotonic
34
There is evidence that _______ and _______ supplementation can reduce BP
lacto–vegetarian diets and | magnesium
35
HPN Tx A period of _______weeks is needed for the effect to become fully apparent
4–6
36
Relatively ineffective combinations of anit HPN
* Diuretic and calcium-channel blocker | * β -blockers and ACE inhibitors
37
``` Undesirable combinations • More than one drug from a particular pharmacological group: — ___________(heart block, heart failure) — __________ (hyperkalaemia) ```
β -blockers and verapamil potassium-sparing diuretics and ACE inhibitors or ARB
38
_________ are good first-line therapy for | hypertension
Thiazides
39
___________ are less potent as antihypertensive agents but are indicated where there is concomitant cardiac or kidney failure and in resistant hypertension
Loop diuretics
40
________ are less effective where there is kidney | impairment
Thiazides
41
_______ may antagonise the antihypertensive | and natriuretic effectiveness of diuretics
NSAIDs
42
A diet high in potassium and magnesium should accompany _______ therapy (e.g. lentils, nuts, high fibre
diuretic
43
_______ has different properties to the thiazide | and loop diuretics and has less effect on serum lipids
Indapamide
44
NSAIDs may interfere with the hypotensive | effect of ________
β -blockers.
45
___________plus a β -blocker may unmask | conduction abnormalities causing heart block
Verapamil
46
• These drugs reduce BP by vasodilatation. • The properties of individual drugs vary, especially their effects on cardiac function
CCB
47
The ________ compounds (nifedipine and felodipine) tend to produce more vasodilatation and thus related side effects
dihydropyridine
48
Unlike verapamil or diltiazem (which slow the heart), ___________ drugs can be used safely with a β -blocker
dihydropyridine
49
_________ is contraindicated in second and third | degree heart block
Verapamil
50
______ and _______ should be used with | caution in patients with heart failure
Verapamil and diltiazem
51
Angiotensin-converting enzyme is responsible for 1 2 3
``` 1. converting angiotensin I to angiotensin II (a potent vasoconstrictor and 2. stimulator of aldosterone secretion) and 3. for the breakdown of bradykinin (a vasodilator). ```
52
Cough, which occurs in about _______of patients, may disappear with time or a reduction in dose but it often persists and requires a change in drug in some patients.
15%
53
_______ a potentially life-threatening condition, | may occur in 0.1–0.2% of subjects.
Angioedema,
54
These agents competitively block the binding of angiotensin II to type I angiotensin receptors and block the effects of angiotensin more selectively than the ACE inhibitors
Angiotensin II receptor | antagonists (sartans
55
They are useful alternatives for hypertensive patients who discontinue an ACE inhibitor because of cough and may be used in combination with thiazide diuretics.
Angiotensin II receptor | antagonists (sartans
56
A specific problem of this alpha blocker is the ‘firstdose phenomenon’; this involves acute syncope about 90 minutes after the first dose, hence treatment is best initiated at bedtime
Prazosin
57
Prazosin potentiates_______ and works best if used with them
β -blockers
58
Other than calcium-channel blockers these include hydralazine, minoxidil and diazoxide, which are not used for first-line therapy but for refractory hypertensive states and hypertensive emergencies
Vascular smooth muscle relaxants
59
example of such a central acting agent is______ which apparently stimulates the imidazoline receptors in the brain to inhibit sympathetic outflow in the body
moxonidine,
60
Typical presentations of hypertensive emergencies (which are rare) include
hypertensive encephalopathy, acute stroke, heart failure, dissecting aortic aneurysm and eclampsia.
61
BP goals in HPN Emergencies
Aim to reduce the BP by no more than 25% within the first 2 hours then towards 160/100 mmHg within 2 to 6 hours.
62
Isolated systolic hypertension is most frequently seen | in __________
elderly people
63
T or F
Patients with isolated systolic hypertension should be treated in the same way as those with classic systolic/diastolic hypertension
64
________exists where control has not been achieved despite reasonable treatment for 3–4 months
Refractory hypertension
65
_____ and_____ are preferable in the young hypertensive, with______ a second agent.
ACE inhibitors or calcium-channel blocking agents diuretics
66
Older patients may respond to ______
nonpharmacological | treatment.
67
Reducing dietary sodium is more beneficial than | with _______
younger patients.
68
Add only one agent at a time and wait about_______ | weeks between dosage adjustments
4
69
Older patients may respond better to 1 2 3
diuretics, | calcium-channel blockers and ACE inhibitors.
70
Younger patients may respond better to 1 2
β -blockers | or ACE inhibitors