Antihypertensive Drugs Flashcards

(65 cards)

1
Q

amount of blood pump by the heart for one full minute

A

cardiac output

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2
Q

cardiac output formula

A

heart rate x stroke volume

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3
Q

the amount of blood that is pumped out of the ventricle with each heartbeat

A

stroke volume

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4
Q

normal stroke volume

A

70 ml per min

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5
Q

ability of the arteries to contstrict and dilate

A

total peripheral resistance

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6
Q

phaeochromocytoma only respond to one drug and that is?

A

regitine

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7
Q

Types of Hypertension

*Ninety percent of these cases have no
known cause
* There is elevated total peripheral resistance
* The organs are perfused effectively and
people with essential hypertension usually
exhibit no symptoms (“Silent Killer”)

A

Essential Hypertension (Primary
Hypertension)

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8
Q

Types of Hypertension

characterized by elevated blood
pressure due to a known cause

A

Secondary Hypertension

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8
Q

are antihypertensive agents that act
in the lungs to prevent the
conversion of angiotensin I into
angiotensin II, which is a potent
vasoconstrictor

A

Angiotensin-converting
enzymes inhibitors (ACE Inhibitors)

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9
Q

if you are losing sodium, what does your body retain?

A

potassium

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10
Q

side effect of ACE inhibitor

A

hyperkalemia

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11
Q

suffix of ACE inhibitor

A

PRIL

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12
Q

hypertensive drug that can be used as diabetic nephropathy

A

ACE Inhibitor

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13
Q

the only ACE inhibitor associated with sometimes-fatal pancytopenia, cough, and GI distress.

A

captopril

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13
Q

type of hypertensive drugs

blocking vasoconstriction and release of
aldosterone through selective
blocking of angiotensin II receptors
in vascular smooth muscles and
adrenal cortex.

A

Angiotensin II-Receptor Blockers (ARBs)

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13
Q

is ACE inhibitors allowed to pregnant women?

A

NO

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14
Q

ARBs suffix

A

sartan

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14
Q

if th patient with heart failure does not respond to ACE, what hypertensive drug type can she use?

A

ARBs

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15
Q

both of this type of drug can slow down process of renal diabetes

A

ARBs and ACE

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16
Q

best nursing consideration for ARBs?

A

Administer drug with food to prevent GI distress

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17
Q

type of hypertensive drug

directly inhibits renin and
inhibiting the conversion of angiotensinogen
to angiotensin I

A

Renin Inhibitors

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18
Q

Sodium influx will most likely cause?

A

muscle contraction

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18
Q

type of hypertensive drug

  • inhibit the movement of calcium ions across
    myocardial and arterial muscle cell membranes.

*As a result, action potential of these cells are
altered and cell contractions are blocked.

*Resultant effects include: depressed myocardial contractility, slow cardiac impulse in conductive tissues, and arterial dilation and relaxation.

A

Calcium-Channel Blockers

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18
Q

Sodium outflux will most likely cause?

A

relaxation

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19
Since these drugs can significantly decrease cardiac workload, they are effective in treatment of angina.
Calcium-Channel Blockers
19
safe for children, the drug group that is first considered in cases of hypertension
calcium-channel blockers
19
Calcium-Channel Blockers suffix
dipine
20
type of hypertensive drug - exert their effect by acting directly on smooth muscles. -consequently, there will be muscle relaxation and vasodilation. Both of these will cause drop in blood pressure. RESERVE FOR SEVERE HYPERTENSIVE
VASODILATORS
20
sample of VASODILATORS
hydralazine (oral, IV, Im) minoxidil (oral) nitropruisside (IV)
20
drug used in maintaining controlled hypotension during surgery.
Nitroprusside (vasodilator)
20
too much Nitroprusside can cause?
cyanide toxicity and hypothyroidism.
21
type of hypertensive drugs - drugs that increase the excretion of sodium and water from the kidney -often the first agents tried in mild hypertension (i.e. Thiazide & Loop) -also use to manage edema (excessive accumulation of fluids) and glaucoma (an eye disease that is characterized by increased intraocular pressure (IOP)
Diuretic Agents
21
It causes active pumping out of chloride from the cells lining the ascending limb of Loop of Henle and distal tubule by blocking the chloride pump. Since sodium passively moves with chloride to maintain electrical neutrality, both sodium and chloride are excreted in the urine
Thiazide Diuretics
22
adverse effect of thiazide that affects women
slightly-alkalinized urine (can lead to bladder infections)
23
*Referred to as high-ceiling diuretics because they are capable of causing greater degree of diuresis *Blocks the action of chloride pump in the ascending limb of the loop of Henle, where 30% of sodium is normally reabsorbed. * Exerts the same effect on the descending limb of loop of Henle and distal tubule causing sodium-rich urine.
Loop Diuretics
23
example of lood dieuretics
furosemide torsemide
23
indication of loop fieuretics
acute HF, acute pulmonary edema
24
Drug of choice when rapid and extensive diuresis is needed. It can produce a fluid loss up to 20 pounds per day.
loop dieuretics
24
adverse effects of loop dieureics
CNS: dizziness; CV: hypotension, GI:GI upset GU: hypokalemia (can precipitate hyperglycemia), increased bicarbonate excretion, hypocalcemia and tetany EENT: ototoxicity, reversible loss of hearing
25
normal potassium value
3.5 - 5.0
26
type of dieuretics *Relatively mild diuretics which affects the proximal convoluted tubule * Inhibits the action of the enzyme carbonic anhydrase, the catalyst for the formation of sodium bicarbonate stored as alkaline reserve in the renal tubules and is important for the excretion of hydrogen. * It slows down the movement of hydrogen ions which leads to greater amount of sodium and bicarbonate lost in the urine
Carbonic Anhydrase Inhibitors Diuretics
27
Carbonic Anhydrase Inhibitors Diuretics suffix
mide
27
* often used for the treatment of glaucoma. Inhibition of carbonic anhydrase results in decreased secretion of aqueous humor of the eyes. * Also used as adjunct to other diuretics when more intense diuresis is needed.
Carbonic Anhydrase Inhibitors Diuretics
28
* Less powerful than loop diuretics but they retain potassium instead of wasting it. * used for patients who have high risk for hypokalemia associated with diuretic use.
Potassium-Sparing Diuretics
29
what drug combination can be used to lessen the effect of potassium sparing dieuretics
furozemide
30
known potassium sparing dieuretics
Spironolactone
31
* used as adjuncts with thiazide or loop diuretics or in patients who are especially at risk if hypokalemia develops.
Potassium-Sparing Diuretics
32
* Only one osmotic diuretic is currently available,
mannitol (Osmitrol).
32
type of dieuretics exerts their therapeutic effect by pulling water into the renal tubule without loss of sodium.
Osmotic Diuretics
33
used to decrease IOP before eye surgery or during acute attacks of glaucoma * Diuretic of choice in cases of increased cranial pressure (e.g. Stroke) or acute renal failure
osmotic diuretic
34
where does alpha 1 can be located
blood vessels
35
what does alpha 1 do
vasoconstriclation
36
where does alpha 2 can be located
pre synapses
37
beta 1 is a ___ receptor
heart
38
what happens if you stimulate beta 1
increae heart rate
39
beta 2 can be found in?
lungs
40
blocks beta-1 receptors in the heart thereby causing decrease in cardiac output resulting to decrease in blood pressure
Selective Beta-blockers
41
blocks beta-1 receptors in the heart (decrease in cardiac output) and the RAA system
Non-Selective Beta-blockers
42
beta 1 blocker suffix
lol
43
what does aplha 1 blocker do
vasodilation
43
used to diagnose and manage episodes of pheochromocytoma, but they have limited usefulness in essential hypertension
Alpha- Blockers (Alpha 1 and 2 Adrenergic Blockers)
44
suffix of alpha 1 blocker
osin
45
the drug of choice for pheochromocytoma
Regitine
45
stimulate the alpha2- receptors in the CNS and inhibit the cardiovascular centers, leading to a decrease in sympathetic outflow from the CNS and (NOREPHINEPRINE) a resultant drop in blood pressure
Centrally Acting Adrenergic Drugs (i.e. Alpha2-agonists)
46
anti hypertensive drug available for pregnant women
methyldopa