Vasopressors-Hill Flashcards

1
Q

what starts the actions potential

A

entry of Na into the cell

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2
Q

Calcium primarily works on

A

the contractions

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3
Q

If we have lots of potassium we will see

A

an tall T wave

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4
Q

What is an antiarrythmic ?

A

used to treat disturbances off normal heart rythym
may have 1 or more action
can worsen or cause new arrythmias

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5
Q

What is a vasopressor?

A

used to treat hemodynamically unstability
cardiac post op
sepsis
CHF

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6
Q

What vasopressors naturally occur in the body?

A

epi, nori
vasopressin
dopamine

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7
Q

what are some side effects of vasopressors

A

decreased perfusion to periphery, increased heart rate

extravassion-can damage cell tissues

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8
Q

Class I antiarythmics are

A

Na channel blockers

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9
Q

Lidocaine is a

A

class 1 antiarrythmic-Na channel blocker

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10
Q

What does Lidocaine treat?

A

ventricular dysrythmias, PVC’s Vtach, Vib

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11
Q

How does lidocaine work

A

decreases cellular permiablity to NA

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12
Q

precautions with Lidocine!!!

A

do not use with AV blocks

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13
Q

Lidocaine toxicity

A

you want to decrease the rate after 24 hours of infusion

can cause seizures and coma

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14
Q

Procainamide is a

A

Na channel blocker

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15
Q

Procainamide is used when

A

Lidocaine is ineffective or contraindicated
-not as potent
max dose 17 mg/kg

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16
Q

Class 2 antiarrythmics are=

A

Beta Blockers

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17
Q

Labetalol as as _____ & _________

used for

A

vasopressor and chronotrophic effects
treats
a fib, a flutter, HTN,

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18
Q

When do we need to be cautious w/ Labetalol

A

in CHF and AV block patients

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19
Q

What can Labetalol mask?

A

Hypoglycemia

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20
Q

Propanolol is a __________

A

non-selective beta adrenergic blocker

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21
Q

Propanalol treats SVT, PVC

DECREASES everything HR, BP, nd Contractility

22
Q

Atenolol

A

is a beta 1 adrenergic blocking agent

23
Q

Atenolol is used to

A

treat post MI V-fib

monitor closely

24
Q

Metropolol is

A

beta 1 adrenergic clocking agent

reduces recurrence of MI and size of infarct

25
Class 3antiarrythmics prolong
phase 3 thus increasing reploarization and refractoriness
26
amiodarone is a
potassium channel blocker -prolongs phase 3
27
Amiarodarone has charcteristics of
all 4 classes | treats V-Tach and V-Fib-if they are unresponsive to other meds
28
side effects of amiodarone are
v tach, vfib, r on T, brasy, av block asystole, PATIENT WILL BE ADMITTED TO BE MONITORED LONG HALF LIFE
29
Class 4 antiarrythmics
Ca channel
30
a sign that lidocain has been used too much is
tingling on the lips *****
31
max dose of procainamide is
17 mg/kg
32
the best beta is
metropolol- opens up and relaxes
33
Cardizem is a
calcium channel blocker
34
cardizem treats
a flutter and afib
35
Use extreme cuation with cardizem and
CHF, cardiogenic shock, or betas
36
Verapamil is
calcium channel blocker | caustion w/ HTN pt
37
mag sulfate is drug of choice for
Torsades
38
what is the dose for mag sulfate
1-2 g in 50 ml of d5 over 5-10 minutes
39
Adenosine treats | how much
SVT | 612 mg IV 1-2 seconds
40
Atropine treats
asystole and symptoatic bradycardia
41
atropine works at what node
AV
42
Vasopressin affects both
rythm and pressure
43
if patient is flat lining should we give epi or vaso first
vaso | wait 1 miutes before giving epi
44
dopamine effects
blood pressure
45
levophed affects
blood pressure(vasopressor)
46
Digoxin affects
cardiac contractility
47
when should we hold DIG
if apical is less than 60
48
signs of dig toxicity
``` NV anorexia vision changes Ha confusion sagging ST brady or tachy ```
49
Antidote for Dig is
digibind
50
Dobutamine will affect contractility withoutincreasing heart rate
know
51
Regitine
to treat extravision