Cardiology 2 Flashcards

1
Q

how do you calculate cardiac output

A

CO=stroke volume X heart rate

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2
Q

symptoms of poor cardiac output

A

Decreased LOC
chest pain, weak peripheral pulses
SOB, crackles, rales
cool, clammy mottled extremities
decreased UOP

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3
Q

What is the frank starling law

A

the more blood on the right side of the….

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4
Q

causes of decreased cardiac output

A

bradycardia
arrhythmias
pulseless vtach
vfib
asystole
svt
hypotension
MI
cardiac disease muscle

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5
Q

Causes of increased CO

A

increased blood volume sometimes
tachycardia sometimes
medications
inotropes

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6
Q

what medication decrease heart rate

A

ace inhibitors
ARBS
nitrates

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7
Q

What are the types of coronary artery disease

A

acute stable angina
acute coronary syndrome (MI)

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8
Q

What is chronic stable angina

A

narrowing of coronary arteries and plaque build up
periods of ischemia causing chest pain
periods of decreased blood flow

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9
Q

treatment of chronic stable angina

A

Nitro

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10
Q

how do you give nitro

A

sublingualy
1 pill every 5 min for 3 doses
store in dark container
do not swallow
call Ems if not relieved after first pill
may experience headache

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11
Q

what does nitro do

A

venous arterial dilation>decreases afterload>increased cardiac output

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12
Q

how do patients decrease workload of the heart

A

rest
do not overeat
no caffeine
avoid temperature extremes
no smoking
promote weight loss
reduce stress

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13
Q

What is an mi

A

decreased blood flow to the heart leading to decreased oxygen causing ischemia and necrosis
act quickly to limit damage (heart muscle is dying)

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14
Q

MI assessment

A

chest pain
radiating to left arm or jaw between shoulder blade
epigastric discomfort
SOB
fatigue
vomiting

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15
Q

What is CPK-BMP

A

cardiac specific isoenxyme
increases wit damage to cardiac cells

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16
Q

what is troponin

A

cardiac biomarker
increases with MI

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17
Q

what is myoglobin

A

protein in muscle cells
increases with damage to any muscle
negative results can help rule out an MI but positive results are not specific

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18
Q

Treatment of MI

A

Cath lab within 90 minutes for PCI especially if a semi
oxygen
aspirin
nitro
morphine

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19
Q

education for MI

A

quit smoking
increase activity
heart healthy diet
avoid isometric exercises
walking is a good choice

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20
Q

What is included in a heart healthy diet

A

low salt
low fat
low cholesterol

21
Q

What is heart failure

A

inability to pump enough blood to meet the body need for blood and oxygen

22
Q

causes of heart failure

A

hypertension
cardiomyopathy
endocarditis
mi

23
Q

what happens in left heart failure

A

blood cannot move forward so backs into lungs

24
Q

assessment of left heart failure

A

pulmonary congestion
wet lung soiunds
dyspnea
cough
blood tinged sputum
s3 heart sound
orthopnea

25
What happens in right sided heart failure
blood is backing into body and not going out to lungs
26
assessment of right sided heart failure
jugular venous distention dependent edema hepatomegaly splenomegaly ascites weight gain fatigue anorexia
27
cause of right hear failure
left sided heart failure
28
treatment of heart failure
decrease workload of heart ace inhibitors ARBS digoxin diuresis
29
Education for diuretics
take in the AM monitor electrolyte levels low sodium diet elevate HOB daily weight report any increase of 2-3 pounds in one day
30
What is a hypertensive crisis
180/120
31
causes and risk factors of hypertension
family history African american increased age obesity HDL CAD stress smoking high salt intake caffeine
32
Assessment of hypertension crisis
vision changes headaches dizziness nosebleeds SOB angina
33
hypertension complications
stroke mi renal failure heart failure vision loss
34
What is shock
when vitals organs are not receiving adequate oxygenation causing organ damage
35
Types of shock
hypovolemic cariogenic distributive
36
What is hypovolemic shock
loss of blood flow not enough blood entering heart body vasoconstricts
37
Causes of hypovolemic shock
hemorrhage traumatic injury dehydration burns
38
signs of hypovolemic shock, compensating
weak pale anxious tachycardic
39
signs of failing hypotension
weak pulses hypotension decreased loc pale cool clammy decreased uop
40
Treatment of hypovolemic shock
fix the cause replace vomue support perfusion-vasopressors
41
What Is cariogenic shock
heart can't pump blood sufficiently
42
Causes of cariogenic shock
MI cardiac tamponade-obstructive shock pulmonary embolism
43
assessment of cardiogenic shock
decreased profusion volume overload
44
signs of volume overload
jvd crackles sob muffled heart sounds s3 soudn
45
Treatment of cariogenic shock
treat the cause improve contractility-dopamine, dobutamine decrease afterload, diuretics, dobutamine IABP LVAD transplant
46
treatment for cardiac tamponade
pericardiocentesis
47
What is distributive shock
something causes an immune or autonomic response alters vascular tone peripheral vasodilation blood pressure cant provide blood to vital organs
48
Causes of distributive shock
anaphylactic neurogenic- SCI septic