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Med Surg 2 > 33 MI > Flashcards

33 MI Flashcards

1
Q

MI

A

abrupt stoppage of blood

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2
Q

stemi

A

occlusive thrombi

  • results in ST elevation in ECG
  • EMERGENCY
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3
Q

to limit infarct size…

A

artery must be opened w/in 90 min

-PCI or thrombolytic

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4
Q

PCI + thombolytic time frame WITHIN PRESENTATION

A

cardiac catherization aka PCI- 90 min

thrombolytics- 30 min

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5
Q

classic pain

A
  • heavy pressure, tight, burning, constricted, crushing
  • substernal or epigastric
  • -may radiate to neck, lower jaw, arms, back
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6
Q

atypical pain

A
  • discomfort
  • weak
  • nausea
  • indigestion
  • SOB
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7
Q

diabetic or elderly atypical manifestations

A

diabetic: silen/asymptomatic
elderly: change in mental status, pulmo edema, sob

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8
Q

SNS stimulation

A
  • during initial phase of MI
  • ischemic hrt cells release catecholamine (epineph, norepineph)
  • incr HR, BP, vasoconstriction, diaphoresis
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9
Q

bp + hr are high initiall but drop bc

A

dect CO

-if severe, may result in decr renal perfusion + UO

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10
Q

fever/incr in temp is due to…

A

systemic inflammatory response to death of myocardial cells

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11
Q

HEART FAILURE

A

complication that occurs when pumping action is reduced

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12
Q

biomarkers will be __ in NSTEMI but __ in UA

A

high in NSTEMI

normal in UA

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13
Q

serum levels of troponin (onset, peak, end)

A

O: 4-6 hr
P: 10-24 hr
E: 10-14 days

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14
Q

serum levels of CK (onset, peak, end)

A

O: 6 hr
P: 18hr
E: 24-36 hr

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15
Q

2 steps should be completed before thrombolytic therapy

A

1 draw blood to obtain baseline lab values

2 start 2-3 lines for IV therapy

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16
Q

thrombolytic therapy is given via…

A

bolus over 30-90min

17
Q

when reperfusion occurs…

A
  • ST returns to baseline
  • resolution of pain
  • early/rapid rise of serum biomarkers w/in 3 hrs of therapy
18
Q

thrombolytic therapy is given along w ____ to prevent

A

heparin to prevent reocclusion

19
Q

signs of major bleeding

A
  • drop in BP
  • incr HR
  • change inmental status
  • blood in urine or stool
20
Q

Ca channel blockers are used when

A

b blocker are not tolerated

21
Q

morphine

A
  • drug of choice for chest pain that is not relieved w NTG

- reduce anxiety + fear

22
Q

b blockers

A

decr myocardial o2 demand by reducing HR, BP, + contractility

23
Q

ACE inhibitors should be started withing ___ + continued ____

A
  • 24 hrs if BP is stable

- indefinitely if pt w HF or an EF of less than 40%

Med Surg 2 (13 decks)

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