ACS,SCD Flashcards
a) Asymptomatic?
b) Stable Angina?
a) happens progressively
people don’t notice the plaque buildup
don’t realize until the damage is done
b) During activity
Emotional stress
(inc O2 demand)
Pain stops w/ rest
a) Ischemia?
b) Infarct?
a) 1 minute of blockage-
muscles ability decreased to contract
Reversible
b) 20-40 minutes of blockage
Irreversible Damage
Too acidic
a) Subendocardial?
b) Transmural?
a) partial thickness of inner part of the
myocardium
NSTEMI
Some damage but still some functioning
muscle tissue
b) entire thickness of myocardium
STEMI
Loss of all function – no contractility
a) NSTEMI?
b) STEMI?
a) block in a minor artery or a partial obstruction in a major artery
b) ruptured plaque blocks a major artery completely
Normal sinus rhythm (NSR)?
the rhythm that originates from the sinus node and describes the characteristic rhythm of the healthy human heart.
TIMI (thrombolysis in MI) risk score
Scores:
a) low risk
b) Intermediate risk
c) high risk
Tells you the risk of MIs
a) 0-2
b) 3-4
c) 5-7
Factors
a) age?
b) at least three risk factors for
c) Presence of what segment?
d) At least how many times prior angina episode?
e) Use of what med in prior 7 days?
a) ≥65 years
b) HTN
DM
Dyslipidemia(imbalance of lipids)
Smoking
Positive family history of early MI
c) ST segment deviation
d) At least two anginal episodes in prior 24 hours
e) aspirin
Possible ECG changes
a) Ischemia?
b) Cell injury?
c) Cell death?
a) ST depression & T wave inversion
b) ST elevation
c) Abnormal Q wave
Unstable angina
NSTEMI
a) S/S?
b) Type of blockage?
c) Duration?
d) ECG changes?
f) Biomarkers
(Troponin)
a) Pain occurs w/ rest
inc in intensity/occurrence/duration
b) Ischemia (O2 supply is just reduced)
c) > 20 min
d) Transitory ST depression(unstable)
Persistent ST depression(NSTEMI)
T wave inversion
Wide QRS complex
f) Unstable Normal/not tissue death
NSTEMI Elavated/tissue death
Nursing Management
Prior to all procedures?
Chest pain
12-lead ECG( identify NSTEMI or STEMI?)
When the pt has chest pain=ECG!!
IV access(make sure to patancy,flush)
Manegement
UA/NSTEMI
a) Goals?
b) Management
a) Prevent ischemia/infarction/death
Modify disease process (long term)
b) Rest & nitrates(no exercise or eat)
oxygen < 90%
Morphine(chest pain)
B-blocker(less work load)
Anti-platelet/anticoagulants
DX LABS
UA/NSTEMI
we want baseline labs and then will draw every 6-8 hrs to check values
Troponin I & T
released with cell death,higher the number, worse
CK-MB (cardiac specific)
CBC
Serum electrolytes (abnormal potassium levels can further annoy the heart)
BUN, Creatinine (because of contrast dye that is given in cath lab)
DX
UA/NSTEMI
Procedure
Treadmil/bike
Echocardiogram
Cardiac catheterization
Post-catheterization
a) Nursing care
b) Complications
a) Bed rest(2-6hr)
HOB <30(pressure=bleeding)
Immobilize etremity(can cause clots break)
Monitor for bleeding
Montior for reaction to dye
Encourage fluid intake
b) Bleeding
Obstracted blood flow to extremity (sing of clot)