Step Up Cardrio Flashcards
(31 cards)
ECG finding of Anterior Infarct
ST elevation V1-V4
Q waves V1-V4
ECG findings in Posterior Infarct
ST depression V1 and V2
Upright and big T waves in V1 and V2
ECG findings in Lateral infarct
Q waves in I and aVL
ECG findings in Inferior infarct
qQ waves in II, III and aVF
ST depression indicates what?
subendocardial injury
ST elevation indicates what?
transmural injury
When is troponin I falsely elevated?
Renal failure patients
How soon after MI do troponins increase?
3-5 hours
When do troponins peak after MI
24-48 hours
What is the most common cause of death in first days after MI?
VT arrythmia of Vfib
How can you detect a recurrent heart infarction?
CK-MB re-elevation after 36-48 hours or repeat ST elevation within 24 hours
What is Dressler’s Syndrome
Acute pericarditis, fever, malaise, luekocytoss and pleuritis weeks to months after MI
What is treatment of Dressler’s Syndrome
Aspirin first line. NSAIDs second line.
What does echo show in diastolic dysfunction?
impaired LV relaxation
Where is S3 heard best
apex
Where is S4 heard best
left sternal border
When is BNP released from ventricles?
In response to ventricular volume expansion and pressure overload
What drugs lower mortality in CHF?
ACE inhibitors
B-blockers (carvedilol and metorprolol)
Spironolactone (aldosterone inhib)
Hydarlazine + nitrate
What are signs of Digitalis toxicity?
Afib, AV block, N/V, anorexia, visual changes, disorientation
What drugs lower mortality after acute MI?
Aspirin
B-blockers
ACE inhbitors
What is the significance of Premature atrial complexes?
Can be precursor of ischemia in a diseased heart, otherwise found in 50% of normal hearts and of no significance
What is seen on EKG in premature atrial complexes?
P-wave weirdness because originate in atria and not in sinus node
What is seen on EKG in premature ventricular complexes?
Wide bizarre QRS due to slow conduction through ventricle. Missing P waves because they are buried in widened QRS
What is treatment of hemodynamically unstable Afib?
Electrical cardioversion to sinus rhythm immediately