stable angina and diagnostics Flashcards
What is ischemia
Imbalance between oxygen supply and demand
What is the most common cause of atherosclerotic disease of coronary arteries
Ischemic heart disease
What is stable angina
Episodic clinical syndrome due to transient myocardial ischemia
How is CK beneficial when working up an MI
Quantifies the timing and degree
Rises 4-6 hours post MI
Baseline in 36-48 hours
What lab is more sensitive and specific than CK in regards to MIs
Troponin
What can troponin levels help diagnose
ACS
Risk stratify unstable angina
Why are serial cardiac troponin labs taken post MI
To distinguish between acute / chronic injury and MI
How do you distinguish between myocardial injury and myocardial infarction
evidence of ischemia
When is LDH elevated
with lack of oxygen
Which type of patients is LDH used more commonly on
shock / critically ill patients
What does CRP help with
helps predict mortality
What is increased CRP associated with
Atherosclerosis
CV events
Recurrent CV events
Where in the heart is BNP released from
ventricles
What does BNP measure
LV stress
*good marker for HF
What is a good BNP negative predictive value in CHF
<100