diagnosis of CVD Flashcards
What is the best marker for MI?
Troponin
What is the best marker for heart failure?
BNP
What causes BNP release?
Released by the ventricles upon ventricular stretching and wall stress
What conditions can elevate BNP?
Pulmonary disease/right heart stress
What enzymes serve as serum cardiac markers?
Total creatine kinase and creatine kinase from heart
What proteins serve as serum cardiac markers?
Troponin and myoglobin
Describe total CK as a cardiac marker.
CK-MB should be mostly contained in the myocardium, with only up to 5% contributing to total CK. If this percentage is higher, it can indicate an MI.
In an acute MI, total CK rises within ___ and returns to normal by ___, while CK_MB returns to normal by ___
3-8 hours, 3-4 days, 2-3 days
How long does troponin stay in the serum?
1-2 weeks
What protein enters the blood most quickly following MI? When does it return to normal?
Myoglobin; 24 hours
In an acute MI, troponin rises within ___ and returns to normal by ___
3-8 hours, 5-10 days
What is the recommended time to obtain treatment for MI?
Within 90 minutes
