Dx Tests Flashcards
Chest Xray: will reveal abnormalities of ____ fluid, overall cardiac _____ and _____, and aneurysm
Lung
Shape and size
Myocardial perfusion imaging:
Used to Dx and evaluate ______ heart disease, or ____
Ischemic
MI
Myocardial perfusion imaging:
What is injected into blood via IV?
Thallium 201
Myocardial perfusion imaging:
Radioisotopes concentrate in ______ tissue
NORMAL
They do not concentrate in ischemic or infarcted tissues (cold spots)
Myocardial perfusion imaging:
Used to ID myocardial _____ _____, areas of stress induced ischemia (____ ____), and ___ infarcts
Blood flow
Exercise test
Old
Myocardial perfusion imaging:
Thallium stress test: used with ____ or ____ ergometer
When is it injected?
TM or bike
At peak exercise
PET: uses radioactive marker ______________
18 F Fluorodeoxyglucose
Echocardiogram: noninvasive test that uses ________ to assess internal structures: size of chambers, wall _______, _____ ___, movement of valves, septum, and abn wall movement
US
Thickness
Ejection fraction
Cardiac cath: passage of a tiny tube from ______ or _____ artery through aorta into blood vessels with introduction of a _____ ______ into coronary artery and subsequent x-ray
Brachial or femoral
Contrast medium
Cardiac cath: allows determination of _____ ____
Ejection fraction
Central line (swan ganz): catheter inserted throughout vessels into ____ side of heart
What 3 things does it measure?
Right
Central venous pressure
Pulmonary artery pressure
Pulmonary capillary wedge pressure
LAB TESTS: rise and fall of cardiac ________ (I or T) >99th percentile is the primary measure of MI. It must accompany 5 things
Troponin
- Symptoms of ischemia
- New or presumed new ST changes on ECG
- Development of pathological Q waves on ECG
- New loss of viable myocardium and or new wall motion abnormality on imaging
- Evidence of CK or CPK with concomitant elevation of CK-MB can also be assessed, but peaks btw 12-24 hrs
