An underwriter's guide to cardiac diagnostic testing Flashcards
What are the three factors to be evaluated by testing?
- Ejection Fraction - how well the heart is functioning
- How much the heart is damaged
- Risk of sudden death
How do you determine which test to us?
- accuracy of the test
- cost of the procedure
- risks to the patient
What is a sensitive test?
Will give positive result of condition early on.
What is a specific test?
Only positive for one disease/condition.
What are blood test we can use for cardiac diagnostic?
Lipids
NT-proBNP
Troponins
CPK
AST
LDH
Which CPK is found mostly in the heart?
CPK-MB/CPK-2
Which changes in an EKG are worriesome for someone with known cardiovascular risk?
ST-Segment or T wave
EKG abnormalities are categorized into which five areas?
- heart rate
- heart rhythm
- axis or position of the heart
- cardiac hypertrophy
- myocardial infarction and/or ischemia
What are the echocardiogram report?
- Results of the M-mode exam
- 2-D study
- Doppler flow
When do you usually use a TEE?
Specialized evaluation of congenital cardiac abnormalities or when result of thoracic echocardiogram is suboptimal.
TEE are better for which impairments?
- atrial or ventricular septal defect
- complex valvular heart disease and endocarditis
- atrial enlargement with suspected atrial blood clots
- intracardiac tumours
What are the common criteria to stop a stress test?
- maximum possible performance
- emergence of sign and symptoms
- achievement of predetermined end point
In a stress test, an underwriter should consider?
- type of exercise protocol use
- stage and time exercise were concluded
- max heart and BP rate
- reason of termination
- maximal ST-segment depression and slope of ST-segment depression
- workload measurement
- length of time ST changes persist into recovery phase
- presence of arrhythmias
What are the common abnormal response on a stress test?
- reduced exercise capacity
- changes in BP
- changes in HR
- unusual symptoms
What ST-segment changes are likely related to CAD?
- ST-segment depression at peak exercise is greater than 1-1.5mm
- ST-segment change occurs early in the test
- ST-segment change occurs in multiple rather than in single EKG leads
- ST-depression persists longer than one minute into the recovery phase of the test.
What are the five classification ventricular wall motion analyzed in echocardiographic stress testing?
- normal.
- Hyperkinetic
- hypokinetic
- akinetic
- dyskinésic
Hypokinesis suggests what?
Ischemia
Akinesis or dysknesis implies?
Permanent myocardial damage
What does PET very accurate for?
Identifying how much the heart has been damaged by infarction and how much is viable.
What is the gold standard of cardiac testing?
Cardiac Catheterization
What three parts cosists of cardiac catheterization?
- Coronary arteriography
- Intracardiac pressure measurements
- Left ventriculogram
Extent of CAD will be reported based on what in a cardiac catheterization?
- number of coronary vessels involved
- location of blockage
- extent of obstruction