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ECG Stress Test Quiz
Question | Answer |
---|---|
Thallium is considered a what? | Isotope |
What is the # 1 reason for doing a EKG / ECG? | To look for evidence of coronary artery disease (To see if you have blockages in your coronary arteries.) |
What are the three I's of myocardial infarction? | Ischemia - Injury - Infarction |
What does ischemia mean? | Reduced blood supply |
How accurate is a stress test with nuclear imaging and without? | With 95%; Without 80-85% |
What are the major coronary risk factors a person not change? | Family History - Diabetes Mellitus (Type I) - Gender |
What raises your family history risk factors? | MI or sudden death of male family before 55 or age 65 for women |
What concerning diabetes mellitus raises your risk factor? | DM increases risk of artery damage |
What are the risk factors related to gender? | Men > 45 years old; Women 55 years of premature menopause without estrogen replacement therpy |
Classic EKG finding for a person with ischemia is what? | ST depression |
Classic EKG finding for a person with injury is what? | ST elevation |
If you see ST elevation of an EKG during a stress test, what would you do and why? | Stop the test; You are past ischemia and in the zone of injury and that is the intital stages of someone having a heart attack |
Normal 'J' point deviation is what? | 1 box (1mm) above the base line or 1/2 (.5mm) below the base line |
If the 'J' point is 1 box or more below the base line, what is it a sign of? | Ischemia |
What are the three kinds of angina? | Stable; - Unstable - Variant |
Define stable angina - | 'Predictable' chest pain; (Present at determined workloads) |
Define unstable angina - | 'Unpredictable' chest pain; (Present at rest) |
Define variant angina - | Caused by coronary artery spasm (Also known as Prinzmetal's angina) |
What does exercise stress tests evaluate? | the hearts response during physical exertion to increased oxygen demand |
What is the value of one met? | 5 mL of oxygen per kg |
Indication - Evaluation of symptoms - | Is chest pain of cardiac origin? Other symptoms include syncope, dyspnea & palpitations |
Indication - Detection of ischemia - | ID of low, intermediate or high risk patients; Evaluation of severity of CAD; Evaluation after MI, PTCA or CABG |
Indication - Evaluation of dysrhythmia - | Evaluate arrhythmia; Induce arrhythmia |
Indication - Efficacy of pharmacological therapy - | Determine which medications to use (anti-anginal, anti-hypertensive, anti-arrhythmic); Assess effects of therapy |
Indication - Evaluation of cardiovascular functional capacity - | Measurement of maximal O2 uptake; Classification of physical fitness; Assessment for exercise training |
What are the risks associated with exercise testing? | Risk of death during or right after an exercise test is < 0.01%; - Risk of MI during or immediately after an exercise test is < 0.04%; - The risk of a complication requiring hospitalzation (Including MIs) is approximately 0.1% |
Define sensitivity - | Ability of a test to detect abnormality. |
Define specificity - | Ability of a test to detect normals |
What are the chances of a patient having an adverse effect from stress test? | 1 in 1000 (This includes anything from hypertension to a heart attack) |
What are the chances of a patient dying from a stress test? | 1 in 10,000 |
What are the essential components of all emergency medical plans? | All personnel should be trained in basic CPR & ACLS (Advanced Cardiac Life Support) - 2 Emergency numbers should be clearly posted; - 3 Emergency plans should be established & posted; - 4 Regular drills should be conducted quarterly for all personnel |
What do you do for pre-test? | 1 - 12-lead EKG while pt is supine (Make sure limb leads are on bone in truck area) 2 - Have pt hyperventilate |
What are the Bruce treadmill graded exercise test protocols? | 3 min stages (Every 3 mins both elevation & speed increase) |
What are the Balke treadmill graded exercise test protocols? | 1 min stages |
How do you figure maximum heart rate? | Subtract the patients age from 220 (Ex: 50 year old pt would be 170; 220 - 50 = 170) |
How do figure target heart rate? | Mulyply % set by doctor by maximum heart rate. (ex: 90% of 170 = 170 x .9) |
Define sub maximal - | Anything below 80% of maximum heart rate |