100% CORRECT | AGRADE
a) Produces persistent ST-segmental changes and T-wave abnormalities
What ECG changes can reduce the specificity of the ETT?
Question 22 options:
b) Exercise induced bundle branch blocks
c) Paced rhythm and exercise induced bundle branch blocks
d) Low voltage up sloping of the ST-segment
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Question 23 (2.75 points)
Why would inability to exercise reduce the specificity of the routine ETT?
Question 23 options:
b) Produces QRS changes that cannot be interpreted
c) Causes ST-segment changes and P-wave abnormalities
d) Will not produce any changes in ECG
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,Question 24 (2.75 points)
The sensitivity of a routine ETT is effort dependent. What physiological changes occur during effort in the routine
ETT?
Question 24 options:
a) Decrease in coronary blood flow
b) Decreased heart rate and increased systolic blood pressure
c) Rapid heart rates and coronary artery narrowing
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Question 25 (2.75 points)
Specifically, when is an ETT considered to be negative?
Question 25 options:
b) Patient exercises until tired without evidence of induced ischemia
c) Patient has ST-segmental changes with down sloping of greater than 1 mm at 50% of age-predicted maximu
heart rate
d) Increased coronary flow and increased systolic blood pressure
d) Patient exercises to 20% maximum age-predicted heart rate without induced ischemia
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Question 26 (2.75 points)
,Your mentor says that you should be prepared to know how to determine the maximum heart rate for your
patient during the ETT. How is the age-predicted maximum heart rate during an ETT determined?
Question 26 options:
a) Patient exercises to 85% of age predicted maximum heart rate without evidence of induced ischemia
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Question 27 (2.75 points)
Your patient has a maximum age-predicted heart rate of 180. During the exercise, he reaches a heart
rate of 140 and then states he can no longer exercise. You see no evidence of ischemia on the ECG. This
would be diagnostic for what condition?
Question 27 options:
a) Diagnostic for impending Myocardial Infarction
b) Predictive of no CAD
a) 120-age
b) 220-age
c) 65+age
d) 220+age
c) Diagnostic of laziness
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Question 28 (2.75 points)
, Your patient has a maximum age-predicted heart rate of 180. During the exercise he reaches a heart rate
of 140 and then states he can no longer exercise. You see evidence of ischemic changes on the ECG. This
would be predictive of what condition?
Question 28 options:
b) Low risk of CAD
d) Has no diagnostic value to rule out CAD
c) Impending death
d) Stroke
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Question 29 (2.75 points)
a) Significant CAD
Ischemic changes on ECG during ETT is highly predictive of CAD. What is another important strong predictor
of CAD that you might see during an ETT?
Question 29 options:
b) Exercise-induced hypertension
c) Rapid heart rate
d) Slow heart rate
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Question 30 (2.75 points)