- PowerScore Staff
- Posts: 8917
- Joined: Feb 02, 2011
- Sat Jul 01, 2017 1:26 pm
#36775
Complete Question Explanation
Must Be True. The correct answer choice is (E)
In this stimulus, the cardiologist makes several observations about whether bypass surgery is always the
best remedy for coronary artery disease:
that coronary bypass surgery is riskier than all other therapies.
Answer choice (B): We cannot infer from the use of “commonly” that there has been any increase in
frequency over time, especially since the stimulus does not concern different time periods. Furthermore,
it is wrong to infer that bypass surgery is “needless,” just because alternative (or even superior) remedies
exist.
Answer choice (C): The cardiologist says that bypass surgery is especially debatable when only one
vessel is involved, which does not necessarily mean that such surgery is desirable when more than one
vessel is involved.
Answer choice (D): While bypass surgery is especially debatable for single-vessel disease, the
cardiologist does not say that it especially expensive.
Answer choice (E): This is the correct answer choice. The stimulus states that bypass surgery is
commonly performed when other equally effective, less risky remedies are available.
Must Be True. The correct answer choice is (E)
In this stimulus, the cardiologist makes several observations about whether bypass surgery is always the
best remedy for coronary artery disease:
- 1. Coronary bypass surgery is commonly performed when certain less expensive and less risky
procedures would be as effective.
2. Bypass surgery is especially debatable for single-vessel disease.
that coronary bypass surgery is riskier than all other therapies.
Answer choice (B): We cannot infer from the use of “commonly” that there has been any increase in
frequency over time, especially since the stimulus does not concern different time periods. Furthermore,
it is wrong to infer that bypass surgery is “needless,” just because alternative (or even superior) remedies
exist.
Answer choice (C): The cardiologist says that bypass surgery is especially debatable when only one
vessel is involved, which does not necessarily mean that such surgery is desirable when more than one
vessel is involved.
Answer choice (D): While bypass surgery is especially debatable for single-vessel disease, the
cardiologist does not say that it especially expensive.
Answer choice (E): This is the correct answer choice. The stimulus states that bypass surgery is
commonly performed when other equally effective, less risky remedies are available.