A patient with heart failure is being monitored with a pulmonary artery catheter to assess cardiac output and its components. What pattern of results would indicate a need for immediate intervention?
A) Heart rate, preload, contractility, and afterload are balanced and cardiac output is normal.
B) Heart rate is rapid, preload is reduced, contractility and afterload are normal, and cardiac output is reduced.
C) Heart rate is rapid, preload is high, contractility is high, afterload is low, and cardiac output is normal.
D) Heart rate is low, preload is high, contractility is high, afterload is low, and cardiac output is normal.
B
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