慢性心衰根据左室射血分数分为（）

A.射血分数降低的心衰(HFrEF，LVEF<40%)

B.射血分数保留的心衰(HFpEF，LVEF≥50%)

C.射血分数中间范围的心衰(HFmrEF，LVEF40%~49%)

D.射血分数升高的心衰(LVEF≥60%)

A.HFimpEF：射血分数改善的心力衰竭

B.HFrEF：射血分数降低的心力衰竭

C.HFpEF：射血分数保留的心力衰竭

D.HFmrEF：射血分数中间值的心力衰竭

A.40%

B.35%

C.55%

D.45%

A.35%

B.40%

C.45%

D.50%

慢性心力衰竭射血分数降低的心衰，LVEF为()

ALVEF<30%

B.LVEF≥50%

C.LVEF40%~49%

D.LVEF<40%

A.35%

B.40%

C.45%

D.50%

A.＜50%

B.＜40%

C.＜35%

D.≤40%

E.＜45%

A、心梗后右房射血分数降低

B、心梗后全房射血分数降低

C、心梗后左室射血分数降低

D、心梗后左房射血分数降低

E、心梗后右室射血分数降低

A.LVEF＞50%

B.LVEF＞40%

C.LVEF＞30%

D.LVEF＞55%

A.LVEF＜45%

B.LVEF＜40%

C.LVEF＜35%

D.LVEF＜30%