射血分數（英語：ejection fraction，縮寫EF）是一個心臟生理學術語，指每博輸出量占心室舒張末期容積的百分比，可分為左心室射血分數（left ventricular ejection fraction，LVEF）和右心室射血分數（right ventricular ejection fraction，RVEF）[1]。
正常值
| 心室容積 | ||
|---|---|---|
| 右心室 | 左心室 | |
| 舒張末期容積 | 144 mL (± 23 mL)[2] | 142 mL (± 21 mL)[3] |
| 舒張末期容積 / 體表面積 (mL/m2) | 78 mL/m2 (± 11 mL/m2)[2] | 78 mL/m2 (± 8.8 mL/m2)[3] |
| 收縮末期容積 | 50 mL (± 14 mL)[2] | 47 mL (± 10 mL)[3] |
| 收縮末期容積 / 體表面積 (mL/m2) | 27 mL/m2 (± 7 mL/m2)[2] | 26 mL/m2 (± 5.1 mL/m2)[3] |
| 每搏輸出量 | 94 mL (± 15 mL)[2] | 95 mL (± 14 mL)[3] |
| 每搏輸出量 / 體表面積 (mL/m2) | 51 mL/m2 (± 7 mL/m2)[2] | 52 mL/m2 (± 6.2 mL/m2)[3] |
| 射血分數 | 66% (± 6%)[2] | 67% (± 4.6%)[3] |
| 心率 | 60–100 bpm[4] | 60–100 bmp[4] |
| 心輸出量 | 4.0–8.0 公升[5] | 4.0–8.0 公升[5] |
參考文獻
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