Valsalva Maneuvers

《英文msh詞典》Valsalva Maneuvers
[入口詞] Valsalva Maneuvers
[主題詞] Valsalva Maneuver
[英文釋義] Forced expiratory effort against a closed GLOTTIS. It is used to study cardiovascular effects of increased peripheral VENOUS PRESSURE and decreased cardiac filling and output.