Maneuvers,Valsalva
《英文msh詞典》Maneuvers,Valsalva
[入口詞] Maneuvers,Valsalva
[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.