Cardiovascular and respiratory effects of subarachnoid block in the presence of acute blood loss.
D000328:Adult; D000775:Anesthesia, Spinal; D001158:Arteries; D001784:Blood Gas Analysis; D001794:Blood Pressure; D001810:Blood Volume; D001815:Bloodletting; D001835:Body Weight; D002302:Cardiac Output; D006339:Heart Rate; D006801:Humans; D008297:Male; D014655:Vascular Resistance; D014680:Veins