Orthostatic tachycardia and ectopic pregnancy: normal pulse rate in the presence of massive hemorrhage.
D000328:Adult; D005260:Female; D006470:Hemorrhage / Q000209:etiology*; D006801:Humans; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000503:physiopathology*; D011674:Pulse; D013610:Tachycardia / Q000209:etiology*