What is the optimal increase in resting heart rate with low dose isoproterenol infusion for tilt-induced vasovagal response?
D000328:Adult; D000368:Aged; D005260:Female; D006339:Heart Rate / Q000187:drug effects* / Q000502:physiology*; D006801:Humans; D007262:Infusions, Intravenous; D007545:Isoproterenol / Q000008:administration & dosage* / Q000009:adverse effects; D008297:Male; D008875:Middle Aged; D012146:Rest / Q000502:physiology*; D012680:Sensitivity and Specificity; D016683:Supine Position / Q000502:physiology; D019462:Syncope, Vasovagal / Q000503:physiopathology; D018667:Tilt-Table Test; D013997:Time Factors
D007545:Isoproterenol