Fluke Biomedical Cufflink - Manual (Page 139)

Appendices
Non-Invasive Blood Pressure (NIBP) Monitoring Tutorial
A
A-3
Oscillometric Response
(Press u re P u lses)
A u sc u ltatory Response
(Korotkoff So u nds)
C u ff Press u re
MAP
MAP
Distole
Distole
Systole
Systole
Time
Time
Time
fcv006.eps
Figure A-1. Auscultatory vs. Oscillometric Techniques
Also in Figure A-1, the oscillometric pulse amplitudes are depicted as constantly
changing. There is no point where the pulses abruptly change in amplitude, but there is a
point where the pulse amplitude reaches a peak. It is generally agreed that the cuff
pressure at peak pulse amplitude is the MAP, a value not easily identified using the
auscultatory method.