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Auscultatory Reference vs. Arterial
  Systolic Mean Diastolic
Auscultatory

(NOTE: DINAMAP does NOT
use a microphone …
auscultatory is reference only)


Appearance
of
Sounds 		 

Not
Available

Disappearance
(phase V)
 or Muffling
(phase IV)
of Sounds
 

Oscillometric
(Classic, ASAP)

Ratio of pulse
amplitude to
maximum
amplitude, or
rapid increase
in amplitude of
pulses in cuff 		Maximum
amplitude
pulses at
lowest cuff
pressure 		Ratio of pulse
amplitude to
maximum
amplitude, or
rapid decrease
in amplitude of
pulses in cuff

The auscultatory technique is the reference standard in some markets …

OR/Critical Care

Med-Surg

Home Care

Oscillometric

Auscultatory