GE DASH 3000 V5 Quick Reference Manual page 96

Problem:
Why is the monitor displaying a only MAP
measurement?
Answer:
Oscillometric measurement is based on the fact that a
maximum cuff oscillation occurs at MAP. This means
that the signal should be the strongest and easiest to
measure at MAP. The DINAMAP algorithm is designed
to display only a MAP reading if the systolic blood
pressure (SBP) or diastolic blood pressure (DBP) values
are in question.
There are a couple of conditions which cause the values
to be in question:
If the measured oscillations in the cuff are very small
and the algorithm has a difficult time matching
oscillations at the individual pressure steps due to
noise.
If the calculated values for the systolic and diastolic
are determined to be too close to the MAP value.
The BP questions the accuracy of the values and displays
only the MAP as a safety mechanism. This MAP reading
is accurate and appropriate for clinical use.
TROUBLESHOOTING and
FREQUENTLY ASKED QUESTIONS
NBP
Intervention:
Check for proper cuff size and placement.
Minimize patient movement during measurement.
Blood pressure cuff should have bladder width that
is 40% of the arm circumference at the greatest
diameter of the arm with a bladder length of 80% of
arm circumference at its greatest point.
Wrap cuff snugly around arm or limb (tight enough
to allow one finger to be slipped snugly under the
wrapped cuff).
Check for residual air left in the cuff from a previous
measurement.
In low blood flow states, consider auscultation with
a manual cuff to verify reading.
TAB
TRIM
COVER &
NON-TAB
TRIM
COVER &
NON-TAB
TRIM
TAB
TRIM