Nlhep Quality Checks - CareFusion Micro I Mode D'emploi

NLHEP Quality Checks

In order for the interpretation to be displayed a manoeuvre must
pass a set of enhanced quality checks.
performed a poor quality manoeuvre, one of the three following
messages will appear:
Message
Don't Back-extrapolated volume
hesitate (BEV) greater than 150 ml
Blast out Time until peak flow (PEFT)
faster greater than 120 msec
Blow out Expiration time less than 6
longer seconds or volume
accumulation has not
dropped below 100 ml per
0.5 seconds
Once an acceptable manoeuvre has been performed, the following
consistency checks will also be applied to subsequent manoeuvres
Blast out Peak flow not reproducible.
harder The best previous
manoeuvres do not match
within 1.0 L/sec indicating
that the patient is giving
an inconsistent effort.
Deeper FEV1 or FEV6 not
breath reproducible. Difference
with respect to best test
greater than 150 ml
Criteria
25
After the patient has
Recommended action
The patient should blast
out the air more quickly
and evenly and without
hesitation at the beginning
of the manoeuvre
The patient must exhale
more explosively at the
beginning of the
manoeuvre
The patient stopped
exhaling too early. The
patient must exhale until
their lungs are completely
empty.
The patient must give
their maximum effort for
each manoeuvre
The patient must inhale
until their lungs
completely full
each manoeuvre
are
before