DOING MULTIPLE TESTS ON A PATIENT
ASSESSING ACCEPTABILITY:
According to the American Thoracic Society recommendations for
testing,,, the patient should perform at least three acceptable FVC
maneuvers, the best two of which must match one another within
5%. The best effort is then used to assess patient status.
No more than eight maneuvers should be obtained to avoid fatiguing
the patient.
This is easily accomplished with your Welch Allyn PneumoCheck as
it will automatically:
1. Assess acceptability.
2. Save the best test.
3. Determine repeatability (“matching”).
Following is a description of the specifics:
When power is first turned on, the instrument’s memory is empty as
indicated by the CLEAR message.
The PneumoCheck automatically stores all test data for the best
FVC and the best MVV as well as the most recent FVC and MVV
maneuvers. To review BEST or LAST test:
Press TEST button to access SELECT.
Press DATA button once and release to access BEST FVC.
Press DATA button again and release to access LAST FVC.
Press DATA button and release a third time to return to
SELECT.
After accessing BEST or LAST memory, wait three seconds for the
quality control message. Then, push and release DATA to see
calculated values for that test.
14
The PneumoCheck will determine
performed should replace the
as BEST test. In making this determir
looks at the quality control messages
“good” maneuver is one that has no
cough in the middle of the maneuver
SELECTING BEST TEST:
One Acceptable, One Not
If the new maneuver is acceptable an
maneuver was not, then the previous1
discarded and the new maneuver is
Likewise, if the new maneuver is not
stored BEST maneuver was
BEST maneuver is retained.
Both Acceptable, Both Unacceptab
If the stored BEST maneuver and the
acceptable or both unacceptable, the
mines which is BEST based on the fo
Criterion For Best FVC Maneuver:
The larger sum of the FVC and
Criterion For Best MVV Maneuver:
The higher value as expressed in liter
DETERMINING REPEATABILITY:
In addition to selection of the best tes
the tests were reproducible, that is, tc
do this the currently stored best test
test and a message appears after the
