EasyOne Pro™ / EasyOne Pro™ LAB 67
Performing a Test
3.8 CO Diffusing Capacity (DLCO)
Note
Before conducting the DLCO test, the valve unit must be
attached to the sensor (see Fig. 2-7). Furthermore, a new
barriette™ and, in case of a new patient, a new spirette™
must be inserted (see "Inserting the One-Way Valve, DLCO
barriette™/FRC barriette™ and spirette™" on page 35).
Before performing the first DLCO test, check that the valve
unit is properly attached and that the metal coupling ring of
the motor is tight.
Before performing a DLCO test, you should measure the vital
capacity.
It is recommended to perform two DLCO tests. The pause
between the two tests must be at least 4 minutes. However,
do not perform more than five consecutive DLCO tests on
one patient (ATS/ERS Taskforce recommendations, literature
[11] ("Literature" on page 182).
Select the patient (see "Selecting/Adding a Patient" on page 41).
Attach the nose clip to the patient and explain the test maneuvers to him
or her:
Select DLCO.
In the BTPS window, confirm the values for relative humidity,
temperature and atmospheric pressure with Confirm.
Check that the patient sits fully upright and wears the nose clip.
Instruct the patient to hold the sensor straight (not at an angle) in front of
his or her mouth without taking the spirette™ into the mouth yet.
Fig. 3-31 shows the patient during a test, using the sensor stand (optional
accessory).
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