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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).