In the Bronchochallenge protocol, e

In the Bronchochallenge protocol, each step corresponds to one test in the same visit card. In each step different trials
are stored. For example there can be a Bronchochallenge test (the 1st step) with three trials performed with the diluent,
then another test (the 2nd step) with one trial performed with 30 mcg of metacholine, another one (the 3rd step) with two
trials performed with 60 mcg of metacholine, etc.
This means that all the Bronchochallenge trials performed with a defined quantity of drug during a visit (i.e. in the same
day) are stored under the same test. Other trials performed with different quantities of drug are stored under other tests.
The flow chart at page 160 shows the bronchochallenge test protocol.