I believe I do have a timeline of events that you might find enlightening.
Vanessa undergoes a medical examination to evaluate her fitness to serve the Ministry of Transport during the war.
While the doctor is checking her for fluid on the lungs, Vanessa advises him on improvements to his diagnostic technique.
The doctor refuses to give Vanessa the results of the examination, since they must come from the Ministry. To bypass this, Vanessa immediately requests a second examination as a private patient.