Answer:
C. Stop the test immediately and possibly refer the client to her primary healthcare provider
Step-by-step explanation:
As the treadmill test is the test of cardiac stress, the professional must ensure that the client is well and not in danger.
If any paint occurs during the test, it can be a sign of the overload of the body and some kind of pathology.
To make sure the person is well and not in danger, the test should be terminated immediately, and if the professional decides the symptoms might be a sign for something bigger and more serious, they should refer the client to the healthcare professional that can provide help.