The target-object distance is the distance between the focal spot on the target and the skin surface of the patient

Concerning the foam proportioning equipment test, which of the following is true?

A. Annual testing is required B. Semi-annual testing is required C. Quarterly testing is required D. No time frame for testing is required, however, the pump operator must be able to perform the test

When learning an asymmetric bimanual skill in which one limb performs a more difficult task, the preferred practice approach is to train:

A. The limb that performs the easier task first B. Both limbs together at all times C. The limb that performs the more difficult task first D. All the above are appropriate