The RT Who Assesses the Patient to Qualify Him or Her

The RT who assesses the patient to qualify him or her for home oxygen therapy should do which of the following?
1) Be aware of the guidelines and criteria for qualifying the patient for oxygen therapy.
2) Communicate the process for qualifying for oxygen to the patient.
3) Be directly involved in assessing the patient to qualify the patient for oxygen therapy.
4) Be aware of the physical and function limitations the patient has and assess oxygen needs with activity.

A) 1 and 3
B) 2 and 3
C) 1, 2, and 4
D) 2, 3, and 4