The RN Needs Vital Signs Taken on the Four Clients

The RN needs vital signs taken on the four clients that have been assigned. Which of the four clients should be taken by the RN and not the Assistant in Nursing?

A) COPD client on 2 Lpm oxygen via nasal cannula.
B) Client with a pulse deficit requiring one nurse technique.
C) Post-op client of two days from gallbladder surgery.
D) Pneumonia client nearing discharge.