The Nurse Is Caring for a Client Who Has Smoked

The nurse is caring for a client who has smoked for many years and documents that "clubbing is present." Which of the following techniques is the best way for the nurse to determine the presence of clubbing?

A) Place two thumbs touching side-by-side.
B) Place two of the same fingers from each hand together.
C) Place two index fingers together tip-to-tip.
D) Place the hands out straight with the palm sides down.