The Nurse Is Percussing a Patient's Kidneys as Part of the Physical

The nurse is percussing a patient's kidneys as part of the physical assessment. Which nursing action displays a need for further instruction regarding this assessment technique?

A) The nurse focuses the examination at the patient's costal vertebral angles.
B) The nurse asks the patient to sit on the side of the examination table.
C) The nurse gently strikes the patient with the palmar surface of the hand.
D) The nurse applies the technique to either side of the spine between the last rib and the lumbar vertebrae.