Final answer:
The nurse should use the assessment techniques of Inspection, Palpation, and Percussion when examining the liver.
Step-by-step explanation:
When examining the liver for a patient with severe pain in the right upper quadrant of the abdomen, the nurse should use the assessment techniques of Inspection, Palpation, and Percussion.
Inspection involves visually examining the abdomen for any abnormalities, such as swelling or discoloration.
Palpation is the process of gently pressing on different areas of the abdomen to assess for tenderness or masses.
Percussion is the technique of tapping on the abdomen to listen for sounds and assess the size and position of the liver.