Download for FREE today - special Mnemonics Cheatsheet - so you can be SURE that you have that Must Know information down: bit.ly/nursing-memory Outline PAINS P-Pain in the right lower quadrant of the abdomen A-Anorexia-loss of appetite I-Increased temperature, WBC (15,000-20,000) N-Nausea S-Signs (McBurney's, Psoas) Description Psoas sign is pain when a patient extends their thigh while lying on their side with knees extended. It indicates irritation to certain abdominal muscles. McBurney's sign is if there is deep tenderness at McBurney's point, which is located on the right side of the abdomen, one-third the distance from the anterior superior iliac spine to the navel.