A patient who is scheduled for surgery with general anesthesia in 1 hour is observed with a moist, but empty water glass in his hand. Which assessment finding may indicate that the patient drank a glass of water?
a. Flat abdomen without movement upon inspection
b. Tenderness at left upper quadrant upon palpation
c. Easily heard, loud gurgling in the right upper quadrant
d. High-pitched, hollow sounds in the left upper quadrant