The nurse reviews a client's laboratory results for a client admitted with gastrointestinal (GI) bleeding who has no visible hemorrhoids on inspection of the anal area. Which laboratory test indicates that the client’s bleeding is not yet resolved? Reference Range: Hematocrit (Hct): 42% to 52% Prothrombin time (PT): 11.0 to 12.5 seconds Glycosylated hemoglobin (A1C): 4% to 5.9%