[Solved] Why does a researcher use a citator? A)to check on authorities issued subsequent to a court decision B)to determine whether a private letter ruling exists on the subject C)for examples of the application of a tax provision D)none of the above Blood Tinged Urine: Urine that contains blood, visible to the naked eye or under a microscope, indicating possible underlying medical conditions. Urinalysis: A laboratory test analyzing the content of urine for medical diagnostic purposes. Cyanosis: A bluish or purplish discoloration of the skin and mucous membranes due to insufficient oxygen in the blood. Buccal Mucosa: The inner lining of the cheeks, consisting of a mucus-secreting membrane, often examined in medical and dental evaluations.