[Solved] Which of the following is a contractual savings institution? A) A life insurance company B) A credit union C) A savings and loan association D) A mutual fund 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.