The Medical College Admission Test (MCAT) is a computer-based standardized examination for prospective medical students in the United States, Australia, Canada, and Caribbean Islands. It is designed to assess problem solving, critical thinking, written analysis and knowledge of scientific concepts and principles.The current MCAT consists of four distinct sections that are individually scored. Each section is allotted either 90 or 95 minutes and tests between 50 and 60 questions. Including breaks, the full examination lasts approximately 7.5 hours. The Veterinary College Admission Test, often called the VCAT, was a former veterinary school admissions examination. Depending on the school, pre-veterinary students usually take the Graduate Record Examinations (GRE) or the Medical College Admission Test (MCAT) for entrance to schools now.