The Biggest Mistake I Made When Studying For The ASCP Exam 🤯🔬 The ASCP is the most significant test a Medical Laboratory Scientist will take in their career. Passing this exam certifies a student as a Medical Laboratory Scientist, proving their knowledge and skills in a clinical laboratory. When I began studying for the ASCP, I did a minimum of 50 practice questions per day, with one full-length practice exam per week. I was scoring between 40-50% on my exams, which meant I pretty much had a 5