Is non-fasting screening reliable and accurate for measuring cholesterol levels? Yes. There is no significant difference in cholesterol levels measured between non-fasting and fasting tests. Related to Health Screening Medical Services Related articles Is non-fasting screening reliable and accurate for diabetes screening? What do I need to prepare before the day of my health screening? When and how will I receive my health screening results? How will the doctor review my health screening results with me? Where is the nearest DA Clinic I can visit for my health screening?