How long should you not drink alcohol before a blood test?
- How long should you not drink alcohol before a blood test?
Avoiding alcohol for up to 24 hours beforehand is usually required; additionally, you may or may not be required to avoid food for up to 8 hours before the test. Other nutritional tests: Blood tests that measure vitamins and minerals (such as iron) often require fasting beforehand.
- What should I avoid before a cholesterol test?
Standard practice used to require a person to fast for 9–12 hours before taking a cholesterol test, meaning that they should have no food or drink other than water during that time.