Fasting for a cholesterol test is relatively easy, although sometimes uncomfortable, depending on when your test is scheduled. What you eat and drink has an impact on the results, even if you follow a cholesterol-free diet. Beverages such as coffee and tea can cause incorrect results, hence the reason for the fasting. If you already have problems with your cholesterol, your doctor is most likely ordering the test again to determine if your treatment plan is working, or if adjustments need to be made. Following his instructions can make a big difference.
Step 1
Ask your doctor what types of cholesterol he is performing the test for. The American Heart Association states total and HDL cholesterol levels are not affected by food and beverages; if you do not fast prior to your test, these are the only values he can check. LDL cholesterol and triglycerides are affected by food and beverages prior to your test.
Step 2
Talk to your doctor about special requirements. Some medications such as birth control pills can affect the results of your test. Discuss this with your doctor and ask him how far in advance you need to stop taking these medications prior to your test.
Step 3
Ask your doctor when your fast needs to begin. Most doctors require no food or beverages nine to 12 hours prior to your blood test. The only exception is water. Generally you cannot consume anything after midnight the day before the blood draw.
Step 4
Make your appointment early in the morning. When your doctor orders your blood test, it is up to you to make the appointment; do so as early in the morning as possible. This helps reduce the temptation of eating or drinking anything, no matter how minuscule. If you don't fast completely, your doctor might order another test.
Step 5
Prepare a small snack and bring it with you. Use the guidelines of your cholesterol-free diet, and choose a healthy snack to bring with you. This gives you something to eat until you return home and can make your breakfast.
Tips and Warnings
- All adults ages 20 and over should have a fasting cholesterol blood test once every five years. You may require a test more often if you have risk factors such as a family history of heart disease, are obese, inactive or your blood test returns abnormal results. This is at the discretion of your doctor.
Things You'll Need
- A healthy snack
