Which tests require fasting?
Certain tests, such as some cholesterol and blood sugar tests, may require fasting. Your provider or the lab will tell you exactly what is needed for your specific test.
Which tests do not require fasting?
Many tests do not require fasting. Instructions vary by test, so it is important to follow the guidance you are given.
What happens if I forget to fast?
If you are unsure whether you needed to fast, or you forgot, contact the office. In some cases the test can still be done, or it may need to be rescheduled.
How do I know my instructions?
When your test is ordered, ask for clear instructions. The team is happy to confirm whether fasting is needed and for how long.
Related questions
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Read the answerEducational purpose: This information is provided for general educational purposes and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider about your specific health situation. Contact TruHealth Primary Care for current information about services, hours, coverage, and appointments.