For accurate results, you may need to fast for certain tests. This requires you to avoid certain foods and drinks. Learn more ...

Drinking diet soda before a fasting blood test may alter results. Stick to water or unsweetened drinks as advised by your ...

DEAR DOCTOR K: I heard that fasting will no longer be required before a cholesterol test. Will the results still be as accurate? DEAR READER: To answer your question, I need to first describe what a ...

You can consume nothing but water for at least 8 hours before a fasting glucose test. You may also need to follow a low carb diet and avoid exercise for some time before. A fasting glucose test ...

Many people go through health screenings that include a fasting blood test, which is used to find people at-risk for diabetes and to monitor those with the disease. Many people go through health ...

It depends on the type of coffee you drank and the type of blood test you have scheduled. Black coffee typically does not affect tests that measure red blood cell count, liver function, or kidney ...

A new rapid blood test being trialled by the NHS can fast-track diagnosis of sepsis and meningitis in children.