Liver function tests are blood tests that measure various substances produced by your liver, providing important information about its overall health and function. These tests include liver enzymes, total protein, bilirubin, LDH, and prothrombin time (PT).
often, liver function tests typically require fasting. You should avoid eating or drinking for 10-12 hours before the test.
Certain medications can also affect test results, so it’s essential to inform your healthcare provider about any medications you’re taking
Yes, liver function tests often require fasting, typically for 8-12 hours before the blood draw. Here's why fasting is important for these tests:
Eating can affect the levels of certain substances in your blood, such as glucose (sugar) and fats. Fasting ensures these baseline levels are measured, providing a more accurate picture of your liver function.
Fasting helps standardize test results, allowing for easier comparison with reference ranges and monitoring changes over time.
However, there can be exceptions:
Specific Tests: Some liver function tests might not require fasting, especially if they focus on a specific aspect of liver function.
If you have certain medical conditions like diabetes or are taking medications that can be dangerous to skip, your doctor might adjust the fasting protocol.
Conclusion: abstinence of food and drinks except water is preferred but not must before LFT or liver function test
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