Fasting Before Blood Tests

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3 Answers

These messages are for mutual support and information sharing only. Always consult your doctor before trying anything you read here.
Should you eat before dilantin level
Fasting isn't necessary for serum Dilantin/Phenytoin level, make sure your doctor knows about all your medication, supplement and herbs though.
Not helpful. If fasting is required, it must be known how long before the test one should abstain from eating and/or drinking.
Usually 12 hours, so you eat the other night before 8pm, and start fasting until next morning you get the blood withdrawn.
What do I eat when fasting.  This information doesn't give me the information I need. I go for blood work tomorrow,  need to know.
fasting means don't eat or drink anyting within 8 hours of your blood test.
what about water to drink
Water is an exception. If the doctor has told you to fast before a blood test, it means you should not eat or drink anything, except water, for several hours before your test. Tests like glucose tests and lipid tests require fasting.