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Yes, usually your doctor will ask you not to eat anything after midnight the night before you are to get your blood tested. The test gets more accurate results that way.

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13y ago

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Fasting before blood draw?

You only need to fast before blood work if you are having a fasting blood glucose blood test. Not each blood drawing will require you to fast. If you are required to fast, you may still drink water before your blood work.


Do you have to be fasting for a prealbumin blood test?

No, fasting is not required for a prealbumin blood test. It can be done at any time regardless of fasting status.


Is fasting required for a blood test?

yes


Do you need to fast for a hemoglobin and hematocrit?

Fasting is not typically required for a hemoglobin and hematocrit test. These tests measure the levels of red blood cells in the blood and do not require fasting for accurate results.


How many hours fasting is required before going for blood sugar test?

for fasting blood sugar 7 or 8 hours sufficient. for random or ppbs there is no need for fasting.


Is fasting required for chem blood test?

Yes, fasting is required for certain blood tests, such as fasting blood sugar or lipid profile tests, to get accurate results. It is recommended to fast for 8-12 hours before these tests by not eating or drinking anything besides water. Be sure to follow your healthcare provider's instructions for fasting before your blood test.


When fasting for blood work can you drink milk?

No, it is generally recommended to only consume water when fasting for blood work. Milk contains calories and nutrients that can affect the results of certain blood tests. It is best to follow your healthcare provider's instructions for fasting before blood work.


Is fasting required for a HDK1 CD57 blood panel?

Yes, fasting is not required for an HDK1 CD57 blood panel. This test is typically used for identifying patients with Lyme disease or other chronic infections and does not require fasting before the sample collection.


What blood work do you need to fast for?

Fasting is typically required for blood work that measures glucose levels, such as a fasting blood glucose test or an oral glucose tolerance test, as well as lipid panel tests that assess cholesterol and triglycerides. Fasting usually means no food or drink (except water) for 8-12 hours prior to the test. It's important to follow your healthcare provider's specific instructions regarding fasting for any blood work. Always consult with your doctor if you have questions about preparation for lab tests.


What blood tests for dogs and cats require fasting?

Blood urea nitrogen tests require a 12 hour fasting before hand. Preanesthetic blood work requires a fasting before hand also. Most all blood work requires a 12 hour fasting before hand.


What type of specimen is required for most blood tests?

For most of the blood tests fasting blood specimen is required


Do you need to fast for B12 and folate blood test?

Fasting is generally not required for B12 and folate blood tests. These tests can be done at any time of the day without fasting.