Is there any preparation required for a CBC test?

Generally, no special preparation is needed for a CBC test. You can eat and drink as normal unless your doctor has ordered other tests that require fasting. For example, if you're undergoing a lipid panel or glucose test along with your CBC, fasting for 8 to 12 hours may be required. It's also important to inform your doctor about any medications or supplements you're taking, as some may influence your blood count results. Following your doctor’s instructions ensures accurate results and helps guide appropriate treatment if necessary.