Folic acid (Vitamin B9)

This test is done to measure folate levels, an essential vitamin required for DNA production, cell division, and red blood cell formation. Deficiency can lead to megaloblastic anemia, fatigue, and neurological symptoms. It may result from poor diet, malabsorption, increased demand (e.g., pregnancy), or certain medications.

• Fasting for 6–8 hours may be recommended.
• Avoid folic acid supplements before testing if instructed.
• Inform your healthcare provider about medications affecting folate levels.
• Follow any instructions provided by the laboratory or healthcare provider.