Vitamin B7 (Biotin) Blood Test

A vitamin B7 blood test measures the level of biotin (vitamin B7) in the bloodstream, which plays a crucial role in metabolism, cell growth, and fatty acid synthesis.

Vitamin B7, also known as biotin, is essential for various metabolic processes, including the synthesis of fatty acids, amino acids, and glucose. Deficiency in biotin can lead to symptoms such as hair loss, skin rashes, brittle nails, neurological issues (e.g., depression, lethargy, hallucinations), and conjunctivitis. Testing can help diagnose a deficiency and allow for timely intervention to correct it. High levels of biotin from supplements can interfere with various lab tests, including those measuring thyroid hormones, troponin (a cardiac marker), and other hormones. This interference can lead to false results, potentially causing misdiagnosis or inappropriate treatment. Monitoring biotin levels ensures that supplementation is necessary and maintained at a safe level.