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Micronutrients, B-Vitamin Blood Test Panel

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The Micronutrients B-Vitamin Blood Test Panel measures levels of B-vitamins to identify deficiencies that may cause health problems.


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Test Code:


CPT Code(s):



Immunoassay (IA) • Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)




Overnight fasting is required. Avoid vitamin supplements for 24 hours prior to collection.

Test Results:

4-6 days. May take longer based on weather, holiday, or lab delays.

Walk-In Lab is prohibited from selling Quest tests to residents in the following states:AZ, NY, NJ, RI

What is the purpose of this test?

The Micronutrients, B-Vitamin Blood Test Panel is a comprehensive medical test designed to measure the levels of B-vitamins in the blood. The primary purpose of this test is to identify any deficiencies in the body that may be contributing to a variety of health problems. B-vitamins are essential for the proper functioning of the body and are important in various metabolic processes, including the metabolism of carbohydrates, proteins, and fats. The panel measures the levels of B1 (thiamine), B2 (riboflavin), B3 (niacin), B5 (pantothenic acid), B6 (pyridoxine), B9 (folate or folic acid), and B12 (cobalamin) vitamins. 

By identifying any deficiencies in these essential nutrients, healthcare providers can recommend appropriate dietary changes or supplements to help improve overall health and prevent any potential health issues. This test is particularly useful for individuals who follow restrictive diets, have a history of malnutrition, or have conditions that affect nutrient absorption. In summary, the Micronutrients, B-Vitamin Blood Test Panel is an essential tool in determining an individual's nutritional status and provides valuable information for making appropriate recommendations to achieve optimal health.


The Micronutrients, B-Vitamin Blood Test Panel includes:

Folate - Folate, also known as vitamin B9, is a nutrient that is essential for cell growth and function. It is especially important for pregnant women because it helps prevent birth defects in the baby's brain and spine. Folate is found in many foods, such as leafy greens, citrus fruits, beans, and fortified cereals.

Vitamin B1 (Thiamine) - Vitamin B1, also known as thiamine, is an essential nutrient that our body needs to convert food into energy. It helps in the functioning of the nervous system, muscles, and heart. Thiamine can be found in various foods such as whole grains, meat, fish, and beans. A deficiency of vitamin B1 can lead to several health problems, including weakness, fatigue, and nerve damage.

Vitamin B2 - Vitamin B2, also known as riboflavin, is one of the essential B-complex vitamins that our body needs to function properly. It plays a crucial role in breaking down carbohydrates, fats, and proteins to produce energy and also acts as an antioxidant to protect our cells from damage. It's found in many foods, including milk, eggs, leafy green vegetables, and whole grains, and is necessary for maintaining healthy skin, eyes, and nervous system.

Vitamin B3 - Vitamin B3, also known as niacin, is a water-soluble vitamin that plays an important role in converting food into energy in our bodies. It is also essential for maintaining healthy skin, nerves, and digestion. Vitamin B3 can be found in many foods, including meat, fish, nuts, and legumes, or it can be taken as a supplement.

Vitamin B5 - Vitamin B5, also known as pantothenic acid, is a water-soluble vitamin essential for metabolizing carbohydrates, proteins, and fats. It is involved in producing energy, as well as creating red blood cells and certain hormones. Vitamin B5 is found in many foods, including meat, poultry, fish, whole grains, and vegetables such as sweet potatoes and broccoli.

Vitamin B6 - Vitamin B6, also known as pyridoxine, is a water-soluble vitamin that plays a vital role in the body. It helps to convert food into energy, supports the immune system, and helps to maintain healthy brain function. It is found in many foods, such as meat, fish, poultry, bananas, and potatoes.

Vitamin B12 - Vitamin B12 is a nutrient that helps keep the body's nerve and blood cells healthy and helps make DNA, the genetic material in all cells. It also helps prevent a type of anemia called megaloblastic anemia, which makes people tired and weak. Vitamin B12 is found in many animal-based foods like meat, fish, and dairy products.


Benefits of the Micronutrients, B-Vitamin Blood Test Panel:

  1. Evaluation of Nutritional Status: The panel measures levels of important micronutrients such as vitamins B1 (thiamine), B2 (riboflavin), B3 (niacin), B6 (pyridoxine), B9 (folate), and B12 (cobalamin). These nutrients, as well as others like vitamin D, magnesium, zinc, and copper, are essential for various physiological functions, including energy metabolism, nervous system function, immune function, and DNA synthesis.
  2. Identification of Deficiencies: Low levels of micronutrients, particularly B-vitamins, can lead to deficiencies that may manifest as symptoms such as fatigue, weakness, cognitive impairment, mood disturbances, and neurological problems. The Micronutrients, B-Vitamin Blood Test Panel can help identify deficiencies early on, allowing for timely intervention through dietary modifications or supplementation.
  3. Assessment of B-Vitamin Metabolism: The panel includes tests to evaluate markers of B-vitamin metabolism, such as methylmalonic acid (MMA) and homocysteine. Elevated levels of MMA and homocysteine may indicate impaired B-vitamin metabolism, which can occur in conditions such as vitamin B12 deficiency or folate deficiency.
  4. Support for Healthy Pregnancy: Adequate levels of B-vitamins, particularly folate (vitamin B9), are crucial during pregnancy for preventing neural tube defects and supporting fetal development. The panel can help assess maternal B-vitamin status, ensuring that pregnant women have sufficient nutrient levels to support a healthy pregnancy and fetal development.
  5. Management of Chronic Diseases: Certain chronic conditions, such as diabetes, cardiovascular disease, and neurodegenerative disorders, are associated with altered B-vitamin metabolism and micronutrient deficiencies. The Micronutrients, B-Vitamin Blood Test Panel can provide insights into nutrient status, guiding dietary and supplementation strategies to support overall health and manage disease risk.
  6. Optimization of Athletic Performance: B-vitamins play key roles in energy metabolism, muscle function, and recovery, making them important for athletes and individuals engaged in physical activity. Assessing B-vitamin status through this panel can help athletes optimize their nutrient intake to support performance, endurance, and recovery.
  7. Personalized Supplementation: Based on the results of the Micronutrients, B-Vitamin Blood Test Panel, healthcare providers can recommend personalized supplementation regimens tailored to address specific nutrient deficiencies or metabolic imbalances, promoting overall health and well-being.

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