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Checks for vitamin D deficiency. Very common, especially in northern climates.

Markers of oxidative balance per assay design. Sometimes added when chronic illness and inflammation research is a focus.

Measures biotin in blood. Used when hair, skin, or nail issues make deficiency or excess worth checking.

Measures total calcium in blood. Used with PTH and vitamin D when bones, kidneys, or parathyroid issues are suspected.

Ceruloplasmin is a vital protein manufactured in your liver responsible for binding and transporting copper throughout the body. A Ceruloplasmin Test measures the levels of this protein in your blood. This test is an important diagnostic tool, often used alongside others, to help identify Wilson disease—a rare genetic condition where the body cannot properly eliminate excess copper. Undiagnosed Wilson disease can lead to harmful copper accumulation in critical organs like the liver and brain. Understanding your ceruloplasmin levels provides crucial insight into your copper metabolism and overall health.

Coenzyme Q10 (CoQ10) is a crucial nutrient your body uses for making energy and protecting cells from damage. This essential molecule acts as a powerful, lipid-soluble antioxidant, protecting cell membranes and lipoproteins throughout your system. Because CoQ10 levels naturally decrease as you age, this test measures the total amount of CoQ10 in your plasma, including both the active reduced (ubiquinol) and oxidized (ubiquinone) forms. Understanding your total CoQ10 status provides valuable insight into this vital component of cellular health and antioxidant defense.

Copper is an essential trace mineral that plays a crucial role in forming bone, connective tissue, and melanin, and is vital for many processes in your body. This blood test measures the total amount of copper circulating in your serum or plasma, including both the free and protein-bound forms. Assessing your copper levels is useful for determining if you have a deficiency or an overload, both of which can lead to serious health concerns. Symptoms like unexplained anemia or low white blood cell counts (neutropenia) may signal a copper imbalance. By measuring your copper levels, this test helps healthcare providers diagnose or monitor conditions like Wilson disease and ensure your body maintains healthy mineral balance.

Measures folate in serum. Pairs with B12 work when anemia, diet limits, or pregnancy planning needs a folate check.

A Folate, RBC test offers a crucial, long-term look at your body's vitamin B9 status, providing a more stable measure than a standard serum test. Folate, or vitamin B9, is essential for vital processes like DNA synthesis and the formation of healthy red blood cells. Because folate remains in red blood cells for their full lifespan—about four months—this test helps clinicians monitor your average intake over several months. It is frequently ordered alongside B12 testing to help distinguish between nutritional deficiencies causing symptoms like anemia or fatigue. Understanding your RBC folate levels is key to supporting optimal cell growth and overall metabolic health.

Folate, also known as Vitamin B9, is absolutely essential for making healthy red blood cells and ensuring proper cell growth and function throughout the body. This blood test measures your current folate levels to check for possible deficiency, which can manifest as fatigue, weakness, or certain types of anemia. Maintaining adequate folate is particularly crucial during early pregnancy, as it significantly lowers the risk of serious birth defects of the brain and spine. If you have conditions that interfere with nutrient absorption or are experiencing unexplained lack of energy, understanding your folate status through this simple test can be a vital step toward better health.

Measures magnesium in blood. Used when cramps, arrhythmia risk, or absorption issues make levels relevant.

Magnesium is a critical electrolyte necessary for proper muscle, nerve, heart, and bone function. While a standard serum magnesium test only measures a fraction, the Magnesium, RBC test provides a more accurate assessment by measuring the magnesium stored inside your red blood cells. Since the majority of magnesium is stored in tissues and cells, this test is often preferred for uncovering true deficiency. It is particularly valuable for individuals managing chronic stress, metabolic dysfunction, or cardiovascular concerns, offering a crucial window into your long-term magnesium status. Understanding your intracellular magnesium level supports overall health maintenance and mineral balance.

An elevated MMA level is a key indicator that your body might not be utilizing Vitamin B12 effectively. This essential test measures the amount of methylmalonic acid in your blood or urine, a substance your body produces when digesting protein and which is critical for metabolism. Since Vitamin B12 plays a vital role in this process and in making red blood cells, this screening is most often used to diagnose a deficiency, especially if you are experiencing fatigue, weakness, or digestive problems. Identifying a B12 deficiency early is important as low levels can lead to health issues, including nerve damage. The MMA test helps healthcare providers get a clearer picture of your B12 status, even in cases where B12 levels appear normal.

Methylmalonic Acid (MMA) testing is a powerful diagnostic tool, as elevated levels of MMA in the blood often indicate a Vitamin B12 deficiency. Since Vitamin B12 is crucial for metabolism and red blood cell formation, low levels can lead to symptoms like persistent fatigue, weakness, or nerve issues such as tingling in the hands and feet. This serum test measures the concentration of MMA, offering a highly sensitive way to determine if your body is properly utilizing or absorbing B12, even in early or mild cases. Identifying a deficiency early is key, as proper diagnosis and treatment can help prevent potential long-term nerve damage. Ask your provider about this test if you suspect low B12 or are experiencing related symptoms.

Molybdenum is an essential trace element vital for key metabolic functions, but imbalances can lead to health issues like anemia or, in children, growth retardation. This serum or plasma test measures your current molybdenum concentration, offering critical insight into your nutritional status and overall wellness. Testing is particularly useful for individuals on restrictive diets, receiving parenteral nutrition, or those potentially exposed to toxic levels. By understanding your molybdenum levels, you can identify dietary issues, absorption problems, or overexposure, enabling proactive intervention to ensure metabolic balance.

Did you know calcium is vital for your heart, muscles, and nerves to work properly? This test measures your Parathyroid Hormone (PTH), a key player in regulating your body's calcium levels, helping uncover if parathyroid issues or kidney disease are the root cause of symptoms like brain fog or muscle trouble. If you’ve had abnormal calcium results, this simple blood draw offers a clearer picture of your internal balance, empowering you to manage your health before problems get worse.

The Copper RBC test measures the amount of copper stored inside your red blood cells, which gives insight into the body's general homeostasis of this essential trace element. Copper is crucial for making red blood cells and connective tissue, and helps the body absorb iron. Doctors often order this test to help diagnose or rule out mineral imbalances, particularly rare conditions like Wilson's disease, where copper accumulates excessively in organs. Conversely, it can also detect copper deficiency, which may lead to anemia or other developmental issues. Because copper metabolism is closely linked to liver function, this test is frequently used alongside other assessments like ceruloplasmin and liver function panels for a comprehensive health evaluation. Knowing your intracellular copper levels is key to understanding your metabolic health and monitoring treatment effectiveness.

Selenium is an essential trace element that performs critical functions within the body. This blood test measures the levels of selenium in your serum or plasma, helping to assess your status of this powerful nutrient. Selenium is fundamental because it forms selenoproteins, which are key players in antioxidant activity and protecting cells from oxidative damage. Furthermore, it contributes significantly to both thyroid hormone synthesis and a robust immune response. Understanding your selenium status can be an important step toward optimizing your body's defense mechanisms and overall metabolic health.

Vitamin A is absolutely essential for everything from healthy vision and cell growth to a strong immune system. The Vitamin A, Serum test measures the level of retinol, the main form of this fat-soluble vitamin, circulating in your blood. This measurement is crucial if you are experiencing symptoms like night blindness or persistent dry skin, which can indicate a deficiency. While uncommon in the US, deficiencies can lead to serious complications if left unaddressed. Alternatively, the test can detect toxic levels, usually from overuse of supplements, which may present as headaches or nausea. Taking this simple blood test gives you clarity on your Vitamin A status, helping you maintain optimal health.

Thiamine (Vitamin B1) is essential for cellular function, growth, and converting food into energy. This Whole Blood test directly assesses your body's thiamine status by measuring the biologically active form, thiamine diphosphate, which accurately reflects body stores. Because chronic alcohol use, certain medical conditions, and poor diet can severely impact B1 levels, doctors use this test to diagnose deficiency. Measuring this crucial vitamin is vital for patients experiencing symptoms like unexplained fatigue, neurological issues, or delirium. Get key insight into your nutritional status and metabolic health with this important assessment.

Rules out B12 deficiency, a common cause of fatigue and nerve issues.

Measures B12 and folate together. Quick check when anemia, diet limits, or nerve symptoms raise deficiency concern.

Riboflavin, or Vitamin B2, is essential for maintaining vibrant health because it works closely with other B vitamins to power key bodily functions. It plays a critical role in producing red blood cells and facilitating the release of energy from the proteins you eat, supporting proper growth and daily vitality. Without sufficient Vitamin B2, people can experience cracked lips, a sore throat, or fatigue associated with anemia. This targeted blood panel measures your current Riboflavin levels, providing the information necessary to prevent deficiencies and ensure this crucial nutrient is supporting your body's energy production and overall wellness.

Vitamin B6, in the form of Pyridoxal 5'-Phosphate (PLP), is critical for over 100 essential enzyme functions, particularly those governing amino acid and energy metabolism. The Vitamin B6, Plasma test measures your PLP levels, offering a clear assessment of your nutritional status. Low levels, sometimes recognized below 30 nmol/L, are associated with serious health concerns, including an increased risk for cardiovascular disease and chronic inflammatory conditions. This test is highly valuable for anyone concerned about optimal nutrient absorption or who is managing chronic health issues, ensuring this vital cofactor is sufficient for supporting your body's energy and metabolic pathways.

Measures vitamin C in blood. Used when diet is very limited or absorption problems make deficiency plausible.

Zinc is an essential trace element vital for numerous bodily functions, including immune health and wound healing. The Zinc, RBC test provides a reliable assessment of your intracellular zinc stores, reflecting long-term status better than serum tests. Low levels have been associated with chronic conditions like alcoholic cirrhosis and gastrointestinal disorders, while high levels could indicate industrial exposure or toxicity. If you have chronic infections, persistent skin issues, or known metabolic disorders, this test offers crucial insights into your mineral balance. Understanding your RBC zinc concentration is key to maintaining proper cardiorespiratory function and overall homeostasis. This simple blood test helps you and your doctor evaluate if supplementation or dietary changes are necessary.

Zinc is essential for immunity and growth, yet deficiency is common in high-risk groups like the malnourished or those with GI issues. This test measures the zinc level in your blood, providing crucial insight if you have symptoms like hair loss, frequent illness, or slow wound healing, which can help you optimize your health and immune resilience.