Vitamin A, Serum or Plasma

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.