Normal immunoglobulin levels in healthy adults vary depending on the specific type of immunoglobulin, such as IgA, IgG, and IgM. These levels are typically measured in milligrams per deciliter (mg/dl).
Immunoglobulins, also known as antibodies, are proteins produced by the immune system to help fight off infections and diseases. Measuring their levels is a common way to assess immune function.
According to specific laboratory determinations provided by a manufacturer, the following reference intervals are indicated for healthy adults [35]:
Typical Adult Immunoglobulin Reference Intervals
| Immunoglobulin | Normal Range (mg/dl) |
|---|---|
| IgA | 70–400 |
| IgG | 700–1600 |
| IgM | 40–230 |
These ranges represent the levels expected in a healthy adult population and can serve as a guide for assessing individual immunoglobulin status.
It's important to remember that laboratory reference ranges can vary slightly between different laboratories due to variations in equipment, reagents, and testing methods. Therefore, results should always be interpreted in the context of the specific laboratory's reference values and the individual's clinical condition.
