Ferritin test
What is being analysed?
Ferritin is a protein found inside cells that stores iron and releases it in a controlled fashion. In a ferritin test, ferritin levels in the blood are measured to assess the body's iron stores.
What does the result mean?
The result indicates the amount of ferritin present in the blood. Higher levels suggest increased iron stores, while lower levels may indicate iron deficiency.
Why perform the analysis?
The analysis helps diagnose conditions related to iron metabolism, such as iron deficiency anaemia, hemochromatosis (excess iron storage), or chronic diseases affecting iron metabolism.
The analysis is typically ordered when a patient shows symptoms of iron deficiency or excess iron, such as fatigue, weakness, or abnormal blood counts.
What sample is required?
A blood sample is required for ferritin analysis. A healthcare professional will draw blood from a vein, usually in the arm.
Is any prior preparation necessary?
No specific preparation is usually needed. However, it's advisable to inform the healthcare provider about any medications or supplements being taken, as they may affect the results.
How will the results be used?
Ferritin levels are used in conjunction with other blood tests, such as haemoglobin and iron studies, to diagnose and monitor iron-related disorders.
What are the normal values?
Normal ferritin levels vary depending on age, sex, and other factors. However, in adults, normal ranges typically fall between 20 to 300 nanograms per millilitre (ng/mL) for males and 10 to 150 ng/mL for females.
Ferritin levels reference table:
|
Age group |
Male (ng/mL) |
Female (ng/mL) |
|---|---|---|
|
Infant |
25-200 |
25-200 |
|
Child |
7-140 |
7-140 |
|
Adolescent |
12-150 |
12-150 |
|
Adult |
20-300 |
10-150 |
|
Elderly (65+) |
20-300 |
10-150 |
Remember, interpreting ferritin levels should always be done in consultation with a healthcare professional, as they can vary based on individual circumstances and medical history.
What does having altered values mean?
- High ferritin levels: Elevated ferritin levels may indicate conditions such as hemochromatosis, liver disease, inflammation, or certain types of cancer.
- Low ferritin levels: Decreased ferritin levels are often associated with iron deficiency anaemia, chronic diseases, malnutrition, or excessive bleeding.