Marylebone Parameters
Ferritin
The Ferritin blood test measures the level of ferritin, a protein that stores iron in the body. Ferritin reflects the amount of iron held in reserve and is one of the most reliable ways to assess overall iron status. Iron is essential for producing healthy red blood cells and transporting oxygen around the body, making ferritin an important marker for energy levels and general wellbeing. Low iron stores are a common cause of tiredness and weakness, particularly in women, vegetarians, and individuals with dietary restrictions or chronic health conditions. Because symptoms of iron deficiency can be subtle or develop gradually, ferritin testing plays a key role in identifying problems early.
What's included
Note: the live page displays 'Code: FR' — using MLFR per your master list.
- Ferritin
What is ferritin and why is it important?
Ferritin is a protein found mainly in the liver, spleen, and bone marrow, where it stores iron for future use. Only a small amount of ferritin circulates in the blood, but this level closely reflects the body's total iron stores.
Unlike serum iron levels, which can fluctuate throughout the day, ferritin provides a more stable indication of long-term iron availability. This makes it especially useful when investigating ongoing symptoms or monitoring treatment over time.
Why might I need a ferritin test?
A ferritin test may be recommended if you experience symptoms such as persistent fatigue, weakness, shortness of breath, headaches, dizziness, or difficulty concentrating. It is also commonly used when investigating hair loss, restless legs, or unexplained anaemia.
Ferritin testing is frequently requested during routine health checks, pregnancy planning, or to monitor iron levels during supplementation. It is also useful in assessing iron overload or monitoring certain inflammatory and liver-related conditions.
What do the results mean?
Low ferritin levels usually indicate reduced iron stores and may suggest iron deficiency, even if haemoglobin levels are still within the normal range. Identifying low ferritin early allows intervention before anaemia develops.
High ferritin levels can occur with iron overload but may also be seen in inflammation, infection, or liver disease. For this reason, results are always interpreted in combination with symptoms and other blood tests.
How is the test performed?
The ferritin test is performed using a simple blood sample collected during a short appointment. The procedure is quick and routine, and our clinical team will ensure you are comfortable throughout.
Do I need to prepare?
No special preparation or fasting is required for a ferritin test unless you have been advised otherwise.
Why Choose Marylebone Diagnostic Centre?
Marylebone Diagnostic Centre provides accurate ferritin testing with fast turnaround times, helping you get clear answers without unnecessary delays. Our experienced clinical team focuses on patient care, clear communication, and reliable results, supporting you in making informed decisions about your health.
Frequently asked questions
When will I receive my results?
Should I discuss my results with a doctor?
