Iron
Private Iron blood test in London for £38, measuring one circulating iron marker with laboratory results expected in around 1 business day.
Turnaround time
1 business day
Biomarkers count
1
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Overview of the Iron Test
The Iron blood test measures the amount of circulating Iron in the blood at the time of collection.
The test contains 1 biomarker: Iron.
Iron is an essential mineral required for the production of Haemoglobin, the oxygen-carrying protein within red blood cells.
It is also involved in cellular energy production and several enzyme systems.
Iron deficiency is one of the most common nutritional deficiencies and can eventually lead to Iron-deficiency anaemia.
However, Serum Iron on its own is not the best measure of total body Iron stores.
Circulating Iron can fluctuate considerably during the day and can be influenced by meals, Iron supplements, inflammation and recent treatment.
Ferritin provides information about stored Iron, while Transferrin, Total Iron Binding Capacity and Transferrin Saturation help assess Iron transport and availability.
For this reason, an isolated low Serum Iron result does not automatically prove Iron deficiency.
Similarly, a high Iron result alone does not diagnose haemochromatosis or Iron overload.
The test can nevertheless be useful as part of a broader Iron assessment or where a clinician specifically wants to measure circulating Iron.
Where anaemia, Iron deficiency or Iron overload is the main clinical question, combining Iron with Ferritin, Transferrin, TIBC and Transferrin Saturation generally provides more useful information.
What Does the Iron Test Check?
This test provides a snapshot of the amount of Iron circulating in the bloodstream at the time the specimen is collected. This test measures 1 biomarker.
Iron
Measures circulating Serum Iron and provides information about the Iron currently present in the bloodstream for transport and use by tissues.
Who May Benefit From the Iron Test?
Iron testing can be useful when deficiency, anaemia, excessive Iron or changes in Iron handling are being investigated.
People with suspected Iron deficiency - Serum Iron can contribute to a wider Iron-status assessment.
People with unexplained anaemia - Iron results can be interpreted with Ferritin and the Full Blood Count.
People with heavy menstrual bleeding - Chronic blood loss can progressively reduce Iron stores.
People with gastrointestinal blood loss or malabsorption concerns - Iron deficiency can occur when loss exceeds absorption.
People following highly restrictive diets - Inadequate dietary Iron intake can contribute to deficiency.
People taking Iron supplements - Testing may occasionally form part of treatment monitoring.
People with suspected Iron overload - Serum Iron contributes to assessment but should not be used without Ferritin and Transferrin Saturation.
People with a previous abnormal Iron result - Repeat testing under consistent conditions can help clarify whether the finding persists.
How to Prepare
Do not take additional Iron specifically to alter the test result.
If you are already receiving medically prescribed Iron treatment, do not stop it unless instructed by the clinician managing your treatment.
Symptoms and Reasons to Consider the Iron Test
Symptoms associated with Iron deficiency usually become more pronounced as depletion progresses, but they are not specific enough to diagnose deficiency without blood testing.
Persistent fatigue or low energy - Iron deficiency and anaemia can reduce oxygen delivery and physical stamina.
Reduced exercise tolerance - Low Haemoglobin or Iron deficiency can contribute to breathlessness and poor endurance.
Dizziness or light-headedness - Anaemia is one of many possible causes.
Pale skin - Pallor can occur when Haemoglobin becomes significantly reduced.
Headaches - Anaemia can contribute, although headaches have many other causes.
Hair thinning with possible nutritional deficiency - Iron depletion may contribute in selected individuals.
Brittle nails - More substantial or longstanding Iron deficiency can affect nail health.
Heavy menstrual bleeding - Ongoing blood loss is an important risk factor for depleted Iron stores.
These symptoms have many possible causes, and Serum Iron should not be used alone to diagnose Iron deficiency.
Severe breathlessness, chest pain, fainting or significant symptomatic anaemia requires medical assessment.
How to Book Your Iron Test
The standalone Iron test can be booked privately when circulating Serum Iron is required as an individual marker or as part of a broader nutritional assessment.
Choose the Iron
Select the individual Iron blood test online.
Select your sample collection option
Choose an in-clinic blood draw or professional home or hotel phlebotomy.
Attend your appointment
A trained healthcare professional collects the required venous blood specimen.
Laboratory analysis
Your serum is analysed to measure circulating Iron.
Receive your results securely
Your authorised result is delivered securely and can be interpreted alongside Ferritin and other Iron markers where appropriate.
When Will I Receive My Results?
The current expected turnaround for the Iron blood test is approximately 1 business day after your sample reaches the laboratory.
Iron is a routinely available biochemical measurement and can normally be processed rapidly.
The result is released after laboratory analysis, quality-control checks and authorisation.
Turnaround begins from laboratory receipt rather than necessarily from the exact time your blood is collected.
If Iron is ordered with a larger anaemia or specialist profile, other components may have different turnaround times.
Understanding Your Results
A low Serum Iron result means the circulating Iron concentration was below the laboratory reference interval at the time of collection.
This can occur with Iron deficiency but also during inflammation, infection and other conditions that alter Iron distribution.
A normal Serum Iron does not completely exclude depleted Iron stores because circulating concentrations fluctuate.
A high result can occur after Iron supplementation or treatment and can also be seen in disorders of Iron overload.
However, one high Serum Iron result does not diagnose haemochromatosis.
For meaningful interpretation, Serum Iron is usually considered with Ferritin, Transferrin, TIBC and Transferrin Saturation.
The Full Blood Count provides additional information where anaemia is the clinical concern.
Why Book With London Blood Tests?
This test provides rapid private measurement of circulating Iron where a standalone result is required.
Targeted Serum Iron measurement - Provides a direct measurement of circulating Iron.
Useful within anaemia assessment - Can complement the Full Blood Count and Ferritin.
Relevant to deficiency investigation - Provides additional information about Iron availability.
Can support Iron-overload assessment - Best interpreted alongside Ferritin and Transferrin Saturation.
Fast results - Current turnaround is approximately 1 business day.
Private blood collection - Clinic and home or hotel phlebotomy options are available.
Clear pricing - The Iron test costs £38.
Private Iron Blood Test in London
London Blood Tests provides private Iron blood testing in London for people requiring measurement of circulating Serum Iron.
The test costs £38 and measures 1 biomarker.
Results are expected approximately 1 business day after laboratory receipt.
Because Serum Iron varies with time, meals and inflammation, it is usually more informative when interpreted alongside Ferritin and other Iron-status markers.