Haemoglobin
Private Haemoglobin testing in London for £88, measuring one blood-health marker with results expected in around 1 day.
Turnaround time
1 business day
Biomarkers count
1
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Overview of the Haemoglobin Test
The Haemoglobin blood test measures haemoglobin, the iron-containing protein within red blood cells that carries oxygen from the lungs to tissues throughout the body.
The test assesses 1 blood-health marker: Haemoglobin.
Haemoglobin is one of the most fundamental measurements used when assessing red blood cell health.
Each red blood cell contains haemoglobin molecules capable of binding oxygen in the lungs and releasing it throughout the body's tissues.
When haemoglobin falls below the expected range, the blood's oxygen-carrying capacity is reduced.
This laboratory finding is known as anaemia.
Anaemia has many possible causes, and the Haemoglobin result alone cannot establish why it has developed.
Iron deficiency is common, particularly where there is menstrual blood loss, dietary insufficiency or another source of ongoing blood loss.
Vitamin B12 or Folate deficiency, kidney disease, chronic inflammatory conditions, inherited blood disorders and other medical problems can also contribute.
Haemoglobin can also be higher than expected.
Dehydration can temporarily concentrate the blood, while smoking, prolonged high-altitude exposure, chronic low oxygen levels and conditions causing increased red blood cell production can also raise the measurement.
For this reason, Haemoglobin is often interpreted alongside Haematocrit, Mean Cell Volume, red blood cell count, Ferritin and wider iron studies.
A standalone Haemoglobin test provides a focused measurement.
A Full Blood Count provides a more detailed assessment of red cells, white cells and platelets where broader haematology information is required.
What Does the Haemoglobin Test Check?
The test measures the concentration of haemoglobin within the blood and provides information about red blood cell oxygen-carrying capacity. This test measures 1 biomarker.
Haemoglobin
Measures the concentration of the oxygen-carrying protein within red blood cells, supporting assessment of anaemia, red blood cell health and oxygen transport.
Who May Benefit From the Haemoglobin Test?
Haemoglobin testing can be useful when investigating possible anaemia, blood loss or changes in red blood cell concentration.
People experiencing persistent tiredness or weakness - Reduced haemoglobin can contribute to lower oxygen delivery and may be one possible explanation for these symptoms.
People with shortness of breath or reduced exercise tolerance - Anaemia can make physical activity feel more difficult, although many other conditions can produce similar symptoms.
People with heavy or prolonged menstrual bleeding - Repeated blood loss can contribute to iron deficiency and a fall in haemoglobin.
People with a history of iron deficiency - Haemoglobin can be assessed alongside Ferritin and wider iron studies.
People following treatment for iron, Vitamin B12 or Folate deficiency - Repeat testing can help assess whether haemoglobin is recovering.
People with a previous abnormal Haemoglobin result - Repeat measurement can establish whether a low or high value persists.
People undergoing routine blood-health assessment - Haemoglobin is one of the principal measurements included within a Full Blood Count.
People advised to investigate possible anaemia - The result can form the starting point for further testing where required.
How to Prepare
Normal hydration is preferable before testing.
Do not stop prescribed iron, vitamins or other medication simply to alter the result unless a clinician has specifically advised you to do so.
Symptoms and Reasons to Consider the Haemoglobin Test
Changes in haemoglobin can cause non-specific symptoms, while mild abnormalities may produce no noticeable symptoms at all.
Persistent fatigue - Reduced oxygen-carrying capacity can contribute to tiredness when haemoglobin is significantly low.
Weakness or reduced stamina - Anaemia can make ordinary activity or exercise feel more demanding.
Breathlessness - Low haemoglobin can contribute to shortness of breath, particularly during exertion.
Dizziness or light-headedness - These symptoms can occur with anaemia but are not specific to it.
Pale skin - Pallor can sometimes accompany more significant anaemia.
Heavy menstrual bleeding - Regular blood loss is an important reason to assess both haemoglobin and iron stores.
Known or suspected blood loss - Gastrointestinal, menstrual, surgical or other blood loss can reduce haemoglobin over time.
A previous low or high Haemoglobin result - Repeat measurement can help establish whether the change was temporary or persistent.
Haemoglobin does not identify the underlying cause of anaemia on its own.
If the result is low, additional testing may include a Full Blood Count, Ferritin, iron studies, Vitamin B12, Folate, kidney function or other investigations depending on the clinical context.
Severe breathlessness, chest pain, fainting, significant active bleeding or rapidly worsening symptoms require prompt medical assessment rather than relying only on routine private blood testing.
How to Book Your Haemoglobin Test
The Haemoglobin test can be booked privately for focused assessment of one of the principal markers of red blood cell health.
Choose the Haemoglobin
Select the individual Haemoglobin blood test online.
Select your sample collection option
Choose an in-clinic blood draw or professional home or hotel phlebotomy where suitable.
Attend your appointment
A trained healthcare professional collects the required venous blood sample.
Laboratory analysis
Your blood sample undergoes laboratory measurement of Haemoglobin.
Receive your results securely
Your authorised result is delivered securely and can be interpreted alongside wider haematology or iron markers where appropriate.
When Will I Receive My Results?
The current live London Blood Tests turnaround for Haemoglobin is approximately 1 day after laboratory receipt.
Haemoglobin is a routinely processed haematology measurement.
The blood sample still undergoes laboratory analysis, quality-control procedures and result authorisation before the report is released.
Turnaround begins when the specimen reaches the laboratory rather than necessarily from the exact time the blood is collected.
Occasional repeat analysis, specimen issues or laboratory delays can extend the expected reporting time.
Understanding Your Results
Your report shows the concentration of Haemoglobin in your blood together with the reference range used by the analysing laboratory.
A low Haemoglobin result indicates anaemia.
It does not establish the cause.
Additional assessment may be required to distinguish iron deficiency from Vitamin B12 or Folate deficiency, blood loss, chronic disease, kidney-related causes, inherited red blood cell disorders or other explanations.
Red blood cell indices from a Full Blood Count can provide important additional context.
For example, Mean Cell Volume indicates whether red blood cells are smaller or larger than expected.
Ferritin provides information about stored iron and can identify iron deficiency before or alongside a fall in haemoglobin.
A high Haemoglobin result can occur when the blood is concentrated because of dehydration.
Persistent elevation can have other causes, including smoking, prolonged low-oxygen states, high-altitude exposure or increased red blood cell production.
The laboratory's own reference range should take priority because expected values can vary according to sex, age, laboratory method and clinical circumstances.
Why Book With London Blood Tests?
London Blood Tests provides private access to focused Haemoglobin measurement with professional sample collection and rapid laboratory reporting.
Measures a core blood-health marker - Haemoglobin provides direct information about the oxygen-carrying component of red blood cells.
Useful when investigating anaemia - A low result identifies anaemia, while further tests can investigate the underlying cause.
Can complement iron testing - Ferritin and wider iron studies can be added where iron deficiency is a concern.
Useful for monitoring - Repeat Haemoglobin testing can help track changes after treatment or following a previous abnormal result.
Fast laboratory turnaround - Results are currently expected approximately 1 day after laboratory receipt.
Professional blood collection - Clinic and suitable home or hotel phlebotomy appointments are available.
Suitable as a standalone or wider assessment - More comprehensive Full Blood Count and general health profiles are available when additional information is required.
Clear pricing - The Haemoglobin test costs £88.
Private Haemoglobin Blood Test in London
London Blood Tests provides private Haemoglobin testing for people who want a focused measurement of this important red blood cell marker.
The test costs £88 and assesses 1 biomarker.
Results are expected approximately 1 day after laboratory receipt.
Haemoglobin is particularly useful when investigating anaemia, but an abnormal result may need to be considered alongside a Full Blood Count, Ferritin, iron studies, Vitamin B12, Folate or other investigations to establish the underlying cause.