Absolute Lymphocyte Count
This test measures the total number of lymphocytes in your blood. Lymphocytes are immune cells critical for fighting infections. Abnormal counts may indicate viral infections, immune deficiencies, or blood disorders.
6 hours
Turnaround
Blood
Sample
What the Absolute Lymphocyte Count test tells you
Lymphocytes are the cells that give the immune system its memory. The population includes T cells, which direct and carry out cell-mediated defence, B cells, which mature into the plasma cells that make antibodies, and natural killer cells, which act early and without prior exposure. The absolute lymphocyte count reports how many of these cells are circulating, as a number rather than as a percentage, and it is normally reported as part of a full blood count differential and read as a pattern with the other cell lines.
The number moves for a wide range of reasons, most of them temporary. Viral infections typically raise it, sometimes markedly and with characteristic changes in the appearance of the cells on a blood film. Adrenaline, strenuous exercise and acute stress can lift it briefly by shifting cells from tissue into the circulation. It falls with corticosteroid treatment, chemotherapy, and during many acute illnesses. A shift in either direction shortly after an infection is extremely common and, on its own, usually means nothing at all — which is why an isolated abnormal count is normally just repeated once things have settled.
What matters is persistence and context. A sustained, unexplained rise in an adult — particularly alongside an enlarged spleen or lymph nodes — is investigated properly, since chronic lymphocytic leukaemia and lymphoma can present that way. A persistently low count raises questions about immune competence and prompts a look for causes ranging from medication to HIV to bone marrow disease. Neither conclusion is drawn from a single result; the count is always interpreted with the rest of the blood count and the clinical picture.
Helps assess immune function, investigate recurrent infections, and aid in diagnosing leukaemias, lymphomas, and immune deficiency states.
The lymphocyte count is a practical first indicator of whether the adaptive immune system has the cells it needs, which matters in recurrent or unusual infections.
A lymphocyte-predominant rise points towards a viral process, whereas a neutrophil-predominant rise suggests a bacterial one — a distinction only visible in the full differential.
A persistent, unexplained lymphocytosis in an adult is one of the standard triggers for haematological assessment.
Corticosteroids, chemotherapy and some immune therapies lower lymphocytes, and the count is used to track that effect over time.
Reasons your doctor may request the Absolute Lymphocyte Count test
Your doctor may order this test for any of the reasons below. Some are routine checks, others follow specific symptoms or an earlier result.
Infections & immune symptoms
Recurrent, prolonged or unusually severe infections.
Investigation of a suspected immune deficiency.
Nodes, spleen & abnormal counts
An abnormal white cell differential found on a routine full blood count.
Enlarged lymph nodes, an enlarged spleen, or unexplained night sweats and weight loss.
Treatment & disease follow-up
Monitoring during chemotherapy, corticosteroid treatment or immunosuppressive therapy.
Follow-up of a known lymphoproliferative disorder.
No fasting window — pick any slot that suits you, online or on WhatsApp.
A DHA-licensed nurse collects your sample at home or in the office — free home collection.
A physician-reviewed, easy-to-read report lands securely by WhatsApp and email.
Lymphocytes are immune cells that fight infection.
Ranges are a guide — your physician interprets your result alongside your symptoms and history.
What a higher result can point to
- Viral infections, including glandular fever, cytomegalovirus and viral hepatitis.
- Whooping cough, which characteristically raises lymphocytes.
- Chronic lymphocytic leukaemia and other lymphoproliferative disorders.
- Toxoplasmosis and some other non-viral infections.
- A transient shift after acute stress, injury or strenuous exercise.
- The period following removal of the spleen.
What a lower result can point to
- Corticosteroid treatment, which redistributes and depletes circulating lymphocytes.
- Chemotherapy, radiotherapy and immunosuppressive drugs.
- HIV infection, and some other viral illnesses during their acute phase.
- Severe acute illness, sepsis or major surgery.
- Autoimmune disease, particularly systemic lupus erythematosus.
- Bone marrow failure, or an inherited immune deficiency.
These are possibilities, not diagnoses. A single value outside the reference range is interpreted alongside your symptoms, history and other tests — your doctor decides what it means for you.
What this test cannot tell you
- Transient rises and falls after a recent illness are very common and usually mean nothing on their own, so an isolated abnormal value is normally repeated once the illness has settled.
- The count says how many lymphocytes are present but nothing about which subsets they are; specialised testing is needed to separate T, B and natural killer cells.
- An ordinary total count does not exclude a specific immune deficiency affecting one lymphocyte subset.
- Recent corticosteroids or an acute illness can lower the count enough to hide an underlying abnormality.
Risks of the blood draw
- Mild bruising or brief soreness where the needle went in.
- Occasional lightheadedness, which settles after a few minutes of rest.
- Bleeding or infection at the site, which is rare with sterile single-use equipment.
- 1Lymphocytes comprise T cells, B cells and natural killer cells, and drive adaptive immunity.
- 2The count is part of a full blood count differential and is read alongside the other cell lines.
- 3A raised count most often reflects a viral infection and settles on its own.
- 4A sustained, unexplained rise in an adult warrants haematological assessment.
- 5Low counts are commonly caused by corticosteroids, chemotherapy or acute illness.
Frequently Asked Questions
Everything you need to know about the Absolute Lymphocyte Count test. Can't find what you're looking for?
Talk to our team→Viruses are handled largely by T cells and by antibody-producing B cells. The body expands these populations to clear the infection, and the expansion shows up as a higher count in the blood.
Not on its own. Many temporary causes lower it, including a recent illness or a course of steroids. Persistent low counts, especially with recurrent infections, are what prompt a fuller assessment.
The percentage describes the share of white cells that are lymphocytes and shifts whenever the other cell types change. The absolute count is the actual number, and is what clinical decisions are based on.
No. It counts cells but says nothing about what they recognise. Antibody testing against a specific organism is what shows evidence of past exposure or vaccination.
This test measures the total number of lymphocytes in your blood. Lymphocytes are immune cells critical for fighting infections. Abnormal counts may indicate viral infections, immune deficiencies, or blood disorders.
Helps assess immune function, investigate recurrent infections, and aid in diagnosing leukaemias, lymphomas, and immune deficiency states.
No, fasting is not required for the Lymphocyte White Cells test, so you can eat and drink normally beforehand.
The Lymphocyte White Cells test uses a whole blood (edta) sample, collected quickly by our DHA-licensed phlebotomist with minimal discomfort.
Results for the Lymphocyte White Cells test are typically ready within 6 hours. You will receive a secure digital report, and your Smart Report highlights anything outside the normal range.
The Lymphocyte White Cells test is AED 70, which includes free home sample collection and a physician-reviewed report. You can also build a custom panel and pay only for the markers you choose.
Yes. A DHA-licensed phlebotomist can collect your sample at home or the office anywhere in Dubai at no extra cost, 7 days a week. See how it works.
It is commonly chosen by all ages. If you are not sure it is right for you, our care team is happy to advise.
Add the Lymphocyte White Cells test to your cart and complete the short booking wizard, choosing home collection or a lab visit. Guest checkout lets you book without creating an account.
Yes. It is processed at our EIAC-accredited laboratory (ISO 15189:2022) under DHA license 0046381 and verified by board-certified pathologists.
Every report includes reference ranges and plain-language notes. If you have questions, our care team can arrange a clinician review — just get in touch.
Absolutely. Add it to a curated health package or bundle it with any of our 160+ biomarkers, often from a single sample in one visit.