Leukocyte Differential Count – what do your numbers mean?
Have you had your Leukocyte Differential Count measured and are unsure what the numbers mean? Here's a clear explanation of the normal range, what a high or low level might indicate, and when it makes sense to get tested.
What is the normal range for Leukocyte Differential Count?
What is the normal range for Leukocyte Differential Count?
A leukocyte differential count measures the distribution of different types of white blood cells in the blood. The normal ranges are: Neutrophils: 2.00 - 7.00 billion/L, Lymphocytes: 1.30 - 3.50 billion/L, Monocytes: 0.20 - 0.70 billion/L, Eosinophils: < 0.50 billion/L, and Basophils: < 0.10 billion/L. These values can vary depending on the laboratory's methods and the patient's age, gender, and physiological state. Pregnant individuals, for example, may have higher values. Being close to the limit values can indicate incipient illness or temporary physiological changes.
What does a low level mean?
A low level of leukocytes, known as leukopenia, can be caused by bone marrow depression, vitamin B12 or folate deficiency, chemotherapy, certain viral infections, or autoimmune diseases. Symptoms may include frequent infections, fatigue, and fever. Particularly vulnerable groups include patients undergoing chemotherapy and individuals with immunodeficiencies. With low values below 1.0 billion/L, the risk of serious infections increases significantly, and it is important to seek medical attention for further investigation and treatment.
What does a high level mean?
A high level of leukocytes, called leukocytosis, can indicate infections, inflammation, stress, cancer, or the use of certain medications such as corticosteroids. Symptoms may include fever, fatigue, and swollen lymph nodes. With very high values above 20 billion/L, further investigations should be carried out to rule out serious conditions such as leukemia. It is recommended to contact a doctor for a thorough assessment, especially if there are accompanying symptoms.
Get your Leukocyte Differential Count level tested
At Celto, you can order a blood test for Leukocyte Differential Count directly online – without a doctor's referral and without long waiting times. We have over 34 sample collection sites at public hospitals throughout Denmark, and your samples are analyzed in the same accredited laboratories used by the rest of the healthcare system. You will receive your results directly on sundhed.dk, just like all other blood tests from the public system.
How it works
When you order a blood test from Celto, you choose which markers you want to have tested – no doctor's referral necessary. After your purchase, you will receive an email with a link to our booking system, where you choose a time and place. The blood sample itself is taken by authorized healthcare personnel and typically only takes a few minutes.
Where you can get tested
Celto has over 34 sample collection sites at public hospitals and clinics throughout Denmark. You choose the location that suits you best from among our partners, and there are typically available appointments within a few days. Find your nearest sample collection site →
How to get your results
Your blood samples are analyzed in the same laboratories used by your own doctor and the rest of the healthcare system, with the exact same quality and the same tests. You will receive your results directly on sundhed.dk within a few working days, and Celto will also send an easy-to-understand review of your values so you know what the numbers mean.