Lever
Lifestyle
- Regular moderate exercise
- Adequate sleep
- Stress management
Blutwerte · Marker
Leukozyten
White Blood Cells · WBC · Weiße Blutkörperchen
BlutbildZeitabhängig
- Einheit:
- x10^9/L
- Abbreviation
- WBC
The WBC test quantifies the number of white blood cells in a given volume of blood, reflecting immune system activity.
Reference Ranges
Reference
4–11x10^9/L
4
4.5
10
11
LowNormalHigh
Reference
Optimal
Unit · x10^9/LReference ranges may vary slightly based on laboratory standards and individual factors such as age and sex.
Overview
Übersicht
White blood cells (WBC), also known as leukocytes, are a critical component of the immune system, responsible for defending the body against infections and foreign invaders. They are produced in the bone marrow and circulate throughout the bloodstream and lymphatic system. WBCs are categorized into various types, including neutrophils, lymphocytes, monocytes, eosinophils, and basophils, each serving distinct roles in immune response. Clinically, the WBC count is a vital marker for diagnosing and monitoring infections, inflammatory diseases, and hematological disorders. Elevated WBC counts can indicate acute infections, inflammation, stress, or more severe conditions like leukemia. Conversely, low WBC counts may suggest bone marrow suppression, autoimmune conditions, or the effects of certain medications. For athletes and biohackers, WBC levels can reflect the body's response to physical stress, such as intense exercise, which can temporarily elevate WBC counts. Monitoring these levels can provide insights into recovery and immune function. However, WBC counts can be influenced by various factors, including time of day, recent physical activity, and stress levels. Therefore, consistent testing conditions are recommended to ensure accurate interpretation.
Klinische Bedeutung
Elevated WBC counts may indicate infections, inflammation, stress, or hematological disorders. Reduced WBC counts can suggest bone marrow suppression, autoimmune diseases, or medication effects.
Dynamics
Trend Interpretation
Rising Values
Progressively rising WBC counts may suggest worsening infection or inflammation; re-test in 1-2 weeks if clinically indicated.
Falling Values
Falling WBC counts may indicate recovery from infection or potential bone marrow suppression.
Re-test Interval
4 weeks if outside optimal range
Etiology
Causes — High & Low
Cause
Elevated Levels
- Acute infections
- Inflammation
- Stress
- Leukemia
- Tissue damage
Cause
Low Levels
- Bone marrow suppression
- Autoimmune diseases
- Viral infections
- Chemotherapy
- Radiation therapy
Protocol
How to Optimize
Lever
Nutrition
- Balanced diet rich in fruits and vegetables
- Adequate protein intake
Lever
Supplementation
- Vitamin C
- Zinc
- Echinacea
- Probiotics
Note:
Consult a healthcare provider before making significant lifestyle or dietary changes, especially if underlying health conditions are present.
Testing Guidelines
✓Fasting Not Required
🕐Time-Sensitive
WBC counts can vary throughout the day; morning samples are often preferred for consistency.
Testing Frequency
Annually for healthy adults, more frequently if monitoring specific conditions.
Interfering Factors
- Recent intense exercise
- Stress
- Infections
Related Peptides & Hormones
Cortisol
hormoneMay affect
Open Research Questions
Current research suggests that reference ranges for white blood cell (WBC) counts may vary significantly based on factors such as sex and age, leading to potential misinterpretation of elevated levels. Researchers have not yet established optimal targets for WBC counts in specific clinical contexts, such as post-exercise recovery or in response to acute conditions like appendicitis. Unanswered clinical questions include the implications of WBC count variations in diagnosing and managing conditions across diverse populations.
64 Research Publications
1,101
Total Citations
47
Human/RCT
2.5
Avg. Influence
2025
Latest
Sort
Filter
01Top
#01
Reference range data base for serum chemistry and hematology values in laboratory animals.
AnimalInfluence11.0
374
02Top
#02
DNA methylation in white blood cells: association with risk factors in epidemiologic studies.
ReviewInfluence8.0
333
This research examined DNA methylation in white blood cells (WBC) as a potential biomarker for various health outcomes. Researchers noted associations between global WBC methylation and several cancers, highlighting the need for further studies to clarify these relationships.
03Top
#03
Clinical significance of white cell antibodies in febrile nonhemolytic transfusion reactions.
Human
95
04
#04
Digital image analysis of blood cells.
Unknown
43
This study focused on the importance of accurate blood cell counts in hematology laboratories. Researchers observed that while automated analyzers can provide reliable white blood cell counts, manual microscopy remains essential for detecting abnormal blood cell populations.
05
#05
Hypoxemia during hemodialysis.
Human
37
This study examined hypoxemia during hemodialysis in mechanically ventilated patients. Researchers found significant decreases in white blood cell (WBC) counts, suggesting that leuko-agglutination may contribute to hypoxemia during the procedure.
06
#06
Leukocytosis in rheumatoid arthritis.
HumanInfluence1.0
29
Researchers reviewed the prevalence of leukocytosis in rheumatoid arthritis (RA) patients. They found that 27% of patients had elevated white blood cell (WBC) counts, primarily due to increased neutrophils, and suggested that leukocytosis may indicate more active disease.
07
#07
Factors that Predict the Need for Subtotal Cholecystectomy.
HumanInfluence1.0
17
This study examined factors influencing the need for subtotal cholecystectomy in gallbladder surgery. Researchers found that older age, male sex, elevated white blood cell counts above 10.3, and a preoperative diagnosis of acute on chronic cholecystitis were associated with a higher likelihood of this surgical approach.
08
#08
Hepatic Steatosis Is Associated with High White Blood Cell and Platelet Counts.
Human
15
Researchers investigated the relationship between white blood cell (WBC) and platelet counts with hepatic steatosis in a large cohort. They found significant associations between higher WBC counts and the severity of hepatic steatosis, suggesting that WBC counts may be useful in identifying at-risk individuals.
09
#09
White Blood Cell and Platelet Counts Are Not Suitable as Biomarkers in the Differential Diagnostics of Dementia.
Human
14
This study evaluated the role of white blood cell (WBC) and platelet counts in diagnosing dementia. Researchers found no significant differences in WBC counts between demented and non-demented patients, suggesting these are not suitable biomarkers.
10
#10
Haematological and biochemical blood reference values for Canary Island camels (Camelus dromedarius), an endangered dromedary species.
AnimalInfluence2.0
12
This research aimed to develop reference values for blood parameters in Canary Island camels. Researchers reported a white blood cell (WBC) count range of 7.35 - 18.36 X103/µL, with variations based on age and sex.
Publication Trend
Research publications about Leukozyten over time
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