Videoesophagogastroduodenoscopy - VEGDS Advanced HD complex (HD, WLE, iScan)
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White Blood Cell Count (WBC)
We remind you that independent interpretation of the results is unacceptable, the information provided below is for reference purposes only.
White blood cells (WBCs), also known as leukocytes, are a vital component of the body's immune system. They play a crucial role in defending the body against infections, diseases, and foreign invaders. WBCs are produced in the bone marrow and circulate throughout the body via the bloodstream.
Types and Functions of White Blood Cells
There are several types of white blood cells, each with specific functions in the immune response. The main types include:
| White Blood Cell Type | Primary Function |
|---|---|
| Neutrophils | First responders to bacterial infections and inflammation |
| Lymphocytes | Responsible for specific immune responses (B cells and T cells) |
| Monocytes | Phagocytic cells that engulf and destroy pathogens and debris |
| Eosinophils | Involved in allergic reactions and fighting parasitic infections |
| Basophils | Release histamine and other inflammatory mediators |
White blood cells constantly patrol the body, identifying and eliminating potential threats. They recognize and respond to various pathogens, such as bacteria, viruses, and fungi, as well as abnormal or damaged cells within the body.
Role of WBC in Diagnostics
White blood cell (WBC) count is a crucial diagnostic marker used to detect various health conditions, including infections, inflammatory disorders, and certain types of cancers. The normal range for WBC count can vary depending on age, gender, and other factors.
Indications for WBC Count Test
The WBC count test is ordered to evaluate the body's immune response and to detect potential infections or inflammatory conditions. It is often recommended in the following circumstances:
- Fever or signs of infection: An elevated WBC count may indicate the presence of an infection, such as a bacterial or viral illness.
- Monitoring chronic inflammatory conditions: Conditions like autoimmune disorders, inflammatory bowel diseases, or rheumatoid arthritis can cause changes in WBC count.
- Routine health check-ups: WBC count is frequently included in routine blood tests to assess overall health status.
- Pre-surgery evaluation: A WBC count test may be performed before surgical procedures to identify potential risk factors or underlying conditions.
- Monitoring treatment response: During treatment for conditions that affect the immune system or WBC count, regular monitoring is important to evaluate the effectiveness of the therapy.
Preparation for the Procedure
The procedure for giving blood to determine the hemoglobin level is relatively simple and does not require special preparation. However, there are a few recommendations to consider:
- Dietary regimen: In most cases, a blood test for hemoglobin can be done either fasting or after a meal. However, in some situations (e.g., during a comprehensive biochemical blood test), 8-12 hours of fasting before blood collection may be required.
- Avoiding physical exertion: Intense physical activity should be avoided on the day before the examination, as it may affect the test results.
- Abstaining from alcohol and smoking: It is recommended to refrain from consuming alcohol and smoking a day before the test, as these can influence the hemoglobin level and other blood parameters.
- Maintaining hydration: Adequate hydration is essential to facilitate the blood collection procedure. Insufficient fluid intake may make the venipuncture process more challenging.
- Informing the doctor about medications: Some medications can affect the hemoglobin level and other blood parameters. It is crucial to inform the doctor about all medications being taken.
Test Procedure
Blood collection for a hemoglobin test is usually performed from a vein located at the elbow crease. The procedure takes a few minutes and is carried out by a healthcare professional. After the venipuncture, minor bleeding or bruising may occur, which typically resolves on its own within a few days.
Sources:
https://www.niddk.nih.gov/health-information/diagnostic-tests/upper-gi-endoscopy
https://www.cms.gov/medicare-coverage-database/view/lcd.aspx?LCDId=35350
https://en.wikipedia.org/wiki/Esophagogastroduodenoscopy
IMPORTANT!
It is crucial to remember that the information provided in this section is not intended for self-diagnosis or self-treatment. If you experience pain or worsening of a condition, it is essential to consult a healthcare professional for diagnostic tests and proper treatment. Only a qualified specialist can make an accurate diagnosis and determine the appropriate treatment. To obtain the most accurate and consistent evaluation of test results, it is recommended to conduct tests at the same laboratory. This is because different laboratories may use various methods and units of measurement for similar tests.
