CBC Test Explained: Procedure, Parameters & Uses
                     CBC Test Explained: Procedure, Parameters & Uses
A complete blood count test is performed to monitor or detect your health condition. 
Recommended by healthcare providers, it provides detailed information about how 
your medical conditions and medications affect your body and immune system.
For this test, a phlebotomist will take a blood sample and send it to the diagnostic lab, 
where  the  red  blood  cells,   haemoglobin,  white  blood  cells,  and  platelets  are 
examined.  In  addition,  the  size  of  your  blood  cells  will  be  measured.   Let  us 
understand this test in detail, along with the CBC test price.
Why do you need this test?   
This test is recommended by healthcare professionals in cases such as:
• To  monitor  complex  health  conditions  such  as  cancer  or  chronic  kidney 
disease.
• To keep track of your health while you are pregnant.
• To  check  on  how  effectively  the  treatment  is  working  or  how  certain 
medications are affecting your body.
• To determine  the  underlying  causes  of  symptoms  like  fever,  night  sweats, 
unexpected weight loss, fatigue, bleeding, or bruising.
• As a part of your routine health checkup.
What does this test check for? 
The CBC test can help your healthcare provider understand if you have:
• Anemia ( low red blood cells or haemoglobin)
• Leukocytosis ( high white blood count)
• Leukopenia (low white blood count)
• Thromboocytosis (high platelet count)
• Thrombocytopenia (low platelet count)
• Leukopenia ( low white blood count)
How does the test work?    
During the CBC blood test, the red blood cells, white blood cells and platelets will be 
counted and the size will be examined, such as:
Red blood cell counts:
• RBCs: These are the number of red blood cells in a specific amount of your 
blood.
• Haemoglobin: Amount of haemoglobin in your blood.
• Hematocrit: The percentage of your blood that is made up of red blood cells.
• The other insights will be examined, including:
• Mean corpuscular volume (MCV): Average size of your red blood cells.
• MCH: This is exactly the average weight of haemoglobin in each of your red 
blood cells.
• MCHC: This is calculated as the average concentration of the haemoglobin in 
a certain amount of blood.
• Red cell distribution width: It checks the difference in red blood cell size. 
Platelet count
• Total number of platelets in your blood sample.
• MPV: It is your average platelet size
White blood cells
• White blood count: Simply a count of all types of white blood cells.
• Neutrophils: These fight bacteria and fungal infections.
• Monocytes: White blood cells that clean up debris during an infection.
• Lymphocytes: A type of white blood cell that fights viral infections.
• Eosinophils: These help fight parasitic infections and cause further allergic 
reactions. 
Preparations
This test doesn't require any special preparation, and is quick and easy to perform too. 
You do not need to fast overnight for a CBC test. However, make sure you follow all 
the given instructions shared by your healthcare provider and avoid drinking any 
sugary drinks, smoking or consuming alcohol.
CBC test price 
If your query is to find the CBC test cost near me, the price varies from location to 
location,  diagnostic  centres,  technology  used  and  the  expertise  of  healthcare 
professionals.
What to expect? 
Your healthcare provider may recommend a CBC as part of a routine checkup or to 
investigate symptoms such as fatigue, fever, unusual bleeding, or frequent infections. 
Understanding your CBC results can help your doctor take the necessary step for the 
prevention.
FAQs  
1. Is fasting required for a CBC test?
No, you generally do not need to fast before a CBC test.  Though make sure you 
follow the instructions given by your doctor. 
2. What does a CBC test detect?
A CBC can help identify conditions such as anemia, infections, and platelet-related 
problems. 
3. How is a CBC test performed?
An expert phlebotomist collects a small blood sample from a vein in your arm and 
then the sample will be sent to a diagnostic laboratory for analysis. 
4. Why is a CBC test recommended?
It may be recommended during routine checkups or to investigate symptoms such as 
fatigue, fever, or unusual bleeding.
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