Blood Work - CBC
Blood Work - CBC
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What is included in a CBC?    

A standard CBC includes:    

Red blood cell (RBC) tests:    

  • Red blood cell (RBC) count is the total number of red blood cells in your blood.    
  • Hemoglobin measures the amount of the oxygen-carrying protein in the blood, which gives a good idea of the number of red blood cells in the blood.    
  • Hematocrit measures the percentage of your total blood volume that consists of red blood cells.    

Hemoglobin and Hematocrit are what is referred to as H&H.  This is what is looked at for testosterone therapy.  When these numbers go up the blood becomes thicker.  As the blood becomes thicker it puts more pressure on the blood vessels.  This is an important marker to look at.  If it gets high it is important to donate blood to decrease the pressure on the blood vessels.

  • Red blood cell indices provide information on the physical features of the RBCs:    
  • Mean corpuscular volume (MCV) is a measurement of how big the RBC is.    
  • Mean corpuscular hemoglobin (MCH) is the measurement of the average amount of hemoglobin inside the RBC.    
  • Mean corpuscular hemoglobin concentration (MCHC) is a measurement of the average concentration of hemoglobin in the RBC.    
  • Red cell distribution width (RDW) is the variation in the size of the RBC.    
  • The CBC may also include reticulocyte count, which shows the count/percentage of newly released young red blood cells in your blood sample.    

White blood cell (WBC) tests:    

  • White blood cell (WBC) count is a count of the total number of white blood cells.    
  • White blood cell differential  The WBC differential identifies the individual categories of WBC (neutrophils, lymphocytes, monocytes, eosinophils, and basophils). This can be listed as a total number or a fraction of the total WBC.    

Platelet tests:    

  • The platelet count is the number of platelets in the blood.    
  • Mean platelet volume (MPV) is a measurement of the size of platelets.    
  • Platelet distribution width (PDW) It reflects how uniform platelets are in size.    

  All blood tests give us clues as to the health of a person or a bodily system.  If there are any numbers that are out of normal ranges or you have any questions ALWAYS consult your primary care physician.  All systems in the body are interconnected so one test result often triggers the need for other tests your primary healthcare provider will know of additional places to look.    

What Other Tests Should I look For With This Test? 

A CMP is almost always ordered with a CBC, these two tests a CBC, CMP are a standard baseline in blood testing.   


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