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Saturday, October 3, 2020

Erythrocyte studies: Haemoglobin and hematocrit, Serum Iron, RBC


A. Erythrocyte sedimentation rate  

 1. Description- Rate at which erythrocytes settle out of anticoagulated blood in 1  hour

    A nonspecific test used to detect illnesses associated with acute and chronic infection, inflammation, advanced neoplasm, and tissue necrosis or infraction
2. Value : 0 to 30 mm/hr, depending on the age of the client  
3. Nursing consideration: Fasting is not necessary, but a fatty meal may cause plasma alterations. 

B. Hemoglobin and hematocrit  


    • Haemoglobin is the main components of erythrocytes and serves as the vehicle for transporting oxygen and carbon dioxide 
    • Haemoglobin determinations are important in identifying anaemia. 
    • Hematocrit represent red blood cell mass and is an important measurement in the identification of anaemia or polycythemia
 C. Serum iron

      1. Description 
    • Iron is found predominantly in haemoglobin 
    • Iron acts as a carrier of oxygen from the lungs to the tissue and indirectly aids in the rectum of carbon dioxide to the lungs.
    • Iron aids in diagnosing anaemias and hemolytic disorders 
       2. Normal values 
    • Male adult: 65 to 175 mcg/dl
    • Female adult 50 to 170 mcg/dl
D. Red blood cell (RBC) count (erythrocytes 

       1. Description 
    • Red blood cells function on haemoglobin transport, which results in delivery of oxygen to the body tissues 
    • Red blood cells are formed by red bone marrow, have a life span of 120 days, and are removed from the blood via the liver,  spleen, and bone marrow 
    • The red blood cell count aids in diagnosing anaemias and blood dyscrasias
    • The red blood cell count elevates the ability of the body to produce red blood cells in sufficient numbers. 
       2. Values 
    • Female adult: 4 to 5.5 million cells/ul
    • Male adult: 4.5 to 6.2 million cells/ul
           Normal adult blood components 
    Blood components             Normal value


           Male adult                           14-16.5 g/dL

           Female adult                       12 - 15 g/dL


           Male adult                          42% - 52%

           Female adult                      35% - 47%


           Male adult                          65 - 175mcg/dL

           Female adult                      50 - 170 mcg/dL

     Red blood cells

           Male adult                         4.5 - 6.2 million/uL

           Female adult                     4.0 - 5.5million /uL


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