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Description
Several artifacts can cause significant and potentially misleading alterations to measured RBC parameters: 1. Old samples cause RBCs to swell, thus increasing PCV and MCV and decreasing MCHC; 2. Lipemia causes a falsely high Hgb reading, and hence a falsely high MCHC; 3. Hemolysis causes PCV to decrease while Hgb remains unchanged, again leading to a falsely high MCHC; 4. Underfilling of the tube causes RBCs to shrink, causing PCV and MCV to decrease and MCHC to increase; 5. Autoagglutination causes a falsely low RBC count, and hence a falsely high MCV. Satyendra Dhar MD @DharSaty #Poikilocytosis #CabotRings #Acanthocytes #TearCells #Dacrocytes, #Teardrops #TargetCells #Codocytes #Stomatocytes #Spherocytes #SickleCells #Drepanocytes #Schistocytes #Pyknocytes #Elliptocytes #Ovalocytes #Echinocytes #BurrCells #Bite #Keratocyte #Blister #HelmetCells
Contributed by
Satyendra Dhar, MD
@DharSaty
Hospital Medicine Assistant Clinical Professor Images on this website are 'NOT' a substitute for clinical judgment or Medical Advice. Opinions on this website are our own and do not represent the opinions of any affiliated institutions. Please don’t use this website for medical advice but instead consult with your healthcare provider. The images listed are solely intended for educational & informational purposes 'ONLY', to allow topics in Medicine to be explained in a compact & easy to comprehend manner. Images/graphic materials may have been taken from published research articles & Google images/Scholar. Although images are curated, there is no way to guarantee a consistent standard of accuracy & quality across the library of images. 👉 Follow 'Medical Infographics' on 👉 https://www.DharSaty.com
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