• Source: Red blood cell indices

Red blood cell indices are blood tests that provide information about the hemoglobin content and size of red blood cells. Abnormal values indicate the presence of anemia and which type of anemia it is.




Mean corpuscular volume



Mean corpuscular volume (MCV) is the average volume of a red blood cell and is calculated by dividing the hematocrit (Hct) by the concentration of red blood cell count.






MCV


=



Hct


[


RBC


]





{\displaystyle {\textit {MCV}}={\frac {\textit {Hct}}{[{\textit {RBC}}]}}}


Normal range: 80–100 fL (femtoliter)




Mean corpuscular hemoglobin



Mean corpuscular hemoglobin (MCH) is the average amount of hemoglobin (Hb) per red blood cell and is calculated by dividing the hemoglobin by the red blood cell count.




M
C
H
=



H
b


R
B
C





{\displaystyle MCH={\frac {Hb}{RBC}}}


Normal range: 27-31 pg/cell




Mean corpuscular hemoglobin concentration



Mean corpuscular hemoglobin concentration (MCHC) is the average concentration of hemoglobin per unit volume of red blood cells and is calculated by dividing the hemoglobin by the hematocrit.




M
C
H
C
=



H
b


H
c
t





{\displaystyle MCHC={\frac {Hb}{Hct}}}


Normal range: 32-36 g/dL




Red blood cell distribution width



Red blood cell distribution width (RDW or RDW-CV or RCDW and RDW-SD) is a measure of the range of variation of red blood cell (RBC) volume, yielding clues about morphology.




Erythropoietic precursor indices



The reticulocyte production index (RPI) or corrected reticulocyte count (CRC) represents the true significance of the absolute reticulocyte count to provide some reflection of erythropoietic demand and supply. The immature reticulocyte fraction (IRF) goes a step further to cast more light on the same question.




Worked example






References

Kata Kunci Pencarian:

• Hitung darah lengkap
• Red blood cell indices
• Complete blood count
• Red blood cell distribution width
• Red blood cell
• Mean corpuscular hemoglobin
• Mean corpuscular hemoglobin concentration
• Hematocrit
• Red blood
• Mean corpuscular volume
• Alpha-thalassemia