The formula to calculate the Absolute Reticulocyte Count (ARC) is:
\[ \text{ARC} = \frac{\%R \times \%Ht}{\%Htnormal} \]
Where:
The Absolute Reticulocyte Count is the number of immature red blood cells (RBCs) in one liter of blood.
Reticulocytes define the percentage of reticulocytes in RBC (red blood cells).
Hematocrit is the volume percentage of red blood cells in the blood.
Normal Hematocrit is the hematocrit level generally found in men and women. It ranges between 40.7-50.3% for males and 36.1-44.3% for females.
Let's assume the following values:
Using the formula:
\[ \text{ARC} = \frac{\%R \times \%Ht}{\%Htnormal} \]
Evaluating:
\[ \text{ARC} = \frac{1.5 \times 48}{42} \]
The Absolute Reticulocyte Count is 1.7143 Cells/µL.
| Reticulocytes (%) | Hematocrit (%) | Normal Hematocrit (%) | Absolute Reticulocyte Count (Cells/µL) |
|---|---|---|---|
| 1 | 40 | 36 | 1.1111 |
| 1 | 40 | 38 | 1.0526 |
| 1 | 40 | 40 | 1.0000 |
| 1 | 40 | 42 | 0.9524 |
| 1 | 40 | 44 | 0.9091 |
| 1 | 42 | 36 | 1.1667 |
| 1 | 42 | 38 | 1.1053 |
| 1 | 42 | 40 | 1.0500 |
| 1 | 42 | 42 | 1.0000 |
| 1 | 42 | 44 | 0.9545 |
| 1 | 44 | 36 | 1.2222 |
| 1 | 44 | 38 | 1.1579 |
| 1 | 44 | 40 | 1.1000 |
| 1 | 44 | 42 | 1.0476 |
| 1 | 44 | 44 | 1.0000 |
| 1 | 46 | 36 | 1.2778 |
| 1 | 46 | 38 | 1.2105 |
| 1 | 46 | 40 | 1.1500 |
| 1 | 46 | 42 | 1.0952 |
| 1 | 46 | 44 | 1.0455 |
| 1 | 48 | 36 | 1.3333 |
| 1 | 48 | 38 | 1.2632 |
| 1 | 48 | 40 | 1.2000 |
| 1 | 48 | 42 | 1.1429 |
| 1 | 48 | 44 | 1.0909 |
| 1 | 50 | 36 | 1.3889 |
| 1 | 50 | 38 | 1.3158 |
| 1 | 50 | 40 | 1.2500 |
| 1 | 50 | 42 | 1.1905 |
| 1 | 50 | 44 | 1.1364 |
| 1.5 | 40 | 36 | 1.6667 |
| 1.5 | 40 | 38 | 1.5789 |
| 1.5 | 40 | 40 | 1.5000 |
| 1.5 | 40 | 42 | 1.4286 |
| 1.5 | 40 | 44 | 1.3636 |
| 1.5 | 42 | 36 | 1.7500 |
| 1.5 | 42 | 38 | 1.6579 |
| 1.5 | 42 | 40 | 1.5750 |
| 1.5 | 42 | 42 | 1.5000 |
| 1.5 | 42 | 44 | 1.4318 |
| 1.5 | 44 | 36 | 1.8333 |
| 1.5 | 44 | 38 | 1.7368 |
| 1.5 | 44 | 40 | 1.6500 |
| 1.5 | 44 | 42 | 1.5714 |
| 1.5 | 44 | 44 | 1.5000 |
| 1.5 | 46 | 36 | 1.9167 |
| 1.5 | 46 | 38 | 1.8158 |
| 1.5 | 46 | 40 | 1.7250 |
| 1.5 | 46 | 42 | 1.6429 |
| 1.5 | 46 | 44 | 1.5682 |
| 1.5 | 48 | 36 | 2.0000 |
| 1.5 | 48 | 38 | 1.8947 |
| 1.5 | 48 | 40 | 1.8000 |
| 1.5 | 48 | 42 | 1.7143 |
| 1.5 | 48 | 44 | 1.6364 |
| 1.5 | 50 | 36 | 2.0833 |
| 1.5 | 50 | 38 | 1.9737 |
| 1.5 | 50 | 40 | 1.8750 |
| 1.5 | 50 | 42 | 1.7857 |
| 1.5 | 50 | 44 | 1.7045 |
| 2 | 40 | 36 | 2.2222 |
| 2 | 40 | 38 | 2.1053 |
| 2 | 40 | 40 | 2.0000 |
| 2 | 40 | 42 | 1.9048 |
| 2 | 40 | 44 | 1.8182 |
| 2 | 42 | 36 | 2.3333 |
| 2 | 42 | 38 | 2.2105 |
| 2 | 42 | 40 | 2.1000 |
| 2 | 42 | 42 | 2.0000 |
| 2 | 42 | 44 | 1.9091 |
| 2 | 44 | 36 | 2.4444 |
| 2 | 44 | 38 | 2.3158 |
| 2 | 44 | 40 | 2.2000 |
| 2 | 44 | 42 | 2.0952 |
| 2 | 44 | 44 | 2.0000 |
| 2 | 46 | 36 | 2.5556 |
| 2 | 46 | 38 | 2.4211 |
| 2 | 46 | 40 | 2.3000 |
| 2 | 46 | 42 | 2.1905 |
| 2 | 46 | 44 | 2.0909 |
| 2 | 48 | 36 | 2.6667 |
| 2 | 48 | 38 | 2.5263 |
| 2 | 48 | 40 | 2.4000 |
| 2 | 48 | 42 | 2.2857 |
| 2 | 48 | 44 | 2.1818 |
| 2 | 50 | 36 | 2.7778 |
| 2 | 50 | 38 | 2.6316 |
| 2 | 50 | 40 | 2.5000 |
| 2 | 50 | 42 | 2.3810 |
| 2 | 50 | 44 | 2.2727 |
| 2.5 | 40 | 36 | 2.7778 |
| 2.5 | 40 | 38 | 2.6316 |
| 2.5 | 40 | 40 | 2.5000 |
| 2.5 | 40 | 42 | 2.3810 |
| 2.5 | 40 | 44 | 2.2727 |
| 2.5 | 42 | 36 | 2.9167 |
| 2.5 | 42 | 38 | 2.7632 |
| 2.5 | 42 | 40 | 2.6250 |
| 2.5 | 42 | 42 | 2.5000 |
| 2.5 | 42 | 44 | 2.3864 |
| 2.5 | 44 | 36 | 3.0556 |
| 2.5 | 44 | 38 | 2.8947 |
| 2.5 | 44 | 40 | 2.7500 |
| 2.5 | 44 | 42 | 2.6190 |
| 2.5 | 44 | 44 | 2.5000 |
| 2.5 | 46 | 36 | 3.1944 |
| 2.5 | 46 | 38 | 3.0263 |
| 2.5 | 46 | 40 | 2.8750 |
| 2.5 | 46 | 42 | 2.7381 |
| 2.5 | 46 | 44 | 2.6136 |
| 2.5 | 48 | 36 | 3.3333 |
| 2.5 | 48 | 38 | 3.1579 |
| 2.5 | 48 | 40 | 3.0000 |
| 2.5 | 48 | 42 | 2.8571 |
| 2.5 | 48 | 44 | 2.7273 |
| 2.5 | 50 | 36 | 3.4722 |
| 2.5 | 50 | 38 | 3.2895 |
| 2.5 | 50 | 40 | 3.1250 |
| 2.5 | 50 | 42 | 2.9762 |
| 2.5 | 50 | 44 | 2.8409 |
| 3 | 40 | 36 | 3.3333 |
| 3 | 40 | 38 | 3.1579 |
| 3 | 40 | 40 | 3.0000 |
| 3 | 40 | 42 | 2.8571 |
| 3 | 40 | 44 | 2.7273 |
| 3 | 42 | 36 | 3.5000 |
| 3 | 42 | 38 | 3.3158 |
| 3 | 42 | 40 | 3.1500 |
| 3 | 42 | 42 | 3.0000 |
| 3 | 42 | 44 | 2.8636 |
| 3 | 44 | 36 | 3.6667 |
| 3 | 44 | 38 | 3.4737 |
| 3 | 44 | 40 | 3.3000 |
| 3 | 44 | 42 | 3.1429 |
| 3 | 44 | 44 | 3.0000 |
| 3 | 46 | 36 | 3.8333 |
| 3 | 46 | 38 | 3.6316 |
| 3 | 46 | 40 | 3.4500 |
| 3 | 46 | 42 | 3.2857 |
| 3 | 46 | 44 | 3.1364 |
| 3 | 48 | 36 | 4.0000 |
| 3 | 48 | 38 | 3.7895 |
| 3 | 48 | 40 | 3.6000 |
| 3 | 48 | 42 | 3.4286 |
| 3 | 48 | 44 | 3.2727 |
| 3 | 50 | 36 | 4.1667 |
| 3 | 50 | 38 | 3.9474 |
| 3 | 50 | 40 | 3.7500 |
| 3 | 50 | 42 | 3.5714 |
| 3 | 50 | 44 | 3.4091 |