A method for use with a blood sample, the method comprising: measuring hemoglobin concentration within at least a portion of the blood sample, by performing a first measurement on a first portion of the blood sample; measuring mean corpuscular hemoglobin in the blood sample, by performing a second measurement on a second portion of the blood sample, the second portion being diluted with respect to the first portion; and determining a parameter of the blood sample, based on a relationship between the concentration of hemoglobin and the mean corpuscular hemoglobin, wherein determining the parameter of the blood sample, comprises: determining a red blood cell count within the sample, by dividing the hemoglobin concentration by the mean corpuscular hemoglobin; and determining counts of one or more components within the sample, based on the red blood cell count within the sample, wherein determining the counts of one or more components within the sample, comprises: determining a ratio between the red blood cell count and the counts of the one or more components within a portion of the sample, by analyzing a microscopic image of the portion of the sample, and determining the count of the one or more components based on the red blood cell count within the sample and the ratio between the red blood cell count and the counts of the one or more components within the portion of the sample. measuring hemoglobin concentration within at least a portion of the blood sample, by performing a first measurement on a first portion of the blood sample; measuring mean corpuscular hemoglobin in the blood sample, by performing a second measurement on a second portion of the blood sample, the second portion being diluted with respect to the first portion; and determining a parameter of the blood sample, based on a relationship between the concentration of hemoglobin and the mean corpuscular hemoglobin, wherein determining the parameter of the blood sample, comprises: determining a red blood cell count within the sample, by dividing the hemoglobin concentration by the mean corpuscular hemoglobin; and determining counts of one or more components within the sample, based on the red blood cell count within the sample, wherein determining the counts of one or more components within the sample, comprises: determining a ratio between the red blood cell count and the counts of the one or more components within a portion of the sample, by analyzing a microscopic image of the portion of the sample, and determining the count of the one or more components based on the red blood cell count within the sample and the ratio between the red blood cell count and the counts of the one or more components within the portion of the sample. determining a red blood cell count within the sample, by dividing the hemoglobin concentration by the mean corpuscular hemoglobin; and determining counts of one or more components within the sample, based on the red blood cell count within the sample, wherein determining the counts of one or more components within the sample, comprises: determining a ratio between the red blood cell count and the counts of the one or more components within a portion of the sample, by analyzing a microscopic image of the portion of the sample, and determining the count of the one or more components based on the red blood cell count within the sample and the ratio between the red blood cell count and the counts of the one or more components within the portion of the sample. determining a ratio between the red blood cell count and the counts of the one or more components within a portion of the sample, by analyzing a microscopic image of the portion of the sample, and determining the count of the one or more components based on the red blood cell count within the sample and the ratio between the red blood cell count and the counts of the one or more components within the portion of the sample.