A: Economic self-interest refers to the financial theory that says people should make economic decisions based upon the best outcome for themselves. Self-interest is defined as a way of promoting activities and beliefs that serve to benefit the person making the decision over any other parties involved.
Updated June 20, 2016. A red blood cell (RBC) count is a type of blood test that can provide information about how many red blood cells are in a person's blood. Knowing why your doctor ordered an RBC count and what the results of your RBC count mean is important in understanding how it relates to your health. The RBC count test might sometimes be done as one piece of a more comprehensive blood test, which is called a complete blood cell (CBC) count.
1 Red blood cell (RBC) count: is a count of the actual number of red blood cells per volume of blood. 2  Both increases and decreases can point to abnormal conditions. 3  Haemoglobin measures the amount of oxygen-carrying protein in the blood. 4  Haematocrit measures the amount of space red blood cells take up in the blood. White blood cell (WBC) count is a count of the actual number of white blood cells per volume of blood. 2  Both increases and decreases can be significant. 3  White blood cell differential: looks at the types of white blood cells present.