Final answer:
A Complete Blood Count (CBC) measures various components of blood such as red blood cells, white blood cells, and platelets, but not blood electrolytes like sodium or potassium. Blood electrolytes are measured in different tests specifically designed for them.
Step-by-step explanation:
A Complete Blood Count (CBC) is a comprehensive blood test that measures various components of the blood including the red blood cells (erythrocytes), white blood cells (leukocytes), platelets (thrombocytes), and various other blood properties. However, a CBC does not typically measure blood electrolytes. Blood electrolytes are minerals found in the blood, such as sodium, potassium, and chloride, that are critical for normal bodily functions like regulating heartbeat and muscle function. These electrolytes are measured in a different panel of tests known as blood electrolyte tests.
Components such as hemoglobin within red blood cells carry oxygen throughout the body. White blood cells are critical in the immune response, fighting against infection and foreign invaders. Platelets are responsible for blood clotting and wound healing. Therefore, the answer to the question is 'b. Blood Electrolytes', as they are not measured in a CBC.