What test is used to measure the concentration of hemoglobin in blood?

What test is used to measure the concentration of hemoglobin in blood?

• A. Complete blood count (CBC)
• B. Blood smear examination
• C. Hemoglobin electrophoresis
• D. Coagulation panel

Answer: (A)

Measuring the amount of hemoglobin in blood is a standard part of the complete blood count. The CBC reports the hemoglobin level (in g/dL) along with other red cell indices, and it’s determined by automated hematology analyzers using photometric methods (often cyanmethemoglobin historically). This is different from a blood smear, which looks at cell appearance; hemoglobin electrophoresis, which separates different forms of hemoglobin; or a coagulation panel, which assesses clotting factors. So the test used to measure hemoglobin concentration is the complete blood count.

Measuring the amount of hemoglobin in blood is a standard part of the complete blood count. The CBC reports the hemoglobin level (in g/dL) along with other red cell indices, and it’s determined by automated hematology analyzers using photometric methods (often cyanmethemoglobin historically). This is different from a blood smear, which looks at cell appearance; hemoglobin electrophoresis, which separates different forms of hemoglobin; or a coagulation panel, which assesses clotting factors. So the test used to measure hemoglobin concentration is the complete blood count.