H&H stands for which combination?

• A. Hemoglobin and Hematocrit
• B. Hematocrit and Hemoglobin
• C. Hemoglobin and Hormone
• D. Hematocrit and ESR

Answer: (A)

H&H refers to two fundamental CBC measurements: hemoglobin and hematocrit. Hemoglobin is the oxygen-carrying protein in red blood cells, usually given in g/dL, while hematocrit is the percentage of blood volume made up by red blood cells. Together, they provide a quick, complementary view of red blood cell status: if one is low, the other often is too, which helps assess and gauge the severity of anemia and overall oxygen-carrying capacity. The other options mix hematocrit with something not part of this shorthand—either a hormone or ESR—so they don’t fit the common H&H pairing.