Hematology: Hematocrit and RBC Indices

These flashcards cover key concepts related to hematocrit, RBC measurements, and their clinical implications.

What does the hematocrit blood test measure?

The percentage of red blood cells (RBCs) in a given unit of blood.

How is hematocrit measured in the lab?

It is measured by spinning blood in a centrifuge for approximately 15 minutes.

What should the normal hematocrit level be in males?

40 to 50 percent.

What should the normal hematocrit level be in females?

35 to 45 percent.

What do the RBC indices indicate?

They indicate the size, shape, and hemoglobin content of red blood cells.

What does MCV stand for and what does it measure?

Mean corpuscular volume; it measures the average size of red blood cells.

What does MCH stand for and what does it measure?

Mean corpuscular hemoglobin; it measures the average amount of hemoglobin in a red blood cell.

What does MCHC stand for and what does it measure?

Mean corpuscular hemoglobin concentration; it measures the amount of hemoglobin relative to the cell.

When MCV, MCH, and MCHC are decreased, what condition is likely?

Iron deficiency anemia is likely.

When MCV, MCH, and MCHC are increased, what deficiency is likely?

Vitamin B-12 or folic acid deficiency is likely.