A complete blood
count will normally include:
Total white blood
cells — All the white cell types are given as a percentage and as an
absolute number per liter.
Total red blood
cells — The number of red cells is given as an absolute number per liter.
(Iron deficiency Anemia shows up as a Low RBC count.)
Hemoglobin – The
amount of hemoglobin in the blood, expressed in grams per deciliter. (A low
level of Hemoglobin is a sign of anemia.)
packed cell volume (PCV) – This is the fraction of whole blood volume that
consists of red blood cells.
volume (MCV) – the average volume of the red cells, measured
in femtolitres. Anemia is classified
as microcytic or macrocytic if the MCV value is above or
below the expected normal range; anemias are classified as normocytic if the
MCV is within the expected range. Other conditions that can affect MCV
include thalassemia, reticulocytosis, alcoholism, chemotherapy, Vitamin
B12 deficiency, and/or Folic acid deficiency.
hemoglobin (MCH) – the average amount of hemoglobin per red blood cell,
hemoglobin concentration (MCHC) – the average concentration of hemoglobin
in the cells.
Red blood cell
distribution width (RDW) – the variation in cellular volume of the RBC
A complete blood count with
differential/platelet will also include:
Neutrophil granulocytes — May
indicate bacterial infection. Less mature neutrophils — those
that have recently been released from the bone marrow into the
bloodstream — are known as "bands" or "stabs". Stab is
a German term for rod.
Lymphocytes — Higher with some viral infections such
as glandular fever
Monocytes — May be raised in bacterial infection, tuberculosis,
malaria, Rocky Mountain spotted fever, monocytic leukemia, chronic ulcerative
colitis and regional enteritis
Eosinophil granulocytes — Increased
in parasitic infections, asthma, or allergic reaction.
Basophil granulocytes — May be increased in bone marrow
related conditions such as leukemia or lymphoma.