100% correctly verified Solutions Latest version 2025/2026
Given the following lab results, what is the calculated MCH?
RBC 3.01 x 10^12/L
HGB 9.4 g/dL
HCT 27.5% - correct answer 31.2pg ((HGB/RBC) x 10)
What is the calculation for MCH? - correct answer MCH = ((HGB/RBC) x 10)
Expressed in pg. Denotes HGB content in one cell. Normal 27-33pg.
What is the calculation for MCV? - correct answer MCV = ((HCT/RBC) x 10)
Mean corpuscular volume (MCV) is the average volume of red cells in a
specimen.The reference range for MCV is 80-96 fL/red cell in adult.
What is the calculation for MCHC? - correct answer MCHC = ((HGB/HCT%)
x 100)
Measure of the concentration of hemoglobin in a given volume of packed red
blood cells. Reference ranges are 32 to 36%.
What is the reference range for the mean corpuscular hemoglobin
concentration? - correct answer 32%-36%
Which CBC parameter is a numerical expression of anisocytosis? - correct
answer RDW
What is the abnormal variation in the size of erythrocytes known as? - correct
answer Anisocytosis
,Which determination is considered a reliable assessment of effective
erythropoiesis in the bone marrow? - correct answer Reticulocyte count
To calculate the reticulocyte production index, other than the reticulocyte
count (%), what other hematological parameter is needed? - correct answer
HCT
What are erythrocytes with a diameter of 9-12 microns referred to as? -
correct answer Macrocytes
What causes the red cell color of immature erythrocytes to appear
polychromatophilic? - correct answer Residual RNA
What is abnormal variation in the shape of erythrocytes known as? - correct
answer Poikilocytosis
What does the peripheral blood smear show in a patient with iron deficiency
anemia? - correct answer Microcytic, hypochromic cells with poikilocytosis
present
Which one of the following is a characteristic finding in iron deficiency
anemia? - correct answer Low ferritin, low iron, high TIBC, high transferrin
Which RBC shows a peripheral rim of hemoglobin with a dark staining central
area? - correct answer Leptocyte (also known as a Target cell)
Target cells are present in ALL of the following conditions: - correct answer
Thalassemia, liver disease, and postsplenectomy
, Target cells are present in all of the following conditions EXCEPT which one? -
correct answer Myelofibrosis
Basophilic stippling refers to which one of the following? - correct answer
Aggregated RNA in the RBC
Which RBC inclusion is described as a threadlike oval or figure-eight shaped?
- correct answer Cabot rings
Which of the following inclusions represents a remnant of nuclear DNA in an
RBC? - correct answer Howell-Jolly body
RNA remnants in RBCs are visualized by which supravital stain? - correct
answer New methylene blue
What are RBCs that contain iron-stained granules termed? - correct answer
Siderocytes
Chronic blood loss can lead to what type of anemia? - correct answer Iron
deficiency anemia
Increased iron in the mitochondria of normoblasts is characteristic of which
type of anemia? - correct answer Sideroblastic anemia
A peripheral blood smear from a patient with thalassemia would exhibit which
of the following? - correct answer Target cell, basophilic stippling, and
teardrop cells
What lab results are found in iron deficiency anemia but not in thalassemia? -
correct answer Low serum iron and high total iron binding capacity