UAMS Hematology Anemias Exam 2026
Questions and Answers
Bone marrow in adults is found in what types of bones? - Correct answer-Flat
bones
What is the normal fat-to-cell ratio in an adult bone marrow? - Correct answer-
50:50
Which cell type forms more bone? - Correct answer-Osteoblast
Which cell type destroys bone? - Correct answer-Osteoclast
Which of the following cells has self-renewal?
Segmented neutrophil
Promyelocyte
Orthochromic normoblast
Pluripotential stem cell - Correct answer-Pluripotential stem cell
Where are bone marrow aspirates usually performed on adults? - Correct answer-
Posterior superior iliac crest
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,True or False: The spicules on a bone marrow slide are what we use to perform the
differential. - Correct answer-True
What is the normal range for megakaryocytes in the bone marrow? - Correct
answer-2-10/lpf
What is the normal bone marrow cellularity for children? - Correct answer-80%
What is the normal bone marrow cellularity for adults (ages 30-70)? - Correct
answer-50%
How do you calculate the normal bone marrow cellularity for people >70 years
old? - Correct answer-100% - Patient Age = cellularity +/- 10%
ex. Patient is 80.
100% - 80 = 20% +/- 10% (Range of 10-30%)
Can the bone marrow differential be performed from the biopsy? - Correct answer-
No
How many cells are counted on a bone marrow differential? - Correct answer-500-
1000 cells
What is the normal Myeloid:Erythroid (M:E) ratio? - Correct answer-3:1
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
, (There should be about 3 times more myeloid cells than erythroid cells)
True or False: Lymphocytes are not included in the M:E ratio. - Correct answer-
True
What is the average life span of myeloid cells? - Correct answer-10-14 days
What is the average life span of red blood cells? - Correct answer-120 days
What percent of the differential should be comprised of neutrophilic myelocytes,
metamyelocytes, bands, and segmented neutrophils? - Correct answer-50%
True or False: Lymphocytes, monocytes, and plasma cells are not counted in the
differential. - Correct answer-False. All cell types are included in the differential.
What would the M:E ratio be with erythroid hyperplasia? - Correct answer-1:1
More RBC precursors present
What would the M:E ratio be with myeloid hyperplasia? - Correct answer->5:1
More myeloid precursors present
What would the M:E ratio be with erythroid hypoplasia? - Correct answer->5:1
Less RBC precursors are present
What would the M:E ratio be with myeloid hypoplasia? - Correct answer-1:1
Less myeloid precursors present
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
Questions and Answers
Bone marrow in adults is found in what types of bones? - Correct answer-Flat
bones
What is the normal fat-to-cell ratio in an adult bone marrow? - Correct answer-
50:50
Which cell type forms more bone? - Correct answer-Osteoblast
Which cell type destroys bone? - Correct answer-Osteoclast
Which of the following cells has self-renewal?
Segmented neutrophil
Promyelocyte
Orthochromic normoblast
Pluripotential stem cell - Correct answer-Pluripotential stem cell
Where are bone marrow aspirates usually performed on adults? - Correct answer-
Posterior superior iliac crest
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,True or False: The spicules on a bone marrow slide are what we use to perform the
differential. - Correct answer-True
What is the normal range for megakaryocytes in the bone marrow? - Correct
answer-2-10/lpf
What is the normal bone marrow cellularity for children? - Correct answer-80%
What is the normal bone marrow cellularity for adults (ages 30-70)? - Correct
answer-50%
How do you calculate the normal bone marrow cellularity for people >70 years
old? - Correct answer-100% - Patient Age = cellularity +/- 10%
ex. Patient is 80.
100% - 80 = 20% +/- 10% (Range of 10-30%)
Can the bone marrow differential be performed from the biopsy? - Correct answer-
No
How many cells are counted on a bone marrow differential? - Correct answer-500-
1000 cells
What is the normal Myeloid:Erythroid (M:E) ratio? - Correct answer-3:1
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
, (There should be about 3 times more myeloid cells than erythroid cells)
True or False: Lymphocytes are not included in the M:E ratio. - Correct answer-
True
What is the average life span of myeloid cells? - Correct answer-10-14 days
What is the average life span of red blood cells? - Correct answer-120 days
What percent of the differential should be comprised of neutrophilic myelocytes,
metamyelocytes, bands, and segmented neutrophils? - Correct answer-50%
True or False: Lymphocytes, monocytes, and plasma cells are not counted in the
differential. - Correct answer-False. All cell types are included in the differential.
What would the M:E ratio be with erythroid hyperplasia? - Correct answer-1:1
More RBC precursors present
What would the M:E ratio be with myeloid hyperplasia? - Correct answer->5:1
More myeloid precursors present
What would the M:E ratio be with erythroid hypoplasia? - Correct answer->5:1
Less RBC precursors are present
What would the M:E ratio be with myeloid hypoplasia? - Correct answer-1:1
Less myeloid precursors present
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
