2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!
Hematopoietic system Questions and
Answers | Latest Update
major component of RBC
✓ -:- B12, folic acid, and iron
life span is only about 120days
erythropoietin
✓ -:- made in the kidneys
blood loss equals
✓ -:- iron deficienchy
normal WBC count
✓ -:- about 4,000 - 10,000
leukocytes
✓ -:- average lifespan 4-5 days and 6-8hr after activation
made in bone marrow & lymphoid tissue
platelets
1|P a g e | G r a d e A + | 2 0 2 0 2 5
,2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!
✓ -:- problems cause bleeding, coagulation, & DIC
2/3 in circulation and the rest are on reserve in the spleen
live 6-10 days
give to stop bleeding or when low
normal platelet count
✓ -:- 150,000 - 450,000
normal hemoglobin
✓ -:- 11-17 don't need to know difference between M/F except that males are a
little higher than women
normal hematocrit
✓ -:- 38-49 - higher in men than women
normal red blood cell count
✓ -:- 4.2-5.14
reticulocyte
✓ -:- baby RBC
should expect increase after giving iron to ensure RBC's are being made
2|P a g e | G r a d e A + | 2 0 2 0 2 5
, 2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!
normal MCV
✓ -:- size of RBC
85-95(fl)
normal MCHC
✓ -:- 33-35g/dL
normal PTT
✓ -:- 25-39sec
normal PT
✓ -:- 10-13sec
normal INR
✓ -:- <2
on coumadin: 2-3
peripheral blood smear
3|P a g e | G r a d e A + | 2 0 2 0 2 5
Hematopoietic system Questions and
Answers | Latest Update
major component of RBC
✓ -:- B12, folic acid, and iron
life span is only about 120days
erythropoietin
✓ -:- made in the kidneys
blood loss equals
✓ -:- iron deficienchy
normal WBC count
✓ -:- about 4,000 - 10,000
leukocytes
✓ -:- average lifespan 4-5 days and 6-8hr after activation
made in bone marrow & lymphoid tissue
platelets
1|P a g e | G r a d e A + | 2 0 2 0 2 5
,2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!
✓ -:- problems cause bleeding, coagulation, & DIC
2/3 in circulation and the rest are on reserve in the spleen
live 6-10 days
give to stop bleeding or when low
normal platelet count
✓ -:- 150,000 - 450,000
normal hemoglobin
✓ -:- 11-17 don't need to know difference between M/F except that males are a
little higher than women
normal hematocrit
✓ -:- 38-49 - higher in men than women
normal red blood cell count
✓ -:- 4.2-5.14
reticulocyte
✓ -:- baby RBC
should expect increase after giving iron to ensure RBC's are being made
2|P a g e | G r a d e A + | 2 0 2 0 2 5
, 2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!
normal MCV
✓ -:- size of RBC
85-95(fl)
normal MCHC
✓ -:- 33-35g/dL
normal PTT
✓ -:- 25-39sec
normal PT
✓ -:- 10-13sec
normal INR
✓ -:- <2
on coumadin: 2-3
peripheral blood smear
3|P a g e | G r a d e A + | 2 0 2 0 2 5
