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Lab Medicine > CBC > Flashcards

CBC Flashcards

1
Q

reference range for RBC

  • males
  • females
A
  1. 73-5.49 x10^6 uL

4. 15-4.87 x10^6 uL

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2
Q

reference range for hemoglobin

A

male: 14.40- 16.60 gm/deciliter
female: 12.2-14.7 gm/deciliter

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3
Q

reference range for MCV (mean cellular volume)

A

78-98

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4
Q

reference range of hematocrit

A

men: 40-54%
women: 37-47%

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5
Q

reference range of WBC count

A

4500-11000

4.5-11

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6
Q

reference range for neutrophils

A

40-76%

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7
Q

reference range for basophils

A

0-1%

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8
Q

reference range for eosinophils

A

1-3%

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9
Q

reference range for monocytes

A

3-7%

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10
Q

reference range for lymphocytes

A

24-44%

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11
Q

reference range for platelet count

A

150,000-450,000 uL

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12
Q

reference range of MCH (mean cell hemoglobin

A

27-31

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13
Q

reference range of MCHC (mean cell hemoglobin concentration)

A

33-37

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14
Q

reference range of RDW (red cell distribution width)

A

11.5-14.5

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15
Q

MCV is the average volume or red blood cells

  • increase indicates what?
  • decrease indicates what?
A

increased MCV=macrocytosis=vitamin B12 or folic acid defiency
decreased MCV- microcytosis=iron defiency anemia

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16
Q

causes of elevated hemoglobin

A

loss of plasma volume
high altitude
smokers with COPD
polycythema vera

17
Q

causes of low hemoglobin

A

increased destruction of RBCs or decreased production
blood loss
pregnancy due to increase plasma volume

18
Q

elevation of neutrophils indicates what?

A

bacterial infections, inflammatory conditions

19
Q

elevated basophils indicates what?

A

CML, post-splenectomy, polycytothemia

20
Q

decreased basophils indicates what?

A

rheumatic fever, pregnancy, post-radiation therapy, steroid therapy

21
Q

elevation of eosinophils indicates what?

A

allergic reactions, parasitic infections, skin disease

22
Q

elevation of lymphocytes indicates what?

A

viral infections or lymphocytic leukemia

23
Q

elevated monocytes indicates what?

A

phagocytosis of bacterial infections

24
Q

causes of low WBC counts

A

viral infection
overwhelming bacterial infection
hypersplenism
bone marrow suppression

25
Q

causes of low platelets

A

enlarged spleen
platelet destruction from diseases like DIC and ITP
decreased platelet production–bone marrow suppression, viral infection, vitamin deficiency
alcoholism

26
Q

causes of elevated platelets

A

hemorrhage
splenectomy
inflammation

27
Q

What are the 3 indications for ordering a CBC?

A

investigate disease of blood or bone marrow
response to inflammation or infection
assess symptoms of fatigue, pallor, weakness, bleeding or bruising, dizziness, fever, weight loss

Lab Medicine (2 decks)

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