NCCAOM Biomedicine / Lab Verified Multiple Choice and Conceptual Actual
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Measures total white blood cell count to
WBC Purpose
assess immune function
High WBC levels, Indicates infection, in-
Leukocytosis
flammation, leukemia
Low WBC levels, Suggests bone marrow
Leukopenia suppression, autoimmune disease, or vi-
ral infection
Measures red blood cell count to assess
RBC Purpose
oxygen-carrying capacity
Indicates polycythemia vera, dehydra-
RBC High
tion, or lung disease
Indicates anemia, blood loss, or bone
RBC Low
marrow suppression
Measures hemoglobin concentration in
Hemoglobin (Hgb) Purpose
blood
Hemoglobin High Suggests polycythemia or dehydration
Hemoglobin Low Suggests anemia or blood loss
Measures percentage of red blood cells
Hematocrit (Hct) Purpose
in blood
Hematocrit High Suggests dehydration or polycythemia
Hematocrit Low Suggests anemia or blood loss
MCV Purpose Measures average size of RBCs
Indicates macrocytic anemia (e.g., B12
MCV High
or folate deficiency)
Indicates microcytic anemia (e.g., iron
MCV Low
deficiency)
Measures average hemoglobin content
MCH Purpose
in RBCs
MCH High Suggests macrocytic anemia
MCH Low Suggests microcytic anemia
Measures hemoglobin concentration per
MCHC Purpose
RBC
, NCCAOM Biomedicine / Lab Verified Multiple Choice and Conceptual Actual
Emended Exam Questions With Reviewed 100% Correct Detailed Answers
Guaranteed Pass!!Current Update
MCHC High May indicate spherocytosis
MCHC Low Suggests hypochromic anemia
RDW Purpose Measures variation in RBC size
Indicates mixed anemia or early nutri-
RDW High
tional deficiency
RDW Low Typically not clinically significant
Platelet Count Purpose Assesses clotting ability
Suggests inflammation, myeloprolifera-
Platelet High
tive disorders
Indicates thrombocytopenia, bone mar-
Platelet Low row suppression, or autoimmune dis-
ease
Increased levels of neutrophils, indicates
Neutrophilia acute infections, inflammation, or smok-
ing
Decreased levels of neutrophils, indi-
cates bone marrow damage, nutritional
Neutropenia
deficiencies, autoimmune disorders, or
immunodeficiency
Increased lymphocytes, indicates vi-
Lymphocytosis ral infections, chronic inflammation, or
leukemia
Decreased lymphocytes, indicates im-
Lymphocytopenia munodeficiency, corticosteroid use, or
severe infection
Increased monocytes, indicates chron-
Monocytosis ic infection, inflammation, or recovery
phase of infection
Decreased monocytes, rare, may occur
Monocytopenia
in aplastic anemia or hairy cell leukemia
Increased eosinophils, indicates allergic
Eosinophilia reactions, parasitic infections, or autoim-
mune disease
Eosinopenia
Emended Exam Questions With Reviewed 100% Correct Detailed Answers
Guaranteed Pass!!Current Update
Measures total white blood cell count to
WBC Purpose
assess immune function
High WBC levels, Indicates infection, in-
Leukocytosis
flammation, leukemia
Low WBC levels, Suggests bone marrow
Leukopenia suppression, autoimmune disease, or vi-
ral infection
Measures red blood cell count to assess
RBC Purpose
oxygen-carrying capacity
Indicates polycythemia vera, dehydra-
RBC High
tion, or lung disease
Indicates anemia, blood loss, or bone
RBC Low
marrow suppression
Measures hemoglobin concentration in
Hemoglobin (Hgb) Purpose
blood
Hemoglobin High Suggests polycythemia or dehydration
Hemoglobin Low Suggests anemia or blood loss
Measures percentage of red blood cells
Hematocrit (Hct) Purpose
in blood
Hematocrit High Suggests dehydration or polycythemia
Hematocrit Low Suggests anemia or blood loss
MCV Purpose Measures average size of RBCs
Indicates macrocytic anemia (e.g., B12
MCV High
or folate deficiency)
Indicates microcytic anemia (e.g., iron
MCV Low
deficiency)
Measures average hemoglobin content
MCH Purpose
in RBCs
MCH High Suggests macrocytic anemia
MCH Low Suggests microcytic anemia
Measures hemoglobin concentration per
MCHC Purpose
RBC
, NCCAOM Biomedicine / Lab Verified Multiple Choice and Conceptual Actual
Emended Exam Questions With Reviewed 100% Correct Detailed Answers
Guaranteed Pass!!Current Update
MCHC High May indicate spherocytosis
MCHC Low Suggests hypochromic anemia
RDW Purpose Measures variation in RBC size
Indicates mixed anemia or early nutri-
RDW High
tional deficiency
RDW Low Typically not clinically significant
Platelet Count Purpose Assesses clotting ability
Suggests inflammation, myeloprolifera-
Platelet High
tive disorders
Indicates thrombocytopenia, bone mar-
Platelet Low row suppression, or autoimmune dis-
ease
Increased levels of neutrophils, indicates
Neutrophilia acute infections, inflammation, or smok-
ing
Decreased levels of neutrophils, indi-
cates bone marrow damage, nutritional
Neutropenia
deficiencies, autoimmune disorders, or
immunodeficiency
Increased lymphocytes, indicates vi-
Lymphocytosis ral infections, chronic inflammation, or
leukemia
Decreased lymphocytes, indicates im-
Lymphocytopenia munodeficiency, corticosteroid use, or
severe infection
Increased monocytes, indicates chron-
Monocytosis ic infection, inflammation, or recovery
phase of infection
Decreased monocytes, rare, may occur
Monocytopenia
in aplastic anemia or hairy cell leukemia
Increased eosinophils, indicates allergic
Eosinophilia reactions, parasitic infections, or autoim-
mune disease
Eosinopenia
