PAGE 8-9 Flashcards
Hematology and Coagulation studies
This section deals with the enumeration of
cells in the blood and other body fluids
(e.g., CSF, pleural fluid, etc.)
Hematology and Coagulation studies
the most common body fluid analyzed in
this section
WHOLE BLOOD
focus on blood testing
for the determination of various
coagulation factors
Coagulation
Uses collection tubes lavender
ethylene diamine tetra acetic acid (EDTA)
Uses collection tubes lavender
● ethylenediaminetetraacetic acid (EDTA)
which inverted….
8 times
The liquid portion of the blood is
Plasma
PLASMA if
it is obtained from a sample that has been
anticoagulated. it contains…?
protein fibrinogen
If the sample is allowed to clot, the liquid portion is..?
Serum
COMMON LABORATORY TEST
PERFORMED IN HEMATOLOGY
COMPLETE BLOOD COUNT
COAGULATION SECTION
Is the most common type
of test performed in the
Hematology section
CBC
Screening test to assess
patients conditions such
as INFECTIONS and
MALIGNANCY.
CBC
Determines the percentage of
the different types of WBC and
evaluates RBC and platelet morphology
Differential
Determines the volume of
RBC packed by
CENTRIFUGATION
Hematocrit
Determines the
OXYGEN-carrying capacity of
RBC
Hemoglobin
Determines the amount of
hemoglobin
Mean
corpuscular
hemoglobin
(MCH) pg
Determines the weight of
hemoglobin in RBC and
compares it with the size of the
cell
Mean
corpuscular
hemoglobin
Concentration
(MCHC) %
Determines the size of RBC
Mean
corpuscular
volume (MCV)
fl
Determines the number of
platelets in circulating blood
Platelet count
Determines the number of
WBC in circulating blood
White blood
cell count
Determines the number of
RBC in circulating blood
Red blood cell
count
Calculation to determine the
differences in the size of RBC
Red blood cell
distribution
width
Determines the rate of RBC
sedimentation
Erythrocyte
Sedimentation
Rate
Sudden Increase of:
Neutrophils
bacterial infection
Determines the number and
type of body fluids such as
blood, semen, saliva and urine
Body fluid
analysis
Evaluates bone marrow production of RBC
Reticulocyte count
Determines the number and
type of cells in bone marrow
Bone marrow
Sudden Increase of:
Monocytes
viral infection chronic inflammation
Sudden Increase of:
Lymphocytes
viral infection
Sudden Increase of:
Basophil
allergy
Sudden Increase of:
Eosinophils
allergy and parasitic infection
Evaluates the intrinsic system of coagulation
cascade and monitors heparin therapy
Activated Partial Thromboplastin Time (APTT)
Plasma from a sample drawing in tube with light blue stopper that contains the anticoagulant sodium citrate
Coagulation
Section
Determines the volume of
RBC packed by
CENTRIFUGATION
Antithrombin III
Evaluate the function of
platelets
Bleeding time
Measures abnormal blood
clotting and fibrinolysis
D-dimer
Detect factor deficiencies that
prolong coagulation
Factor Assays
Test for increased fibrinolysis
Fibrin
degradation
products
Determines the amount of
fibrinogen in plasma
Fibrinogen
Evaluates the function of
platelets
Platelet
aggregation
Evaluates the extrinsic
system of coagulation
cascade and monitors
Coumadin therapy
Prothrombin
time and
international
normalized ratio
Determines if adequate
fibrinogen is present for normal coagulation
Thrombin time
