Hematology Flashcards
Scientific study of blood and its components
Hematology
Main components of blood
Red blood cells
White blood cells
Platelets
Plasma
Erythrocytes
RBC
Leukocytes
WBC
Thrombocytes
Platelets
where are RBC, WBC, and platelets produced?
bone marrow by stem cells
transports oxygen from the lungs to the diff parts of the body that carry carbon dioxide back to the lungs
Erythrocytes RBC
Consists of hemoglobin
RBC
low number of RBC
Anemia
high number of RBC
polycythemia
Defend the body against infection
Leukocytes WBC
also known as the mobile blood cells
leukocytes
Involved in allergic responses
Basophils
Most numerous
Protect the body from infection by killing and ingesting bacteria, fungi and foreign bodies
Neutrophils
Lymphocytes
T-cell
B-cell
Nk cell
recognizes foreign substances and processes them for removal
T-cell
produces antibodies
B-cell
kills cancer cells
NK cell
kill parasites
Activate allergic responses
Eosinophils
55% of a normal human’s blood volume
Platelets
removes the waste products of metabolism
Platelets
removes the waste products of metabolism
Plasma
clear yellow liquid in blood; a combination of water, sugar, fat, protein, and salt solution
plasma
The standard procedure of blood collection using lancets and needles of varying gauges
Phlebotomy
Types of phlebotomy
Skin puncture - capillaries
Venipuncture - veins
Arterial puncture - arteries
CBC consists of the measurement of
Hemoglobin
Hematocrit
RBC count
WBC and differential WBC Count
CBC consists of the measurement of
Hemoglobin
Hematocrit
RBC count
WBC and differential WBC Count
Platelet Estimate
Spinning a blood-filled capillary tube for five minutes using a micro hematocrit centrifuge
Spun-microhematocrit
use a ___ for a manual RBC count and platelet count
RBC pipette
aspirate the anticoagulated blood sampel to the
aspirate the anticoagulated blood sample to the ___________ for RBC and platelet count
0.5 mark and to the 1.0 mark
Use a _______ for manual WBC count
WBC pipette
aspirate the blood sample at the ___ mark and the diluting fluid to the ____mark
0.5 mark and 11 mark
By monitoring the pulses in the electric current, the ______ of fluid can be counted
the number of particles for a given volume of fluid
it is performed by scanning the stained blood smear first using the low power objective
The microscopic examination
____ WBCs must be counted in a tracking pattern
100 WBCs
Each WBC seen should be counted and identified as a
neutrophil