Hematology Flashcards
1
Q
hematology
A
field of clinical pathology that deals with blood and blood-forming organs
2
Q
PCV/HCT
A
packed cell volume (hematocrit)
3
Q
hemoglobin
A
iron-containing protein that carries oxygen in the blood
4
Q
RDW (red cell distribution width)
A
measures variation in RBC size
5
Q
what is the proper volume of blood and angle for distribution for a blood smear?
A
volume: 3-4mm
angle: 30-45 degrees
6
Q
red blood cell
A
- increased surface area to volume ratio
- formed in the bone marrow
- no nucleus
- life span: 120 days
- bioconcave
7
Q
leukocytes
A
granulocytes
Agranulocytes
8
Q
Agranulocytes
A
do not have granules
- lymphocytes
- monocytes
- platelets
9
Q
Granulocytes
A
have granules
- neutrophils
- basophils
- eosinophils
10
Q
neutrophils
A
- main targets are fungi and bacteria
- short life span
- multi-lobed nucleus
- 60-70% of white blood cells
11
Q
eosinophils
A
- bilobed nucleus
- parasitic and allergic reactions
- life span 18-12 days
12
Q
basophils
A
- allergic responses
- life span: few hours to days
13
Q
lymphoctyes
A
immune responses
- natural killer cells
- T lymphocytes
- B lymphocytes
14
Q
monocytes
A
- produced in the bone marrow
- briefly circulate in the blood, and the migrate to the tissues
- mature into macrophages
15
Q
platelets
A
- blood clotting
- formed by the megakaryocytes in the bone marrow
