Hematology QUIZZES Flashcards
A leukocyte that primarily fights parasites and mediates allergic reaction is:
1. lymphocyte
2. monocyte
3. eosinophil
4. neutrophil
- eosinophil
The percentage of whole blood that is composed of erythrocytes is measured by:
1. PCV
2. MCHC
3. MCV
4. MCH
PCV
The ideal location for identifying cells for a white cell differential is the:
1. monolayer
2. rouleaux
3. application point (base)
4. feathered edge
- monolayer
An automated cell analyzer:
1. recognizes blood parasites
2. differentiates cells by size
3. differentiates cells by color
4. is always superior to a hand count
- differentiates cells by size
A complete blood count (CBC) includes:
1. total red cell count
2. total white cell count with differential
3. mean corpuscular hemoglobin concentration (MCHC)
4. all of the choices
all of the choices
A. Identify this cell _____.
B. What are the morphology features of this leukocyte (white blood cell)?
(size, nuclear appearance, cytoplasm appearance)
- Lymphocyte
- It is between 1.5-2x the size of a RBC. The nucleus takes up most of the cytoplasm.
A. Identify this cell ____.
B. What is the function of this cell? (DO NOT Describe appearance)
- Monocyte
- Phagocytize bacteria among other debris by dissolving with enzymes
There are four recommendations for appropriate technique to collect sample for a CBC. Name two.
- use the largest needle appropriate for the blood draw
- collect from an area with fast-flowing blood
The preferred anticoagulant for hematology (purple top tube) contains:
1. Sodium citrate
2. EDTA
3. Heparin
4. Sodium fluoride
- EDTA
An elevated total White Blood Cell count (WBC) is caused by:
1. all of the choices are correct
2. infection
3. drug reaction
4. inflammation
- all of the choices are correct
A RBC fragment caused by mechanical injury to the cell (such as traveling through a liver tumor) is called a (an):
1. acanthocyte
2. schistocyte
3. echinocyte
4. spherocyte
- schistocyte
A special stain used to identify reticulocytes is
1. Lactophenol cotton blue
2. New methylene blue
3. Giemsa stain
4. Wright’s stain
- New methylene blue
The “dots” inside of a stained reticulocyte are:
1. DNA
2. No one knows
3. RNA
4. Iron
- RNA
The first step in performing a platelet estimate is to:
1. go to the dense monolayer of the slide
2. ask someone else what to do
3. change to the oil objective
4. evaluate for platelet clumps under low power
- evaluate for platelet clumps under low power
Toxic neutrophils are caused by:
1. toxin exposure
2. poor nutrition
3. viral infection
4. microenvironment that causes shortened maturation in bone marrow
- microenvironment that causes shortened maturation in bone marrow