Share Phlebotomy Certification Questions 4
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In the circulatory system, gas exchange occurs in the
Veins
Capillaries
Venules
Arteries
Which blood vessels are a single cell in thickness?
Arteries
Veins
Capillaries
Arterioles
Veins and arteries are composed of how many layers?
4
1
3
2
A characteristic of arteries is
They have a thick muscle layer lining the lumen
The carry blood toward the heart
They are composed of a single layer of endothelial cells
They have valves along the lumen
An average adult has ____L of blood.
3 to 4
1 to 2
5 to 6
7 to 8
Plasma constitutes _____% of total blood volume.
45
55
92
80
Another name for WBC is
Erythrocyte
Reticulocyte
Electrolyte
Leukocyte
The main function of leukocytes is to
Transport hemoglobin
Recycle RBC’s
Protect the body against infection
Transport lipids
Which leukocyte is known as a phagocyte?
Eosinophil
Neutrophil
Lymphocyte
Basophil
Platelets remain in the circulation for
10 to 20 days
9 to 12 days
2 to 5 days
1 month
Which cellular component is responsible for the transport of hemoglobin?
Plasma
Electrolytes
WBCs
RBCs
Which laboratory test does not assist in diagnosing HIV infection?
T-cell count
Anti-HIV antibody
aPTT
Western blot
A group of inherited disorders marked by increased bleeding times is known as
Leukemias
Anemias
Hemophilias
Polycythemias
Which organ is not included in the lymphatic system?
Tonsils
Spleen
Thymus
Liver
Helper T cells are needed to make
Cytokines
Antigens
Interleukins
Antibodies
Which of the following is not an anticoagulant?
EDTA
Polymer gel
Sodium citrate
Sodium heparin
