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MIDTERMS & FINALS > MLSP:HEMATOLOGY > Flashcards

MLSP:HEMATOLOGY Flashcards

1
Q

Study of the formed (cellular) elements of the blood

A

HEMATOLOGY

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2
Q
  • Cellular elements, red blood cells (RBCs)O,
    white blood cells (WBCs), and platelets (Plts)
    [can have further studying in the coagulation
    section] are enumerated and classified in all
    body fluids and in the bone marrow
A

Hematology Section

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3
Q

(t or f)

  • The MLT or MLS can detect disorders such as
    leukemia, anemia, other blood diseases, and
    infection and monitor their treatment
A

true

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4
Q

• Most common body fluid analyzed in the
hematology section
• A mixture of cells and plasma
• Obtained by using a collection tube with an
anticoagulant to prevent clotting of the sample
[EDTA tube]

A

WHOLE BLOOD

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5
Q

• The body’s main fluid for transporting nutrients,
waste products, gases, and hormones through the
circulatory system

A

BLOOD

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6
Q

is analyzed in the form of whole blood, plasma,
or serum

A

blood

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7
Q

– liquidmportion of anticoagulated blood
- Contains the protein fibrinogen

A

plasma

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8
Q

liquid portion of clotted blood

A

serum

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9
Q

comprises approximately 55% of the total
blood volume; clear straw-colored fluid that is
about 91% water and 9% dissolved substances

A

Plasma

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10
Q

• Red blood cells
• Are anucleate biconcave disks that are
approximately 7.2 microns in diameter
• contain the protein hemoglobin to transport oxygen and carbon dioxide
• Life span: 120 days

A

ERYTHROCYTES

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11
Q
  • Donut-shaped wherein the outer portion of the
    cell will be prominent in color and the middle
    one will likely be stained or have less color
A

ERYTHROCYTES

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12
Q

• White blood cells
• Provide immunity to certain diseases by producing
antibodies and destroying harmful pathogens by phagocytosis
• Normal number: 4,500 to 11,000 per microliter of blood

A

LEUKOCYTES

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13
Q

determines the number of all WBC present in the blood

A

White blood cell count

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14
Q

determines the percentage of each type of leukocyte

A

Differential cell count

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15
Q

• The most numerous leukocytes
(40-60%)
• Provide protection against infection through
phagocytosis
• Called “segmented” or “polymorphonuclear cells”
- Nuclei of the neutrophils has 3-5 segments
• Increases in bacterial infection

A

NEUTROPHILS

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16
Q

• The second most numerous leukocytes (20-
40%)
• Provide the body with immune capability by means of B and T lymphocytes
- B-lymphocytes [antibodies]; T-lymphocytes [active search and destroy of antigens]

A

Lymphocytes

17
Q

Largest circulating leukocytes
• Act as a powerful phagocytes to digest foreign
material

A

MONOCYTES

18
Q

• 1-3%
• Red orange granules, and the nucleus has only two lobes [bilobes]
• Detoxify foreign proteins and increase in
allergies, skin infections, and parasitic infections

A

EOSINOPHILS

19
Q

• 0-1%
• Least common of the
leukocytes
• The cytoplasm contains
large granules that stain
purple-black
• Release histamine in
the inflammation process
and heparin to prevent abnormal blood clotting

A

BASOPHILS

20
Q

• Platelets
• Small, irregularly shaped disks formed from the cytoplasm of very large cells in the bone
marrow called the megakaryocytes

A

THROMBOCYTES

21
Q

• The primary analysis performed in the hematology
section
• Very often it is ordered on a STAT basis
• Series of different tests

A

COMPLETE BLOOD COUNT (CBC)

22
Q

Sometimes a part of the hematology section, but in larger laboratories, it is a separate section
- Tests here is not as open as the hematology
section

A

COAGULATION SECTION

23
Q

• Needed for the microscopic of blood cells that is performed for the differential blood cell count, for special staining procedures, and for nonautomated reticulocyte counts
• Should be collected before other samples to avoid platelet clumping
• Obtained by:
- Dermal puncture
- Venipuncture: EDTA (within 1 hour of collection)

A

Blood Smears

24
Q

• Smooth film of blood,that covers,approximately one-half to two thirds of the slide
• Does not contain ridges or holes
• Has a lightly feathered,edge without streaks
[ends]

A

BLOOD SMEAR

MIDTERMS & FINALS (39 decks)

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