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HEMA LEC PRELIM > HEMA W2:1 > Flashcards

HEMA W2:1 Flashcards

1
Q

Originated from Greek word “Haima” meaning blood and “Logos” meaning study.

A

HEMATOLOGY

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2
Q

discipline that studies the development of cells and diseases present in blood

A

Hematology

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3
Q

Described as worms in the blood

A

Athanasius Kircher 1657

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4
Q

Discovery of erythrocytes (RBC)

A

Swammerdam
1658

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5
Q

Human erythrocytes were described

A

Anton Van Leeuwenhoek 1674

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6
Q

Platelets were described as
petites plaques

A

Guilio Bizzozero 1842

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7
Q

Polymorphonuclear neutrophils is distinguished from other leukocytes

A

Wharton James 1846

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8
Q

First complete classification of leukocytes was established

A

Paul Ehrlich 1879

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9
Q

Development of Wright’s stain for cell staining

A

James Homer Wright 1902

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10
Q

Hematology was considered separate science from clinical pathology

A

1920

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11
Q

Automated analyzers are now able to differentiate and enumerate cells from one another

A

Present

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12
Q

➢ Wright’s stain technique remains as the foundation in blood cell identification through the practice of preparing a peripheral blood smear
➢ It has the capability to observe the morphology of the cells unlike the automated analyzers

A

Present

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13
Q

The blood is always in the

A

fluid state in VIVO (inside the body)

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14
Q

But coagulates withi

A

5-10 minutes in VITRO (outside)

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15
Q

almost in a neutral phase but changes
in the presence or the absence of a certain gas

A

Blood

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16
Q

Arterialblood

A

Bright red

17
Q

Dark purplish red (sometimes even darker)
• Has a deoxygenated property because it
passes through the veins where waste
materials are locate
• Contains Carbon Dioxide rich red cells
(CO2)

A

Venous blood

18
Q

Blood pH

A

7.35-7.45

19
Q

If the blood is filled with oxygen →

A

More alkaline

20
Q

Average pH

A

7.40

21
Q
  • Oxygenated blood (O2)
  • Higher pH or normal
  • Alkaline to Neutral pH
A

Arterial blood

22
Q

Acidic State (Lower pH because CO2 is an acidic gas)

A

Venous blood

23
Q

Specificgravityofbloodis

A

1.0555

24
Q

Specificgravityofwateris

A

1.00

25
Q

blood is _____x more viscous and thicker than water
o It’sbecausebloodcontainstheproteinsand
solutes

A

3.5-4.5

26
Q

ml of blood contributes to the per kilogram of body weight

A

75-85mL

27
Q

NORMAL BLOOD VOLUME
o Male adult

A

5-6L

28
Q

NORMAL BLOOD VOLUME
o Female adult

A

4-5L

29
Q

NORMAL BLOOD VOLUME
o Newborn:

A

150-350mL

30
Q

NORMAL BLOOD VOLUME
o Average (Adult):

A

5 L

HEMA LEC PRELIM (9 decks)

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