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MT6317 > 1a2. Basic Principles and Practices > Flashcards

1a2. Basic Principles and Practices Flashcards

1
Q

This provides uniformity and consistency

A

SI units

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2
Q

Subclassifications of SI system

A

Basic units
Derived units
Selected accepted non-SI units

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3
Q

Give the SI unit:

Length

A

meter

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4
Q

Give the SI unit:

Mass

A

Kilogram

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5
Q

Give the SI unit:

Time

A

Second

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6
Q

Give the SI unit:

Electric current

A

Ampere

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7
Q

Give the SI unit:

Thermodynamic temperature

A

Kelvin

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8
Q

Give the SI unit:

Amount of substance

A

Mole

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9
Q

Give the SI unit:

Luminous intensity

A

Candela

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10
Q

Give the selected derived unit:

Frequency

A

Hertz

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11
Q

Give the selected derived unit:

Force

A

Newton

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12
Q

Give the selected derived unit:

Celsius temperature

A

Degree Celsius

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13
Q

Give the selected derived unit:

Catalytic activity

A

Katal

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14
Q

Give the selected non-SI unit:

Time

A

Minute, Hour, Day

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15
Q

Give the selected non-SI unit:

Volume

A

Liter

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16
Q

When is amniocentesis done?

A

2nd trimester

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17
Q

This is examined to determine the lung maturity of the fetus

A

Amniotic fluid

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18
Q

L:S ratio is used for which bodily fluid?

A

Amniotic fluid

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19
Q

These (2) are measured to determine the lung maturity of a fetus, which are important lung surfactants

A

Lectin
Sphingomyelin

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20
Q

The normal L:S ratio

A

> /= 2

21
Q

Type of blood specimen:

Plasma and cellular components such as RBC, WBC, and platelets are present

A

Whole blood

22
Q

Type of blood specimen:

With anticoagulant, requires immediate mixing following blood collection

A

Whole blood

23
Q

Type of blood specimen:

Clear yellow supernatant on top upon settling of whole blood

A

Plasma

24
Q

Type of blood specimen:

Obtained from a tube without anticoagulant

A

Serum

25
Q

Which is clearer, plasma or serum?

A

Serum

26
Q

T/F: the blood sample for serum does not require clotting before centrifugation, since the centrifugation will be able to separate its serum

A

F !

27
Q

Settings for centrifugation of blood sample

A

1000-2000 g for 10 minutes

28
Q

How much time is needed to clot a blood sample? (with and without clot activator)

A

1 hour (without)
30 minutes (with)

29
Q

How much time is needed to clot a blood sample with thrombin?

A

5 minutes

30
Q

In what test is gel activator discouraged due to its false absorption?

A

Therapeutic drug monitoring (absorbs drugs)

31
Q

How much time is needed for the IV to be turned off before venipuncture on the site?

A

2 minutes

32
Q

T/F: collection above the IV site is allowed

A

F (should be below)

33
Q

This specific anticoagulant is used for lactose testing, glucose, and ethanol testing

A

Potassium oxalate (in gray tube)

34
Q

This is the anticoagulant used for anticoagulant therapy and synovial fluid crystal analysis

A

Sodium heparin

35
Q

This anticoagulant inhibits DNA polymerases

A

Heparin

36
Q

This tube is used for lead testing

A

Tan colored

37
Q

This anticoagulant causes blue background in wright’s staining

A

Heparin

38
Q

This anticoagulant distorts cell morphology

A

Oxalate & Fluoride

39
Q

This anticoagulant preserves labile coagulation factors

A

Citrate

40
Q

This anticoagulant stimulates acid phosphatase

A

Citrate

41
Q

Analytes increased with the use of tourniquet

A

Potassium, Albumin, Lactase, Ammonia

42
Q

Alternative disinfectant for alcohol during alcohol testing

A

Benzalkonium chloride

43
Q

Traces of alcohol causes what effect to the blood collected?

A

Hemolysis

44
Q

T/F: rimming/ringing is done for all blood samples to ensure that centrifugation will have its optimal effect

A

F (serum samples only)

45
Q

Rapid swelling at or near the venipuncture site due to blood leaking into the tissues

A

Hematoma

46
Q

Anemia as a result of treatment

A

Iatrogenic anemia

47
Q

The processing of a sample should be done within __ hours

A

4

48
Q

The refrigeration setting for samples should be at __ for __ hours

A

4C
8 hours

49
Q

The freezing setting for samples should be at __ for longer periods, if later testing is required

A

-20C

MT6317 (10 decks)

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