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MA > Laboratory > Flashcards

Laboratory Flashcards

1
Q

The most common device for obtaining cultures

A

Sterile swab

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2
Q

A properly collected sputum specimen should contain mucus coughed up from…

A

The lungs

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3
Q

Is a stool specimen mixed with urine appropriate for examination?

A

No

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4
Q

The most reliable and timely method of transporting microbiological specimens

A

Pick up by the laboratory

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5
Q

Should dry ice be used for packing when sending a specimen through the mail?

A

No

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6
Q

Term referring to a living microorganism or its toxin that may cause human disease

A

Etiologic agent

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7
Q

When preparing a wet mount, mix a small amount of the specimen with what on a glass slide?

A

A drop of 0.9% sodium chloride

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8
Q

What retains dye, turning purple?

A

Gram-positive bacteria

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9
Q

The optimal temp to promote growth of bacteria in a culture

A

37•Celsius

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10
Q

The most common type of culture medium used in the laboratory

A

Blood agar

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11
Q

Bacteria placed in a culture plate grows sufficiently within how long?

A

Several hours

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12
Q

An MA assistant needs additional training to be able to perform microbiological tests such as…

A

Sensitivity test and to interpret cultures of specimens

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13
Q

An excess of sodium in the blood

A

Hypernatremia

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14
Q

An ongoing system to evaluate quality of medical care that is being provided

A

Quality control system

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15
Q

Found in soil and water

A

Bacteria

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16
Q

The process of blood cells clumping together to form a clot

A

Coagulation

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17
Q

When using a centrifuge, what should you always do?

A

Balance the tubes placed inside

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18
Q

What are some things that could make urine appear hazy or cloudy?

A

Mucus, bacteria, amorphous crystals

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19
Q

The intensity of the urine’s color reflects…

A

The concentration

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20
Q

A genitourinary tract infection would primarily be evidenced by a microscopic containing many…

A

White blood cells

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21
Q

When performing a microscopic, the evaluation of each element present in the urinary sediment is based upon the…

A

Average number found in ten fields

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22
Q

What gauge needle is appropriate when performing phlebotomy of veins in the forearm?

A

20 or 22 gauge

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23
Q

When doing a red cell count multiply the cells counted by…

A

10,000

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24
Q

The hematocrit reading is low in cases of…

A

Anemia

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25
Q

When focusing in the microscope, begin with…

A

The 10x objective

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26
Q

Lenses should be wiped with?

A

Lens paper

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27
Q

What is the total magnification with a 10x ocular and the 40c objective?

A

400x

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28
Q

In a microscope urinalysis, red and white blood cells are reported per…

A

HPF

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29
Q

The macroscopic examination of urine is..

A

Observing the color and character

30
Q

The pH of urine is checked to determine…

A

Acidity or alkalinity

31
Q

A uti would be indicated by the presence of…

A

Numerous white blood cells

32
Q

If a patient feels faint during a vein puncture, you should have the patient do what?

A

Put their head between their knees and hold smelling salts under their nose

33
Q

When using a standard white blood cell pipe tote for determining a white blood cell count, the blood is drawn to the 0.5 mark. The diluting fluid is then drawn to the…

A

11 mark

34
Q

When using a standard white blood cell piper the for determine a white blood cell count, the total number of cells counted is multiplied by…

A

50

35
Q

When performing a differential white blood cell count, what will be recognized by large blue to purple staining granules?

A

Basophil

36
Q

The white blood cell most often seen when performing a differential

A

Segmented neutrophil

37
Q

What vacutainer tube is used when the sample is commonly used for hematology testing or does not clot because an anti-coagulant has been mixed with the whole blood?

A

Lavender top

38
Q

Most common bacteriology stain

A

Gram stain

39
Q

Microscopically, an organism is determined to be what when it appears round and grouped in clusters?

A

Staphlyococcus

40
Q

What is done to determine the drug of choice and commonly done on Mueller-Hinton agar?

A

Sensitivity testing

41
Q

The most common positions for chest X-rays

A

PA and lateral

42
Q

The substance used to prevent X-ray exposure

A

Lead

43
Q

Done to determine whether a bacteria is gram positive or gram negative

A

Gram staining

44
Q

On a normal ECG tracing, the first wave to show downward deflection

A

Q wave

45
Q

The purpose for applying paste or jelly when running an ECG is to reduce…

A

Skin resistance

46
Q

The first sound heard when taking blood pressure

A

Systolic pressure

47
Q

A counting chamber utilized in manual microscopic methods

A

Hemacytometer

48
Q

Temp in C equivalent to 98.6•F

A

37•

49
Q

Produced when the antigens or microorganisms are injected into the patient

A

Active immunity

50
Q

When autoclaving surgical instruments, the timing period begins when…

A

Adequate pressure has built up and the proper temp has been reached

51
Q

Large amounts in injectable medication, at least 2ml or more, are given…

A

Intramuscularly

52
Q

Hot packs are a form of physical therapy that provides…

A

Superficial heat and moist heat

53
Q

Ultrasound waves are disrupted by…

A

Air and gas

54
Q

What is NOT a common part to all needles?

A

Rounded point

55
Q

Syringes are generally graduated in…

A

mL and cc

56
Q

What is used in the treatment of pneumonia, emphysema, and COPD?

A

IPPB

57
Q

Clamps off small vessels and bleeders

A

Hemostatic forceps

58
Q

Largest white blood cells

A

Monocytes

59
Q

Universal donor blood type

A

O

60
Q

What gauge has the widest lumen?

A

Smallest gauge

61
Q

The nerve to be concerned about when giving an injection into the buttocks

A

Sciatic

62
Q

An injection into the tissues between the skin and muscle

A

Subcutaneous

63
Q

Size of the needle is expressed by…

A

Gauge numbers

64
Q

Test for sugar metabolism

A

GTT

65
Q

A type of forceps

A

Hemostats

66
Q

What is the longest time a tourniquet should remain o. The patients arm?

A

1 minute

67
Q

Term for red blood cell

A

Erythrocyte

68
Q

Term for white blood cell

A

Leukocyte

69
Q

How much does a urine test usually require?

A

30-50mL

70
Q

What are the two types of direct examination using a microscope to identify microorganisms?

A

Wet mount and KOH mount

MA (12 decks)

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