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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
When focusing in the microscope, begin with...
The 10x objective
26
Lenses should be wiped with?
Lens paper
27
What is the total magnification with a 10x ocular and the 40c objective?
400x
28
In a microscope urinalysis, red and white blood cells are reported per...
HPF
29
The macroscopic examination of urine is..
Observing the color and character
30
The pH of urine is checked to determine...
Acidity or alkalinity
31
A uti would be indicated by the presence of...
Numerous white blood cells
32
If a patient feels faint during a vein puncture, you should have the patient do what?
Put their head between their knees and hold smelling salts under their nose
33
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...
11 mark
34
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...
50
35
When performing a differential white blood cell count, what will be recognized by large blue to purple staining granules?
Basophil
36
The white blood cell most often seen when performing a differential
Segmented neutrophil
37
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?
Lavender top
38
Most common bacteriology stain
Gram stain
39
Microscopically, an organism is determined to be what when it appears round and grouped in clusters?
Staphlyococcus
40
What is done to determine the drug of choice and commonly done on Mueller-Hinton agar?
Sensitivity testing
41
The most common positions for chest X-rays
PA and lateral
42
The substance used to prevent X-ray exposure
Lead
43
Done to determine whether a bacteria is gram positive or gram negative
Gram staining
44
On a normal ECG tracing, the first wave to show downward deflection
Q wave
45
The purpose for applying paste or jelly when running an ECG is to reduce...
Skin resistance
46
The first sound heard when taking blood pressure
Systolic pressure
47
A counting chamber utilized in manual microscopic methods
Hemacytometer
48
Temp in C equivalent to 98.6•F
37•
49
Produced when the antigens or microorganisms are injected into the patient
Active immunity
50
When autoclaving surgical instruments, the timing period begins when...
Adequate pressure has built up and the proper temp has been reached
51
Large amounts in injectable medication, at least 2ml or more, are given...
Intramuscularly
52
Hot packs are a form of physical therapy that provides...
Superficial heat and moist heat
53
Ultrasound waves are disrupted by...
Air and gas
54
What is NOT a common part to all needles?
Rounded point
55
Syringes are generally graduated in...
mL and cc
56
What is used in the treatment of pneumonia, emphysema, and COPD?
IPPB
57
Clamps off small vessels and bleeders
Hemostatic forceps
58
Largest white blood cells
Monocytes
59
Universal donor blood type
O
60
What gauge has the widest lumen?
Smallest gauge
61
The nerve to be concerned about when giving an injection into the buttocks
Sciatic
62
An injection into the tissues between the skin and muscle
Subcutaneous
63
Size of the needle is expressed by...
Gauge numbers
64
Test for sugar metabolism
GTT
65
A type of forceps
Hemostats
66
What is the longest time a tourniquet should remain o. The patients arm?
1 minute
67
Term for red blood cell
Erythrocyte
68
Term for white blood cell
Leukocyte
69
How much does a urine test usually require?
30-50mL
70
What are the two types of direct examination using a microscope to identify microorganisms?
Wet mount and KOH mount

MA (12 decks)

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