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Medical Lab > Final > Flashcards

Final Flashcards

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USMLE® Step 1 flashcards
1
Q

A device for spinning a specimen at high speed until it separates into its component parts

A

centrifuge

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2
Q

A foreign object that is visible through a microscope but is unrelated to the specimen

A

artifact

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3
Q

T or F:
A lab outside the office owned by another company is a reference lab

A

True

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4
Q

instrument used to measure the air taken in by and expelled from the lungs

A

spirometer

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5
Q

Why do we calibrate machines?

A

for accuracy

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6
Q

What test require pt to sign a chain of custody form?

A

drug and alcohol screening

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7
Q

what is the term for blood in the urine

A

hematuria

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8
Q

How long should urine sit in room temp before testing?

A

60 min

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9
Q

Infectious mononucleosis is caused by which of the following

A

Epstein-Barr virus

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10
Q

Labs that run moderate-complexity tests must be run by an…

A

MD

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11
Q

T or F:
If a supposed fasting patient says they’ve only drank coffee you should let the provider know to see if you can continue

A

True

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12
Q

What kind of tests monitors chronic obstructive pulmonary disease (COPD)

A

Pulmonary Function tests

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13
Q

Routine tests that are most often performed at the physician’s office laboratory (POL) are?

A

chemistry and hematology

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14
Q

T or F:
Fully explaining the procedure and all expectations is a good way to calm a nervous patient

A

True

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15
Q

What do we use to get a specimen of an infected wound?

A

swab stick

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16
Q

chemically coated strip to measure urine quality

A

reagent

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17
Q

The low power objective magnifies a specimen by

A

10x

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18
Q

views that are recorded on an electrocardiogram that are produced by the electrical activity of the heart

A

leads

19
Q

T or F:
A positive hCG test indicates an infection

A

False

20
Q

What does QNS mean?

A

Quantity Not Sufficient

21
Q

life-threatening dysrhythmia that results in no cardiac output

A

ventricular fibrillation

22
Q

What does a pulse oximeter measure?

A

oxygen intake levels

23
Q

Main advantage for using a physician’s office lab (POL)

A

Get results faster

24
Q

Most common form of urine sample

A

random

25
Q

T or F:
The main purpose of the immune system is to allow pathogens to enter the body

A

False

26
Q

T or F:
The purpose of a control sample is to verify accuracy

A

True

27
Q

What does oxygen administration do?

A

increases the amount of oxygen your lungs get

28
Q

measures the concentration of substances dissolved in urine

A

specific gravity

29
Q

method of collecting urine when performing a urine culture to identify the number and the types of pathogens present

A

clean catch mid-stream

30
Q

What must accompany every specimen that leaves the office?

A

lab requisition

31
Q

What term means failure of the kidneys to produce urine?

A

anuria

32
Q

What term refers to an insufficient production of urine

A

oliguria

33
Q

used to assess the electrical activity of a patient’s heart over a 24-hour period of normal activity

A

holter monitor

34
Q

What was created in response to public concern over the accuracy of laboratory testing?

A

Clinical Laboratory Improvement Amendments of 1988

35
Q

how many samples are needed for a fecal occult blood specimen

A

3

36
Q

What kind of lab test uses samples of whole blood

A

hematologic

37
Q

pen-like instrument that records impulse movement on the ECG paper

A

stylus

38
Q

Which of the following is one of the first signs of liver disease?

A

protein in the urine

39
Q

primary pacemaker of the heart

A

SA node

40
Q

measures electrical impulses produced by the heart

A

electrocardiography

41
Q

Which of the following would be included in the patient’s instructions regarding holter monitoring?

A

record all activities, emotions, symptoms, and medications taken

42
Q

Which part of an optical microscope contains a magnifying lens?

A

objective

43
Q

Which electrode is placed at the fourth intercostal space to the left of the sternum

A

V2

44
Q

Which types of tests may be done in a physician’s office laboratory (POL) if a Certificate of Waiver has been granted?

A

erythrocyte sedimentation rate and urinalysis

Medical Lab (2 decks)

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