Deck 51: Assisting in the Clinical Laboratory

Question 1

A decrease in hemoglobin levels in red blood cells (RBCs) is seen in iron-deficiency anemia.

Answer 1

True

Question 2

For qualitative tests, a numeric value is attached to the result that specifically states the amount of analyte in a given volume of specimen.

Answer 2

False

Question 3

A centrifuge load always contains an even number of tubes.

Answer 3

True

Question 4

Culture and sensitivity (C&S) testing is performed in the microbiology department of the clinical laboratory to determine proper antibiotic therapy.

Question 5

Physical hazards in the laboratory can be classified as electrical, fire, or mechanical.

Question 6

Medical assistants are trained to perform high-complexity tests in the physician's office.

Question 7

Patient samples are tested in the medical laboratory to determine whether test results are within a certain reference range.

Question 8

A fecal occult blood test is an example of a quantitative screening test.

Question 9

Chain of custody procedures are extremely important when specimens are collected and handles for drug and alcohol testing.

Question 10

The most effective means of preventing infection is the use of disposable gloves.

Question 11

For a quantitative test, the result is expressed numerically.

Question 12

When using a fire safety blanket, you should be sure to wrap the person securely in the blanket to smother the flames.

Question 13

The military clock time of 1735 hours corresponds to 5:35 AM on the Greenwich clock.

Question 14

The gram is the unit of mass in the metric system.

Question 15

A screening test is performed to help diagnose a specific health problem in the patient.

Question 16

The longer the objective of the microscope, the greater the magnification of the lens.

Question 17

Laboratories that perform moderate- to high-complexity tests must undergo an unannounced inspection every 2 years.

Question 18

Microbiology specimens must be collected in sterile containers.

Question 19

If chemicals are splashed into the eyes, the eyes should be flushed with water from an eyewash station for at least 5 minutes.

Question 20

MSDS must be kept on file only for laboratory chemicals considered teratogenic.

Question 21

Which of the following is not a waived test?

A)Dipstick urinalysis
B)Fecal occult blood
C)Gram staining
D)Spun microhematocrit

Question 22

Which of the following is not a responsibility of the medical assistant in the clinical laboratory?

A)Providing proper patient preparation
B)Interpret ting abnormal results and providing patients with diagnoses
C)Developing a knowledge of the normal ranges of results
D)Obtaining and labeling specimens

Question 23

In the identification system of the National Fire Protection Association, the white diamond indicates ______ of the chemical.

A)the flammability
B)special hazards
C)the reactivity or stability
D)the health hazard

Question 24

Pipets used to deliver or transfer specified volumes of liquid to prepare reagents include which type(s)?

A)Serologic
B)Graduated
C)Volumetric
D)B and C
E)All of the above

Question 25

The act passed by Congress to establish quality standards for all laboratory testing is referred to as:

A)FDA
B)CDC
C)CLIA
D)MSDS

Question 26

Decreased hemoglobin levels are seen in which of the following illnesses?

A)Iron-deficiency anemia
B)Hyperthyroidism
C)Cirrhosis of the liver
D)A and C
E)All of the above

Question 27

The shortest objective lens on the microscope has the lowest power (4´) and is called the scanning lens.

Question 28

The pledge of healthcare professionals to work to achieve the highest degree of excellence in the care given to every patient is otherwise known as:

A)chain of custody
B)quality assurance
C)quality control
D)incident reporting

Question 29

A term used to describe a blood sample in which the red blood cells have ruptured is:

A)hematoma
B)preservatives
C)hemolyzed
D)teratogen

Question 30

You are preparing a chemical hygiene plan for your employer and need copies of the material safety data sheets (MSDS) for several products in use in your laboratory.The first step is to contact:

A)the manufacturer of the product
B)the CDC
C)an OSHA representative
D)a sales representative

Question 31

A blood culture and sensitivity (C&S) test is most likely to be performed in which division of the clinical laboratory?

A)Urinalysis
B)Chemistry
C)Hematology
D)Microbiology

Question 32

Categories of tests performed in the clinical laboratory are assigned by the FDA on the basis of the:

A)potential risk to public health
B)expense to the patient
C)ease of performance
D)instrumentation and supplies needed

Question 33

You are required to transfer 10 mL of urine from a 24-hour specimen into a special tube to be sent to a referral laboratory.You:

A)pour the urine into the tube, estimating the amount
B)use a graduated cylinder to measure the urine and then pour it into the tube
C)use a serologic pipet to transfer the urine into the tube
D)use a beaker to measure 10 mL and pour it into the tube

Question 34

Immersion oil prevents refraction of the light and improves the resolution of the magnified image.

Question 35

A portion of a well-mixed sample that is removed for testing is called a(n):

A)aliquot
B)analyte
C)diluent
D)exudate

Question 36

Which of the following is the most efficient method of preventing the spread of infection in a laboratory?

A)Using a sterile container for sharps
B)Washing your hands
C)Using sterile cups in urine collection
D)Cleaning with a chemical disinfectant

Question 37

Laboratory tests performed in a physician's office are most likely to be categorized as:

A)waived
B)moderate complexity
C)high complexity
D)A and B

Question 38

The microscopic image is focused by manipulating the objective and condenser.

Question 39

The metric system is based on a decimal system in which a combination of basic units and prefixes indicates a system of division in multiples of 100.

Question 40

__________ is the study of bacteria, fungi, yeasts, parasites, and viruses.

A)Chemistry
B)Histology
C)Microbiology
D)Hematology

Question 41

You mix 2 mL of a patient's serum with 18 mL of diluent to prepare a _____ dilution.

A)2:18
B)1:9
C)1:20
D)1:10

Question 42

The microscope component that directs the light up through the stage is the:

A)condenser
B)iris diaphragm
C)ocular
D)magnification system

Question 43

__________ on swabs, tubes, transport media, and other collection containers should be checked before these items are used.

Question 44

Immersion oil can be used with which of the following objective lenses of the microscope?

A)40´
B)100´
C)10´
D)A and B

Question 45

A centrifuge is used to separate:

A)solids from liquids
B)blood cells from serum or plasma
C)crystals from urine
D)all of the above

Question 46

__________ is the single most important means of preventing the spread of infection.

Question 47

An order found on a laboratory requisition that indicates the test must be done immediately is __________.

Question 48

The stepwise method used to collect, process, and test a specimen that will be used as evidence in a legal case is called the __________.

Question 49

Which of the following is most accurate for measuring 500 mL?

A)500-mL volumetric flask
B)500-mL beaker
C)500-mL graduated cylinder
D)500-mL Erlenmeyer flask

Question 50

A(n) __________ is used in the microbiology laboratory to enhance the growth of pathogenic microorganisms in culture media.

Question 51

The clinical __________ department analyzes blood, cerebrospinal fluid (CSF), urine, and joint fluid.

Question 52

An MSDS contains which of the following?

A)Trade and chemical names
B)Hazardous ingredients
C)Manufacturer's name and address
D)All of the above

Question 53

An autoclave can best be compared with a(n):

A)oven
B)deep fryer
C)pressure cooker
D)washing machine

Question 54

Which of the following is a qualitative laboratory test result?

A)RBCs: 6,000,000/mm3
B)Fecal occult blood test: positive
C)Hematocrit: 45%
D)A and C

Question 55

Balancing a centrifuge requires that all tumbles in the load:

A)have an equal amount of liquid of the same viscosity
B)are of equal size and shape
C)have a partner directly across in the rotor holder
D)all of the above

Question 56

__________ is the physical, chemical, and microscopic examination of urine.

Question 57

Aerosolization in a centrifuge can be prevented by ensuring that:

A)the tubes have an equal amount of fluid
B)the atmosphere has 5% carbon dioxide
C)the tubes are tightly capped
D)rubber cups are in the bottom of the carriers

Question 58

The clinical chemistry department performs which of the following tests?

A)Presence of ketones in urine
B)Cell morphology
C)Blood cell count
D)Lipid profile

Question 59

The ocular of the microscope generally magnifies the image:

A)2 times
B)5 times
C)10 times
D)minimally

Question 60

When the 40´ objective is in place on the microscope, the total magnification of the specimen is:

A)40´
B)4´
C)400´
D)80´

Question 61

An important responsibility of the medical assistant is to make sure collected specimens are labeled properly before they are sent to a reference laboratory.Summarize at least five items that must be included on a specimen label.

Question 62

A(n) __________ is a liquid used to reduce the concentration of a specimen in a sample.

Question 63

Summarize methods that can be used to prevent physical hazards in the clinical laboratory.

Question 64

The objective of __________ in the medical laboratory is to ensure the accuracy and reliability of test results.

Question 65

__________ are fluids that have escaped from blood vessels and been deposited in surrounding tissues.

Question 66

The microscopic analysis of cells is the science of __________.

Question 67

__________ encompasses a comprehensive set of policies and procedures developed to ensure the reliability of laboratory results.

Question 68

A(n) __________ uses steam under pressure to destroy all microorganisms.

Question 69

Describe the information included in the Material Safety Data Sheet (MSDS).

Question 70

The medical assistant is trained to perform CLIA-waived tests in the ambulatory laboratory setting.Based on your understanding of these tests, summarize at least five of them, along with their functions.

Question 71

Specimens collected in the ambulatory care setting frequently are sent to a(n) __________ for analysis.

Question 72

List the recommendations from the CDC regarding infection control.

Question 73

Describe the purpose of the Clinical Laboratory Improvement Amendments (CLIA).

Question 74

A chemical added to a blood sample after collection to prevent clotting is called a(n) __________.

Question 75

The __________ is the substance tested for or analyzed in a specimen.