Intro Lab Final Exam (Tests 1 and 2)

A Class "A" fire is: a. Ordinary combustibles b. Flammable liquids and gases c. Electrical equipment d. Powdered metal

a. Ordinary combustibles

In order to view birefringent items, you must use which type of microscope? a. Polarizing b. Darkfield c. Phase Contrast d. Electron scanning

a. Polarizing

Match the color with its respective meaning on the Diamond Hazard System used in the identification system of National Fire Protection Association Blue

Health Hazard

Biohazardous containers are usually indicated in the laboratory by what color? a. Yellow b. Red c. Blue d. Green

b. Red

The role of the CEO of a healthcare organization is to: a. Implement policy and daily activities b. Set policy and guide the organization c. Manage financial affairs of the organization d. Manage the hospital information system

b. Set policy and guide the organization

An analytical method that depends on light-scattering properties of antigen-antibody complexes is: a. Absorption spectrophotometry b. Reflectance spectrophotometry c. Nephelometry d. Ion-selective electrodes

c. Nephelometry

A laboratory where the tests performed are limited to those done for the Physician's own patients a. Reference Laboratory b. Point-of-Care Testing c. Physician's Office Laboratory d. Centralized Laboratory

c. Physician's Office Laboratory

The traditional location in a health care facility where specimens from patients are sent to .be tested is called: a. Reference Laboratory b. Point-of-Care Testing c. Physician's Office Laboratory d. Centralized Laboratory

d. Centralized Laboratory

Match the color with its respective meaning on the Diamond Hazard System used in the identification system of National Fire Protection Association Red

Flammability

Match the color with its respective meaning on the Diamond Hazard System used in the identification system of National Fire Protection Association White

Other

The spectrum of light visible to the human eye falls between 400nm and __ _ a. 700nm b. 1200nm c. 450nm d. 850nm

a. 700nm

Match the color with its respective meaning on the Diamond Hazard System used in the identification system of National Fire Protection Association Yellow

Reactivity Warning

True or False: The mucus membranes include oral, nasal and conjunctival membranes. True False

True

The most common type of microscope illumination system used in the clinical laboratory is: a. Brightfield b. Phase contrast c. Polarizing d. Fluorescent

a. Brightfield

The definition of a waived test is laboratory tests or procedures: a. Cleared by the FDA for home use b. That can be performed by a preferred provider c. That have a small reasonable risk of harm to the patient if performed incorrectly d. That are moderately complex

a. Cleared by the FDA for home use

Personal Protective Equipment (PPE) must be provided to employees to maintain their health safety in the workplace. Which of the following items is NOT considered part of the more common PPE? a. Decontamination suit b. Mask (if working with aerosols) c. Lab coats or gowns d. Gloves

a. Decontamination suit

A laboratory test is ordered on a patient known to have HN. The laboratory tech must be able to measure the patient's CD4 and CDS cell populations within the sample drawn. This dividing of cell subpopulations will be accomplished by: a. Flow Cytometry b. Spectrofluorometry c. Paper Chromatography d. Electorphoresis

a. Flow Cytometry

In chromatography: a. Mixtures of solutes dissolved in a common solvent are separated from one another b. Mixtures of solvents are separated from one another c. Solutions with various pH measurements are separated from one another d. B andC

a. Mixtures of solutes dissolved in a common solvent are separated from one another

A laboratory used for the more complex analysis of tests not performed by the traditional laboratory is called: a. Reference Laboratory b. Point-of-Care Testing c. Physician's Office Laboratory d. Centralized Laboratory

a. Reference Laboratory

Electrophoresis is a technique for: a. Separation based on charge b. Separation based on color c. Separation based on infectivity d. All of the above

a. Separation based on charge

What is the purpose of the Material Safety Data Sheets (MSDS)? a. To provide descriptions hazards, safe handling, storage and disposal of hazardous chemicals b. To provide instructions for properly mixing testing reagents when making dilutions c. To provide details to employees on the location of the facility's fire equipment d. A form submitted to the state health department detailing any blood borne diseases transmitted

a. To provide descriptions hazards, safe handling, storage and disposal of hazardous chemicals

A brightfield microscope may be converted to a darkfield microscope by: a. Use of a special darkfield condenser in place of the usual condenser b. Replacement of the usual filters c. Use of a special ocular d. Changing the type of light source

a. Use of a special darkfield condenser in place of the usual condenser

A laboratory technician is preparing a spinal fluid specimen for chemistry analysis. After centrifugation, she removes the tube from the centrifuge and notices a packed layer of material at the bottom. This is referred to as the a. sediment b. solvent c. supernatant d. solute

a. sediment

Which of the following is not included in the departments of a clinical laboratory? a. Hematology b Respiratory Therapy c. Microbiology d. Urinalysis

b Respiratory Therapy

The three most highly automated areas of the clinical laboratory are: a. Microbiology, urinalysis, and hematology b. Clinical chemistry, hematology, and urinalysis c. Clinical chemistry, microbiology, and blood banking d. Immunology, microbiology, and hematology

b. Clinical chemistry, hematology, and urinalysis

The term ocular is another name for the microscopic __ that magnifies an image. a. Objective b. Eyepiece c. Diaphragm d. Nosepiece

b. Eyepiece

The distance between the oculars on a compound microscope can be adjusted by the: a. Aperture Iris Diaphragm b. Interpupillary Distance Adjustment c. Diopter Adjustment d. Condenser Focus Knob

b. Interpupillary Distance Adjustment

Total magnification is the product of the magnification of the objective __ the magnification of the ocular. a. Added to b. Multiplied by c. Divided by d. Subtracted from

b. Multiplied by

The amount of light that passes through a colored solution compared with the light that passes through a blank solution can be calculated as the: a. Percent Absorbance b. Percent Transmittance c. Percent Reflectance d. Percent Fluorescence

b. Percent Transmittance

The testing of a laboratory that can be brought to the patient's bedside is called: a. Reference Laboratory b. Point-of-Care Testing c. Physician's Office Laboratory d. Centralized Laboratory

b. Point-of-Care Testing

All of the following are criteria for creating an acceptable standard curve except: a. The line connects all the data points b. The line runs up toward the right c. The line is straight d. The line goes through the origin, or intersect, of both axes

b. The line runs up toward the right

Laboratory centrifuge speed is typically measured in which of the following units? a. meter/second (m/s) b. revolutions per minute (rpm) c. miles per hour (mph) d. meter/minute (m/m)

b. revolutions per minute (rpm)

Medical errors cause approximately how many deaths in the US annually? a. > 1 million b. 50,000 c. 98,000 d. 150,000

c. 98,000

In wfich of the following situations is immediate hand-washing NOT necessary . a. Before touching any mucous membranes b. After contact with patients during phlebotomy c. After putting on lab coat for the workday d. Before applying makeup

c. After putting on lab coat for the workday

If a competitive immunoassay is performed, what type of proportional relationship will the light transmitted have to the amount of antigen present in a patient sample? a. Directly proportional b. Semi-proportional c. Inversely proportional d. Negatively proportional

c. Inversely proportional

An analyzer that tests each sample thoroughly before moving on to the next is called a ___ _ a. Random Motion b. Access Denied c. Random Access d. Throughput Access

c. Random Access

A patient is admitted with respiratory symptoms and later confirmed to have tuberculosis (TB); What precautions should be taken when entering the patient's room? a. Chemical safety precautions b. Fire safety precautions c. Respiratory precautions d. Hazardous material precautions

c. Respiratory precautions

Hepatitis B Virus (HBV) can remain stable in dried blood and blood products at room temperature for up to __ days. a. Fourteen b. Nine c. Seven d. Three

c. Seven

The magnifying powers of the usual microscope objectives are: a. 5x, lOx, 20x b. lOx, 20x, 40x c. 10x,40x,80x d. 10x, 40x, lOOx

d. 10x, 40x, lOOx

General functions of an LIS can include: a. Bar code reading of specimens b. Selection of tests from a test menu c. Reporting of test results d. All of the above

d. All of the above

Laboratory information systems (LIS) can be applied to: a. Specimen processing b. Inventory control c. Data entry on patients' charts d. All of the above

d. All of the above

Potential benefits of laboratory automation include: a. Ability to still provide service with less laboratory staff b. Reduction of medical errors c. Better patient identification with bedside bar-code labels d. All of the above

d. All of the above

Safety in the clinical laboratory includes: a. A formal safety program b. Chemical hygiene plan c. Bloodborne pathogen plan d. All of the above

d. All of the above

Which federal agency has regulations and standards designed specifically to protect staff working in the laboratory, other health care personnel, patients treated in the health care facility, and society as a whole? a. National Committee for Clinical Laboratory Standards (NCCLS) b. College of American Pathology (CAP) c. Occupational Safety and Health Administration (OSHA) d. Clinical Laboratory Improvement Amendments of 1988 (CLIA'88)

d. Clinical Laboratory Improvement Amendments of 1988 (CLIA'88)

When patient specimen and reagent antigen (tagged with enzyme) are introduced at the same time into a reaction well with a limited number of antibody binding sites, what type of reaction has occurred: a. Non-competitive Binding b. Limited Binding c. Enzyme Washing d. Competitive Binding

d. Competitive Binding

Water that is passed through a resin column with pos and neg charged particles is referred to as _______ water. a. Distilled b. Reverse Osmosis c. Quality Control d. Deionized

d. Deionized

What is the proper way to read a clear liquid meniscus in a graduated cylinder? a. It should be read by looking straight down the barrel of the cylinder from the top b. It should be read from a great distance away and at the highest point of the curve c. It does not need to be read when measuring volumes for the laboratory d. It needs to be read at eye-level and the measurement taken at the bottom-most point of the curve

d. It needs to be read at eye-level and the measurement taken at the bottom-most point of the curve

Analyzers generally have two configurations for patient sampling: Round and __ a. Square b. Spherical c. Random d. Parallel

d. Parallel

Oil is used with the: a. Ocular b. lOx objective c. 40x objective d. lOOx objective

d. lOOx objective

True or False: One of the advantages of laboratory automation with regard to lab staff safety is the ability of some instruments to pierce the specimen tube caps. a. True b. False

true