question

Which action by the phlebotomist will comply with the College of American Pathologist patient safety goal "to improve patient and sample identification at the time of specimen collection" and The Joint Commission Patient Safety Goal to "improve the accuracy of patient identification"?

answer

Match the name and medical record number on the patient's ID bracelet to the name and medical record number on the preprinted collection label

question

A swab and requisition are received in the microbiology laboratory with the following information: LABEL ON SPECIMEN Patient name: Mary Jane Smith MR#:400567 Location: emergency department Doctor: Henry Jones Specimen type: lesion on left ankle Collection: @ 2pm by nurse MB Requisition Patient name: Nancy Ann Smith MR#: 400443 Location: emergency department Doctor: Henry Jones Specimen type: lesion on left ankle Collection: @ 2 pm by nurse MB The laboratory receiving clerk notes a discrepancy between the patient identifiers on the requisition and the specimen label, and question the emergency department nurse MB. This is the fourth specimen this week that has had a specimen discrepancy. What action is the most appropriate to prevent this type of error in the future?

answer

Document error and communicate to laboratory supervisor so that the risk manager conducts a root cause analysis

question

Preanalytical variables in laboratory testing include:

answer

Specimen acceptability

question

The first procedure to be followed of the blood gas instrument is out of control for all parameters is

answer

Recalibrate, then repeat control

question

Refer to the following illustration: Shown is a Levy- Jennings quality control chart, which represents control values for 13 consecutive analyses for a particular serum constituent. If the 14th value is below the -2 SD limit, which of the following should be done?

answer

Analysis system should be checked for deteriorating component

question

The mean value of a series of hemoglobin controls was found to be 15.2 g/dL, and the standard deviation was calculated at 0.20. Acceptable control range for the laboratory is +2 standard deviations. Which of the following represents the allowable limits for the control?

answer

14.8 -15.6 g/dL

question

Upon completion of a run of cholesterol tests, the technician recognizes that the control is not within the 2 standard deviation confidence range. What is the appropriate course of action?

answer

Run a new set of controls and repeat specimens

question

The following data were calculated on a series of 30 determinations of serum uric acid control: mean = 5.8 mg/dL , 1 standard deviation =0.15mg/dL. If confidence limits are set at +2 standard deviations, which of the following represents the allowable limits for control?

answer

5.50 -6.10 mg/dL

question

An index of precision is statistically known as the :

answer

Coefficient of variation

question

The term used to describe reproducibility is:

answer

Precision

question

The ability of a procedure to measure only the components it claims to measure is called:

answer

Specificity

question

The extent to which measurements agree with the true value of the quantity being measured is known as:

answer

Accuracy

question

Diagnostic specificity is defined as the percentage of individuals:

answer

Without a given disease who have a negative result by a given test

question

Employees are guaranteed the right to engage in self- organization and collective bargaining through representatives of their choice, or to refrain from these activities by which of the following?

answer

National Labor Relations Act

question

Which of the following organizations was formed to encourage the voluntary attainment of uniformly high standards in institutional medical care?

answer

The Joint Commission

question

The process by which an agency or organization uses predetermined standard to evaluate and recognize a program of study in an institution is called:

answer

Accreditation

question

CLIA was established to provide oversight to:

answer

Any lab performing patient testing

question

CAP requires refrigerator temperatures to be recorded:

answer

Daily

question

A paper or electronic report of lab must include:

answer

The name and address of the testing laboratory

question

HIPAA is a federal law that requires:

answer

Confidentiality of patients' health care information between 2 organizations

question

Your friend calls and asks you to access his test results. Which of the following does this violate?

answer

HIPAA

question

A technician is asked to clean out the chemical reagent storeroom and discard any reagents not used in the past 5 years. How should the technician proceed?

answer

Consult MSDS sheets for proper disposal

question

Using a common labeling system for hazardous material identification such as HMIS or NFPA 704, the top red quadrant represents which hazard?

answer

Flammability

question

If the HMIS or NFPA 704 hazardous material identification system has a number 4 in the left blue quadrant, it represents a:

answer

High health hazard

question

Which chemical is a potential carcinogen?

answer

Formaldehyde

question

Compressed gas cylinder should:

answer

Be secured upright to the wall or other stable source

question

The HMIS or NFPA 704 hazardous material identification system rating fro a slightly toxic chemical would be:

answer

1 in the blue quadrant

question

A chemical that causes immediate visible destruction or irreversible alterations of human tissue at the contact site is best classified as a:

answer

Corrosive

question

When hazardous chemical are transferred from the original appropriately labeled containers to a secondary container for immediate use by person performing the transfer, it:

answer

Does not require labeling

question

A technologist spilled 10 gallons of formaldehyde on the floor. After determining the chemical poses a significant health hazard, the first action step would be to:

answer

Evacuate the area

question

One of the elements of a written laboratory chemical hygiene plan is to:

answer

Designate a laboratory chemical hygiene officer

question

The purpose of the OSHA Hazard Communication, General Industry Standard, 29 CFR, Subpart Z, 1910.1200, is to require employers to establish a program ensuring personnel are provided with information regarding the workplace dangers of:

answer

Hazardous chemicals

question

Refer to the following illustration: This symbol indicates which of the following hazards

answer

Flammable

question

When working with sharp equipment and objects, use a:

answer

Mechanical device

question

For safe operation of a centrifuge:

answer

Ensure proper balance is maintained

question

Incident reports for occupational injury or illness should:

answer

Be filed for all incidents including near miss incidents

question

According to OSHA, what type of warning sign should be posted in an area where an immediate hazard exists and where special precautions are necessary?

answer

Red, black and white "Danger" sign

question

All Laboratory instruments should:

answer

Be grounded or double insulated

question

If areas of the laboratory are designated as "clean" or "contaminated," it is appropriate for a technologist to:

answer

Touch a "contaminated" area phone with ungloved hands if hands are washed afterward

question

For fire safety and prevention:

answer

Hallways and corridors should be clear and free of obstruction at all times

question

What type of identification system does this symbol represent?

answer

Chemical hazardous materials

question

Flammable and combustible liquids in container > 5 gallons should be stored in an:

answer

Approved safety can

question

After receiving appropriate training, the first step in using a fire extinguisher it to:

answer

Pull the pin

question

To help prevent electrical fires in healthcare facilities:

answer

Use only UL or other safety- agency-rated electrical equipment

question

In addition to Keeping the load close to your body and tightening your abdominal muscles when lifting heavy boxes of supplies, it is important to bend at the:

answer

Knees and hips; lift with leg and buttocks

question

A fire occurs in the laboratory. The first course of action is to:

answer

Remove persons from immediate danger

question

An electrical equipment fire breaks out in the laboratory. Personnel have been removed from immediate danger, the alarm has been activated. What is the next action to be taken?

answer

Contain the fire by closing doors

question

Class C fires involves:

answer

Electrical equipment

question

A technologist splashed a corrosive chemical in his/ her eyes. To prevent permanent injury, the first action should be to:

answer

Use the eyewash station to flush eyes with water for 15 minutes

question

A technologist soiled concentrated hydrochloric acid in his/her clothing and skin, affecting a large portion of the body. After removing involved clothing, the next first aid treatment step would be to:

answer

Use emergency safety shower and flush body with water

question

An example of personal protective equipment is an

answer

Lab coat

question

Gloves worn in the laboratory for specimen processing must be removed and hands washed when:

answer

Answering the telephone in a designated "clean" are

question

Safety glasses, face shields or other eye and face protectors must be worn when:

answer

Working with caustic or toxic material

question

To prevent injury, a safe lab work practice is to:

answer

Secure long hair and jewelry

question

Safe handling and disposal of laboratory generate infectious waste require

answer

Separation of infectious and noninfectious waste

question

Which of the following is the best choice for decontaminating bench tops contaminated by the AIDS virus?

answer

Sodium hypochlorite bleach

question

The safest method of disposing of hypodermic needle is:

answer

Discard the needle in an impermeable container without other handling immediately after use

question

Precautions for health care workers dealing with patients or patient specimens include:

answer

Prompt cleaning of blood spill with a disinfectant solution such from patient

question

Infection rate is highest for laboratory professional exposed to blood and body fluids containing

answer

Hepatitis B

question

Which of the following forms of exposure places a technologist at the highest risk for infection with human immunodeficiency virus (HIV)?

answer

Needlestick

question

Which disinfectant in activates HIV and HBV

answer

Sodium hypochlorite

question

Filters generally used in biological safety cabinets to protect the laboratory worker from particulates and aerosols generated by microbiology manipulations are:

answer

HEPA

question

What is the single most effective method to prevent nosocomial spread of infection?

answer

Perform frequent and appropriate hand hygiene

question

Contaminated needles and syringes without safety self- sheathing device should be:

answer

Discarded directly into an appropriate sharps container

question

Use of "standard" (universal) precautions minimizes exposure to:

answer

Blood borne pathogens

question

After an accidental needle stick with a contaminated needle, the first action should be to:

answer

Thoroughly wash the wound with soap and water

question

What is the most likely mode of transmission for bloodborne pathogens in laboratory- acquired infections?

answer

Parenteral inoculation of blood

question

Which infectious agent is considered to be the primary occupational health hazard regarding transmission of bloodborne pathogens?

answer

Hepatitis B

question

When processing specimens for mycobacterial testing, what specific engineering control must be used?

answer

Biological safety cabinet

question

Hepatitis B vaccine is:

answer

Must be provided by the employer free of charge

question

When cleaning up a small (5 mL) blood spill on the counter-top. The first step after donning appropriate personal protective equipment is to:

answer

Absorb the spill with disposable absorbent material

question

The most effective disinfectant recommended for bloodborne pathogens is:

answer

Sodium hypochlorite

question

When processing patient blood specimens and handling other potentially infectious material, the best choice of glove is:

answer

Single use and disposable gloves

question

While processing patient specimens, a technologist splashes a few small drops of a bronchial wash specimen on his/ her gloves. The first action should be to:

answer

Change gloves and wash hands with antiseptic/soap and water

question

This symbol represents a:

answer

Biohazard

question

Which one of the following questions can be legally asked on an employment application?

answer

Are you a US citizen?

question

Legal pre-employment questions on an application are:

answer

Name and address of person to notify in case of emergency

question

Which if the following activities is not under the direction or control of the lab manager

answer

Military leave

question

The reliability of a test to be positive in the presence of the disease it was designed to detect is known as:

answer

Sensitivity

question

Which of the following parameters of a diagnostic test will vary with the prevalence of a given disease in a population?

answer

Accuracy

question

Package inserts may be used:

answer

As a reference in a procedure

question

190. The first step to be taken when attempting to repair a piece of electronic equipment is:

answer

Turn the instrument off

question

The methodology based on the amount of energy absorbed by a substance as a function of its concentration and using a specific source of the same material as the substance analyzed is:

answer

Atomic absorption spectrophotometry

question

Which if the following wavelengths is within the ultraviolet range

answer

340 nm

question

One means of checking a spectrophotometer wavelength calibration in the visible range is by using a:

answer

Didymium filter

question

In Spectrophotometry, the device that allows for a narrow band of wavelengths is the:

answer

Monochromator

question

The nanometer is a measurement of:

answer

Wavelength of radiant energy

question

In a double- beam photometer, the additional beam is used to:

answer

Correct the variations in light source intensity

question

Nephelometers measure light:

answer

Scattered at a right angle to the light path

question

A technologist is asked to write a procedure to measure the Evan blue concentration on a spectrophotometer. The technologist is given 4 standard solutions of Evan blue: Std A = 0.8mg/dL Std B = 1.6 mg/dL Std C = 2.4 mg/dL Std D =4.0 mg/dL The first step is to:

answer

Find the wavelength of the greatest absorbance for Evan blue

question

Which of the following is used to verify wavelength settings for narrow bandwidth Spectrophotometers?

answer

Holmium oxide glass

question

Which of the following statements about fluormetry is true?

answer

A compound fluoresces when it absorbs light at 1 wavelength and emits light at a second wavelength

question

The measurement of light scattered by particles in the sample is the principle of:

answer

Nephelometry

question

In a spectrophotometer, light of a specific wavelength is isolated from the light source by the:

answer

Monochromator

question

A mass spectrometer detects which property of ionized molecules?

answer

Mass to charge ratio

question

Chromatography is based on the principle of:

answer

Differential solubility

question

To be analyzed by gas liquid chromatography a compound must:

answer

Be volatile or made volatile

question

A true statement about column chromatography methods, including high- performance liquid and gas chromatography, is that it:

answer

Can be used for adsorption, partition, ion- exchange and steric-exclusion chromatography

question

In electrophorectic analysis, buffers:

answer

Act as carrier for ions

question

A ion- selective electrode (ISE) measures the:

answer

Activity of one ion much more than other ions present

question

The selectivity of an ion- selective electrode is determined by the:

answer

Properties of the membrane used

question

A centrifuge head has a diameter of 50 cm and spins at 3,000 RPM. What is the maximum achievable G force?

answer

2,700

question

In a centrifugal analyzer, centrifugal force is used to:

answer

Transfer liquids from the inner disc to the outer cuvette

question

Which of the following is the best guide to consistent centrifugation?

answer

Tachometer readings

question

A microassays, such as point- of-care methods, include

answer

Reduced sample volume

question

In the proper use of cobalt treated- anhydrous Cacl2, the desiccant should be:

answer

Changed when it turns pink

question

Enzyme- multiplied immunoassay techniques (EMIT) differ from all other types of enzyme immunoassays in that:

answer

No separation of bound and free antigen is required

question

Which of the following statements about immunoassays using enzyme labeled antibodies or antigens is correct?

answer

Quantitation of the label is less stable than an isotopic label

question

Which of the following immunoassay labels offer the greatest detection limit?

answer

Electrochemiluminescence

question

Several complaints have been received from parents of children in the pediatric wing about the anxiety that venipuncture causes their children. An informal staff meeting with phlebotomists reveals that they feel both parents and pediatric nurses are less than supportive and frequently make the task venipuncture in children worse with their own anxiety. The best course of action would be to:

answer

Prepare written pamphlets for parents and in- service education for nursing personnel

question

233. A major laboratory policy change that will affect a significant portion of the laboratory personnel is going to take place, in order to minimize the staff's resistance to this change, the supervisor should:

answer

Discuss the policy change in detail with all personnel concerned, well in advanced of implementation

question

When employees are going to be responsible for implementing a change in procedure or policy, the manager:

answer

Involve the employees in the decision- making process from the very beginning

question

The ability to make good decisions often depends on the use of logical sequence of steps that include:

answer

Defining problem, obtaining facts, considering options

question

In planning an instructional unit, the term "goal" has been defined as a:

answer

Major purpose or final desired results

question

Communication is enhanced by:

answer

A planned strategy that includes listening skills and ensuring an understanding with questions

question

In its guidelines, CAP stresses that communication must be effective and efficient. An effective component to enhance a multifaceted communication plan on the clinical laboratory is:

answer

Daily meetings with a question to foster conversation and focus the discussion

question

The use of security systems such as firewalls and data encryption for electronic transmission of patient data from a laboratory information system to a remote location are required for:

answer

HIPAA

question

CODE 128, ISBT 128, CODE 39 and Interleaved 2 of 5 symbologies are used by laboratory information systems to create which of the following?

answer

Barcode labels

question

A standard electronic file format recommended from transmitting data from the laboratory information systems to an electronic medical record is:

answer

Health Level 7

question

Validation of calculated test results performed by a laboratory information system must be performed:

answer

Biannually

question

The Hematology laboratory is evaluating new instruments for purchase. The supervisor wants to ensure that the instrument they select has bidirectional interface capabilities. The instrument specification necessary to meet the requirement is:

answer

Host query mode

question

The Chemistry department has requested that a new test be defined in the LIS to run on the existing analyzer. The new test set up is completed by the LIS coordinator. A few days later, the accessioning department receives a request for the new test but an error is displayed when they try to place the order. All other tests can be successfully ordered. The most likely cause of error is the:

answer

Database did not properly update with new test information

question

258. The process of testing and documenting changes made to a laboratory information system is known as:

answer

Validation

question

259. Performance of laboratory information system back-up procedures includes all of the following except:

answer

Shutting down the LIS and bringing it back up

BOC Study Guide 5th edition (Clinical Laboratory) – Flashcards

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