Ascp Laboratory Exam Questions And Answers Verified
100% Correct
How often should fire drills be conducted in the laboratory? - ANSWER At least yearly
Fire drills should be conducted at least annually in the laboratory.
Fire drill requirements are regulated by the local and state fire codes, accrediting
agencies, and insurance requirements for individual organizations. Generally, ALL staff
should participate at least ANNUALLY in fire exit drills. Some health care facilities will
adopt more frequent drills, as recommended by the National Fire Protection Association
(NFPA) standards. NFPA requires quarterly drills on every shift.
Application of molecular methods can include: - ANSWER - Infectious disease
identification
- Pharmacogenetics
- Tumor marker detection
All of the above
What is the Coefficient of Variation for a set of numbers when: ± 1 SD = 6.8, mean = 80,
and the range for ± 1 SD = 73.2 - 86.8? - ANSWER 8.5%
The formula for calculating the coeffecient of variation is as follows:
CV = Std. Dev / Mean
Then multiply by 100 to change units into a percentage.
In this question:
CV = 6.8/80 = 0.085
0.085 x 100 = 8.5%
A person with latent tuberculosis infection (LTBI) who is also infected with which one of
the following pathogens is at greatest risk for progression to TB disease? - ANSWER
HIV
,Molecular diagnostics utilizes blotting techniques to separate nucleic acids; northern
blotting separates RNA. - ANSWER True
The first step in a blotting technique is electrophoresis of the sample. In molecular
diagnostics, Southern blotting is detection of DNA, northern blotting is detection of RNA,
and western blotting is a special separation of proteins.
Which one of the following veins is not used for routine phlebotomy? -
ANSWER
Femoral vein
The preparation of a Levey-Jennings quality control chart for any constituent of serum
requires: - ANSWER a minimum of 20-30 analyses of control serum over a period of
20-30 days.
Periodic verification that a centrifuge is operating correctly is determined by: -
ANSWER Measuring RPM with a tachometer
Tachometer is used to validate the speed (RPMs) of a centrifuge.
"Standard precautions" is an approach to infection control that is designed to reduce
risk of transmission of microorganisms in hospitals and other health care settings.
Which of these statements best describes the intent of standard precautions? -
ANSWER All blood, tissue, body fluids, secretions (except sweat), and excretions
should be considered potentially infectious and health care workers should use
appropriate personal protective equipment and safe work practices when in direct
contact with patients or any specimen types.
Which of the following best describes random error? - ANSWER Results may be either
above or below the mean.
Which of the following would ensure positive patient identification prior to specimen
collection? - ANSWER Patient's full name and hospital or medical record number
A phlebotomist arrives in the blood draw area where a mother and her 3-year-old
toddler have been seated. Prior to performing the capillary blood collection on the child,
the phlebotomist asks the mother "Is this Amanda? " The mother says yes. The
phlebotomist then proceeds to cleanse the child's middle finger with alcohol and allows
the site to air dry before performing the finger puncture. The phebotomist punctures the
, side of the fleshy pad of the finger, wipes away the first drop, fills a lavender top
microcollection container, caps it, inverts it several times and lays it on the table. She
makes sure that the child's finger has stopped bleeding and then tells the mother that
they can go. She then labels the specimen.
For each of the following categories, choose whether the correct procedure was
followed. - ANSWER - Incorrect procedure was followed - Positive patient identification
- Incorrect procedure was followed - Patient interaction
- Correct Procedure was followed - Puncture site preparation
- Incorrect procedure was followed - Labeling of specimen
In order to ensure positive patient identification, every patient MUST be identified using
two patient identifiers. By suggesting the patient's name to the mother, the phlebotomist
actually did not use any patient identifiers that would positively identify the patient. The
phlebotomist did not explain the procedure and did not interact at all with the child.
Speaking to children in terms they can understand will lead to more positive patient
encounters.
The phlebotomist correctly cleansed the finger with alcohol and allowed the alcohol on
the puncture site to air dry.
The specimen was not labeled in the presence of the patient. Letting the patient leave
before labeling the specimen was an incorrect procedure.
Which of the following statements about the HBV vaccine is INCORRECT? -
ANSWER
Employers may require a fee to administer the vaccine.
Employers must offer the HBV vaccine free of charge to employees.
An analytical method with a low detection limit would: - ANSWER Measure low
concentrations of analytes
An analytical method able to detect low concentrations of an analyte would be
considered to have a low detection limit.
In order to correctly prepare a 4M solution of NaOH, how many grams need to be added
to 200mL of solution? (GMW=40) - ANSWER 32 grams
A general formula employed to determine the weight (in grams) of a substance to use to
make a certain volume with a desired normality (or molarity) is as follows:
100% Correct
How often should fire drills be conducted in the laboratory? - ANSWER At least yearly
Fire drills should be conducted at least annually in the laboratory.
Fire drill requirements are regulated by the local and state fire codes, accrediting
agencies, and insurance requirements for individual organizations. Generally, ALL staff
should participate at least ANNUALLY in fire exit drills. Some health care facilities will
adopt more frequent drills, as recommended by the National Fire Protection Association
(NFPA) standards. NFPA requires quarterly drills on every shift.
Application of molecular methods can include: - ANSWER - Infectious disease
identification
- Pharmacogenetics
- Tumor marker detection
All of the above
What is the Coefficient of Variation for a set of numbers when: ± 1 SD = 6.8, mean = 80,
and the range for ± 1 SD = 73.2 - 86.8? - ANSWER 8.5%
The formula for calculating the coeffecient of variation is as follows:
CV = Std. Dev / Mean
Then multiply by 100 to change units into a percentage.
In this question:
CV = 6.8/80 = 0.085
0.085 x 100 = 8.5%
A person with latent tuberculosis infection (LTBI) who is also infected with which one of
the following pathogens is at greatest risk for progression to TB disease? - ANSWER
HIV
,Molecular diagnostics utilizes blotting techniques to separate nucleic acids; northern
blotting separates RNA. - ANSWER True
The first step in a blotting technique is electrophoresis of the sample. In molecular
diagnostics, Southern blotting is detection of DNA, northern blotting is detection of RNA,
and western blotting is a special separation of proteins.
Which one of the following veins is not used for routine phlebotomy? -
ANSWER
Femoral vein
The preparation of a Levey-Jennings quality control chart for any constituent of serum
requires: - ANSWER a minimum of 20-30 analyses of control serum over a period of
20-30 days.
Periodic verification that a centrifuge is operating correctly is determined by: -
ANSWER Measuring RPM with a tachometer
Tachometer is used to validate the speed (RPMs) of a centrifuge.
"Standard precautions" is an approach to infection control that is designed to reduce
risk of transmission of microorganisms in hospitals and other health care settings.
Which of these statements best describes the intent of standard precautions? -
ANSWER All blood, tissue, body fluids, secretions (except sweat), and excretions
should be considered potentially infectious and health care workers should use
appropriate personal protective equipment and safe work practices when in direct
contact with patients or any specimen types.
Which of the following best describes random error? - ANSWER Results may be either
above or below the mean.
Which of the following would ensure positive patient identification prior to specimen
collection? - ANSWER Patient's full name and hospital or medical record number
A phlebotomist arrives in the blood draw area where a mother and her 3-year-old
toddler have been seated. Prior to performing the capillary blood collection on the child,
the phlebotomist asks the mother "Is this Amanda? " The mother says yes. The
phlebotomist then proceeds to cleanse the child's middle finger with alcohol and allows
the site to air dry before performing the finger puncture. The phebotomist punctures the
, side of the fleshy pad of the finger, wipes away the first drop, fills a lavender top
microcollection container, caps it, inverts it several times and lays it on the table. She
makes sure that the child's finger has stopped bleeding and then tells the mother that
they can go. She then labels the specimen.
For each of the following categories, choose whether the correct procedure was
followed. - ANSWER - Incorrect procedure was followed - Positive patient identification
- Incorrect procedure was followed - Patient interaction
- Correct Procedure was followed - Puncture site preparation
- Incorrect procedure was followed - Labeling of specimen
In order to ensure positive patient identification, every patient MUST be identified using
two patient identifiers. By suggesting the patient's name to the mother, the phlebotomist
actually did not use any patient identifiers that would positively identify the patient. The
phlebotomist did not explain the procedure and did not interact at all with the child.
Speaking to children in terms they can understand will lead to more positive patient
encounters.
The phlebotomist correctly cleansed the finger with alcohol and allowed the alcohol on
the puncture site to air dry.
The specimen was not labeled in the presence of the patient. Letting the patient leave
before labeling the specimen was an incorrect procedure.
Which of the following statements about the HBV vaccine is INCORRECT? -
ANSWER
Employers may require a fee to administer the vaccine.
Employers must offer the HBV vaccine free of charge to employees.
An analytical method with a low detection limit would: - ANSWER Measure low
concentrations of analytes
An analytical method able to detect low concentrations of an analyte would be
considered to have a low detection limit.
In order to correctly prepare a 4M solution of NaOH, how many grams need to be added
to 200mL of solution? (GMW=40) - ANSWER 32 grams
A general formula employed to determine the weight (in grams) of a substance to use to
make a certain volume with a desired normality (or molarity) is as follows:
