VERIFIED ANSWERS|ACTUAL COMPLETE EXAM|
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The three major phases of laboratory testing that a QA program should evaluate include
a. mean, standard deviation, and coefficient of variation.
b. pre-op, operative, and post-op.
c. pre-analytical, analytical, and post-analytical.
d. outpatient, inpatient, and non-patient. ✔Correct Answer-c. pre-analytical, analytical, and post-
analytical.
The process by which test results achieve the same high levels of accuracy and precision that can be
reproduced across measurement systems, laboratories and time is referred to as
a. laboratory process control.
b. laboratory calibration.
c. laboratory standardization.
d. laboratory verification. ✔Correct Answer-c. laboratory standardization.
What characteristics/functions do calibrators have?
a. They contain a known amount of analyte being tested.
b. They monitor the quality of reagents.
c. They monitor the quality of the sample.
d. They prevent equipment failure. ✔Correct Answer-a. They contain a known amount of analyte
being tested.
An abrupt demonstrated change in the mean is a
a. shift.
b. trend.
c. variance.
d. deviation. ✔Correct Answer-a. shift.
Qualitative examinations are those that
a. qualify for waived testing.
b. produce non-numerical results.
c. do not require quality control.
d. do not require proficiency testing. ✔Correct Answer-b. produce non-numerical results.
A property of a test that is used to describe its quality (such as accuracy, precision, sensitivity, etc.) is
a
a. performance characteristic.
b. performance enhancement.
c. performance verification.
,d. performance specification. ✔Correct Answer-a. performance characteristic
Under CLIA law, the process of testing and adjusting an instrument or test system to establish a
correlation between the measured response and the concentration or amount of the substance that
is being measuredby the test procedure is
a. calibration.
b. calibration verification.
c. a challenge.
d. quality control. ✔Correct Answer-a. calibration.
What agency determines the complexity of a lab test system?
a. CMS
b. FDA
c. CDC
d. OSHA ✔Correct Answer-b. FDA
Certain moderate complexity microscopy tests (such as urine sediment evaluation and skin scrapings)
commonly performed by healthcare providers in the office setting are classified as
a. provider moderate complexity tests.
b. provider exempt status.
c. provider personnel testing.
d. provider performed microscopy. ✔Correct Answer-d. provider performed microscopy.
Policies and procedures that are intended to promote the quality and validity of test data and ensure
the reliability and integrity of data generated by analytical laboratories is known as
a. CLIA Law.
b. Quality Assurance Plan (QAP).
c. Good Clinical Laboratory Practice (GCLP).
d. Total Quality Management (TQM). ✔Correct Answer-c. Good Clinical Laboratory Practice (GCLP).
Devices based on electrophoretic principles are used in the clinical laboratory to perform all of the
following except to
a. measure quantities of various proteins in plasma, urine, and CSF.
b. separate enzymes into their component isoenzymes.
c. identify antibodies.
d. measure molecules in a characteristic spectrum called the emission spectrum. ✔Correct Answer-
d. measure molecules in a characteristic spectrum called the emission spectrum.
The chemistry methodology that is based on the fact that substances of clinical interest selectively
absorb or emit electromagnetic energy at different wavelengths is
a. flourometry.
b. atomic absorption.
c. spectrophotometry.
d. photometry. ✔Correct Answer-c. spectrophotometry.
,Given %T, how is absorbance calculated?
a. log %T - 2.
b. log %T + 2.
c. 2 + log %T.
d. 2 - log %T. ✔Correct Answer-d. 2 - log %T.
Prohibiting recapping of needles is an example of
a. a workplace control.
b. an engineering control.
c. a best practice in the workplace.
d. a human resources requirement. ✔Correct Answer-a. a workplace control.
The majority of all centrifuge accidents result from
a. electrical malfunctions.
b. faulty mechanisms.
c. user error.
d. crowded work conditions. ✔Correct Answer-c. user error.
Material Safety Data Sheets (M.S.D.S.) are now called
a. Chemical Safety Sheets.
b. Safety Data System.
c. Material Data System.
d. Safety Data Sheets. ✔Correct Answer-d. Safety Data Sheets.
In order for a laboratory to handle TB sputum and TB materials, the laboratory must operate at a
a. biosafety level of 2+ or 3.
b. biosafety level 4.
c. location where air exchange is continuous.
d. location where fume hood exhausts are monitored daily. ✔Correct Answer-a. biosafety level of 2+
or 3.
What is the molarity of an unknown HCL solution with a specific gravity of 1.10 and an assay
percentage of 18.5%? (Atomic weights: H = 1.00794, Cl = 35.4527)
a. 203.5 M
b. 36.5 M
c. 5.6 M
d. 5.2 M ✔Correct Answer-c. 5.6 M
1.10 * 0.185 = 0.2035 g/mL
0.2035 g/mL * 1000 = 203.5 g/L
Molarity = (g/L) / molecular weight (MW)
203..5 = 5.6 M
MCV = HCT * 10/(?)
, a. MCHC
b. MCV
c. RBC
d. MCH ✔Correct Answer-c. RBC
A substage lens of the microscope that focuses light on the slide specimen is the
a. condenser.
b. aperture.
c. C-mount.
d. diaphragm. ✔Correct Answer-a. condenser.
The magnification of a microscope is determined by the
a. high power objective multiplied by the low power objective.
b. thickness of the condenser.
c. powers of the eyepiece and objective.
d. fine focus adjustment. ✔Correct Answer-c. powers of the eyepiece and objective.
You have just completed morning rounds when you realize that you have an unlabeled tube in your
tray. You are certain you know what patient the tube belongs to. How should you proceed?
a. After sorting the tubes you see what specimen is missing, discard the unlabeled tube and go
recollect the specimen.
b. After sorting the tubes, you see what specimen is missing so label your unlabeled tube with that
patient's information.
c. Discard the tube and hope know one realizes there is a missing specimen.
d. Discard all your tubes and redraw everyone to make sure all the specimens are correct. ✔Correct
Answer-a. After sorting the tubes you see what specimen is missing, discard the unlabeled tube and
go recollect the specimen.
You are working in receiving and receive urine specimens with the following labels. Select the label
that contains the required labeling elements for a primary specimen.
a. Name: Jane Deer<br>DOB: 3-6-3<br>Room #: 123<br>Collect time/date: 0550 7/6/13
b. Name: Deer, JR<br>DOB: 3/6/2003<br>Location: clinic<br>Collect time/date: 0550 7/6/13
c. Name: Deer, Jane Ray<br>DOB: 3/6/2003<br>Hospital number: 234345<br>Collect time/date:
0550 7/6/2013
d. Name: Deer, Jane<br>DOB: 3/6/2003<br>Hospital number:<br>Collect time/date: 0500 7/6/2013
✔Correct Answer-c. Name: Deer, Jane Ray<br>DOB: 3/6/2003<br>Hospital number:
234345<br>Collect time/date: 0550 7/6/2013
A gel separator tube is received with orders for a direct antiglobulin test (DAT) and serum Glucose
test. How should this request be handled?
a. Centrifuge the specimen and aliquot some serum into another tube for chemistry. Then send the
tube to blood bank for the DAT.
b. Centrifuge the specimen once it has clotted and deliver it to chemistry for the serum glucose test.
The DAT will need to be recollected because this is not the appropriate specimen.
c. Have both tests recollected since this is not an appropriate specimen for either test.