Complete Answers NEW EDITION
Which of the following test(s) are required to be performed by law on all newborns in the
United States? - Ans PKU
Why must a phlebotomist discard the first sample drawn from a heparin or saline lock? - Ans
Poten#al dilu#on of the specimen
A first-#me blood donor wants to know how much blood will be taken during the procedure.
The phlebotomist states that the average volume of a "unit" of blood is: - Ans 450ml
The dona#on of blood by a pa#ent for his or her own use at a later #me is known as: - Ans
Autologous dona#on
The phlebotomist has just completed the collec#on of a specimen for cold agglu#nins. What
special collec#on and/or transport measures must be taken by the phlebotomist a.er collec#on
of this sample? - Ans The specimen must be collected in a prewarmed tube
Which of the following sample collec#ons does not require transporta#on of the sample to the
laboratory in a chilled environment? - Ans Vitamin A
The phlebotomist has just collected a specimen that needs to be protected from light during
transporta#on to the laboratory. Which of the following specimens did the phlebotomist
collect? - Ans Beta-carotene
,Which of the following samples is not collected for use as evidence in a legal proceeding? - Ans
PKU tes#ng
The phlebotomist is called to the ER to pick up forensic specimens for a sexual assault. The
most important concept the phlebotomist must adhere to in handling forensic specimens in
proper: - Ans Chain of custody
Which of the following criteria is evaluated to determine if a peripheral blood smear is of
adequate quality? - Ans The slide has a feathered edge, the slide has no holes, the slide has no
streaks (all of the above)
Hemolysis is defined as: - Ans Destruc#on of red blood cells
The phlebotomist has received an order to draw a specimen from a pa#ent known to have a
cold agglu#nin. The test that has been ordered requires that an EDTA whole blood tube be
collected in a prewarmed tube and remain warm un#l tes#ng. The test ordered is a: - Ans CBC
The phlebotomist has an order to draw all of the following tests. Which one of the test samples
must be protected from light? - Ans Vitamin B12
Who regulates the use of personal protec#ve equipment for laboratory specimen processing? -
Ans OSHA
You are responsible for cataloging the specimens being delivered by the courier to the
laboratory. Which of the following is a unique iden#fying number that you will use for
cataloging samples in the laboratory? - Ans Accession number
You are called to assist in central processing. The specimens that you are given to process
require the separa#on of small por#ons of plasma or serum from cellular elements to individual
containers called: - Ans Aliquots
, The phlebotomist has drawn a series of plain red top (no addi#ves) for immunologic tes#ng. At
room temperature, complete clo<ng of these tubes will occur in what #me frame? - Ans 30 to
45 minutes
Which of the following terms describes the quan#ta#ve methods used to monitor the quality of
procedures? - Ans Quality control
Pa#ent prepara#on, collec#on, and specimen transporta#on protocols are all part of which of
the following? - Ans Quality assurance
The phlebotomist receives a request to perform a sweat chloride test on a 2-year-old child and
wants to refresh her memory before performing the test. The phlebotomist consults the ______
before going to the child's room. - Ans Procedure manual
As a phlebotomist you are responsible for monitoring and controlling variables that impact your
scope of prac#ce in the collec#on of quality specimens. Which of the following variables is the
phlebotomist most responsible for controlling? - Ans Preanaly#cal variables
Which of the following is not a preanaly#cal variable? - Ans Specimen analysis
When should the phlebotomist wash his or her hands? - Ans When entering and leaving the
pa#ent's room
A pa#ent filed a civil suit against the phlebotomist. In order for the phlebotomist to be found
guilty of malprac#ce, which of the following must be proven by the plain#ff? - Ans Duty,
derelic#on, injury, direct cause
Which of the following defines a set of standards and procedures for the protec#on of privacy
of health informa#on? - Ans HIPAA
, Who is legally responsible for injuries resul#ng from a venipuncture? - Ans The phlebotomist
Before proceeding with any collec#on procedure the phlebotomist should always: - Ans
Obtain a posi#ve informed consent
What does the phrase "point of care" mean? - Ans Performance of the test immediately a.er
obtaining the sample usually in the same room
All of the following are advantages of POC except: - Ans Increased recovery #me
Which of the following point-of-care test may be used to assess the presence of anemia? - Ans
Hematocrit and Hemoglobin
You are assigned to cover the open-heart recovery unit and will be monitoring heparin therapy
on several pa#ents. Which of the following POC test will you perform to monitor heparin
therapy? - Ans PT and APTT
The most commonly performed POCT is the_____? - Ans Glucose
Hematocrit is a determina#on of which of the following? - Ans Packed red cell volume
Which of the following waived test would be used to monitor a diabe#c pa#ent? - Ans Glucose
Which of the following tubes would be the specimen of choice used to collect a sample for
hematocrit tes#ng? - Ans EDTA