Test Four Flashcards
Of the following tests, which is MOST likely to result in fatal consequences if the patient is misidentified?
Blood cultures
Drug screens
Postprandial glucose
Type and crossmatch
Type and crossmatch
Which test requires strict skin antisepsis procedures before specimen collection?
Blood culture
All of the following are included in the DOT’s 10 Steps to Collection Site Security and Integrity EXPECT…
ensure that video monitoring equipment is working during specimen collection.
What type of additive is recommended for collecting an ethanol test specimen?
Sodium Fluoride
When performing a GTT, the timing should begin…
as soon as the patient finishes the drink.
Which test is used to monitor heparin therapy?
ACT
According to CLSI, _________is the recommended blood culture site skin disinfectant for infants 2 months and older.
Chlorhexidine gluconate
To prevent introducing a contaminating substance into a trace- element collection, it is suggested that the phlebotomist…
Draw it by itself using a syringe or evacuated tube system.
All POC glucose analyzers approved for hospitals use have which of the following in common?
All options are correct.
When collecting a blood culture specimens directly from a butterfly into blood culture bottles, which should be filled first?
Aerobic
A chain of custody is…
a special protocol used when collecting forensic specimens
For which condition is a unit of blood withdrawn from a patient as treatment…
Hemochromatosis
Which of hte following tubes can be used to collect blood for a type and crossmatch?
ETS gray top
PInk top
Royal blue top
Gel barrier
Pink top
An autologous blood transfusion is a transfusion of blood..
donated by the patient for the patient
The most critical aspect of blood culture collection is ….
skin antisepsis
Which test requires a specimen with a 9:1 ratio of blood to anticoagulant?
Prothrombin time
The hormone detected in a positive urine pregnancy test is….
HCG
ARD or FAN blood culture bottles
remove any antibiotics that are in the blood
TDM is used by physicians to…
Determined a beneficial drug dosage for a patient
A 2-hour postprandial specimen should be drawn
2 hours after the patient finishes eating a meal
The preferred sample for parentage testing is..
buccal swab.
Which on of the following tests could be collected using a tube other than a trace element-free tube?
Sodium
The CAP requires QC for many waived tests to be performed…
when the test manufacturer specifies
A noninvasive transcutaneous method is available to measure
neonatal bilirubin
The accumulation of _____ in the blood can cause metabolic acidosis.
Lactate
What is the recommended disinfectant for blood culture sites in infants 2 months and older?
Chlorhexidine gluconate
Which one of the following statements about autologous donations is NOT true?
Unused autologous units may be used by other patients
Everyone who performs POCT in a clinical setting must meet the ________ requirements for testing and the _________ guidelines for specimen handling.
CLSI
OSHA
A condition in which a patient has a high blood glucose level is known as _______.
hyperglycemia
Tan-top tubes containing K2ETDA can be used to collect specimens for _________
lead analysis
The process of entering a password and gaining access to a computer is called …
Logging on
A specimen would most likely be accepted for testing despite which o the following problems?
Expired evacuated tube
Incomplete identification
NO phlebotomist initials
Quantity not sufficient
No phlebotomist initials
______ us the permanent computer memory that instructs the computer to carry out user-requested operations.
ROM
Which of the following is used by the laboratory to identify a specimen throughout the testing process?
Accession number
A barcode is a ….
Series of bars and spaces representing numbers or letters
A pneumatic tube is a …
pressurized air transportation system.
Applications software called “middleware”…
Accepts data downloaded from POC instruments
An example of a preanalytical error happening during specimen processing is
inadequate centrifugation
Use of one of the newer technologies, RFID, is emerging in healthcare as a…
method of specimen identification
Transporting blood specimens with the stopper up has nothing to do with…
Maintaining the sterility of the sample
Which of hte following would NOT be considered a preanalytical error?
Misreporting patient results
Which of these is a source of preanalytical error that occurs before specimen collection?
Dehydrated patient
Which of the following specimens needs to be chilled?
Ammonia
Which organization develops standards for specimen handling and processing?
CLSI
According to CLSI, the maximum time limit for separating serum or plasma from cells is
2.0 hours from the time of collection
Which of the following specimens are least likely to require special handling?
Cholesterol and uric acid
Which statement describes proper centrifuge operation?
Place tubes of equal size and volume opposite one another for balance
Which of the following collection circumstances is LEAST likely to result in delayed clotting of a serum sample?
Collection was difficult, hemolyzing red cells.
Which specimen can be centrifuged immediately upon arrival in specimen processing?
calcium in a green top tube
Which of the following represents improper aliquot preparation?
Carefully pouring the contents into the aliquot tube
Which of the following activities is least likely to take place in central processing or triage?
analysis and reporting
What type of specimens must be processed before routine specimens?
All options are correct
Which of the following is the best way to prepare routine blood specimen tubes for transportation to an offsite lab?
Seal the tubes in a plastic bag
Clinical and Laboratory Standards INstitute and Occupational Safety and Health Administration guidelines do NOT require specimen transport bags to have
shock-resistance features.
Critical values( test values that are considered life threatening) are also called…
panic values
A test sample that is not recommended to be sent in a pneumatic tube is
serum potassium
The handling of a specimen before it is actually tested is part of the _________ phase.
preanalytical
A specimen arrives with less volume than is needed for the test. It will be noted why the specimen was rejected by using the abbreviation______.
QNS
According to CLSI, __________tubes should be placed upright as soon as they are mixed.
gel barrier
Laboratory inspection for compliance with shipping regulation and imposing severe penalties for noncompliance can be done by the U.S. _________.
DOT
