Of the following tests, which is most likely to result in fatal consequences if the patient is misidentified?

a) blood cultures

b) drug screen

c) postprandial glucose

d) type and crossmatch

Which test requires strict skin antisepsis procedures before specimen collection?

a) blood cultures

b) blood urea nitrogen

c) CBC

d) type and crossmatch

What type of additive is recommended for collecting an ethanol test specimen?

a) EDTA

b) no additive

c) sodium citrate

d) sodium flourite

When performing a GTT, the timing should begin...

a) as soon as the patient finishes the drink

b) one-half hour after the drink is finished

c) right after the patient arrives in the lab

d) when the fasting specimen is collected

At what intervals is the blood blotted during a bleeding time test?

a) 15 seconds

b) 20 seconds

c) 30 seconds

d) 45 seconds

To prevent introducing a contaminated substance into a trace-element collection tube, it is suggested that the phlebotomist...

a) collect the trace-element tube last in the order of draw

b) draw it by itself using a syringe or evacuated tube system

c) use a syringe and transfer the blood into the royal blue tube last

d) use only a royal blue short-draw tube with heparin or EDTA

When collecting a blood culture specimen directly from a butterfly into a blood culture bottles, which should be filled first?

a) aerobic

b) anaerobic

c) either aerobic or anaerobic, it does not matter

d) neither, a discard tube must be drawn first

Which of the following tests may require special "chain of custody" documentation when collected?

a) blood culture

b) crossmatch

c) drug screen

d) TDM

Identify the condition in which a unit of blood is withdrawn from a patient as treatment.

a) acute leukemia

b) autologous donation

c) hemochromatosis

d) Rh incompatibility

Which of the following tubes can be used to collect blood for a type and crossmatch?

a) ETS gray top

b) Pink top EDTA tube \

c) royal blue top

d) serum separator tube

An autologous blood transfusion is a transfusion of blood...

a) directly from the donor to the patient

b) donated by the patient for the patient

c) donated by a compatible relative

d) given by an anonymous donor

The most critical aspect of blood culture collection is...

a) amount of specimen

b) skin antisepsis

c) specimen handling

d) the needle guage

This test requires a specimen with a 9:1 ratio of blood to anticoagulant.

a) ethanol

b) glycohemoglobin
c) prothrombin time

d) red cell count

The hormone detected in a positive urine pregnancy test is...

a) ACTH

b) GH

c) HCG

d) TSH

Tests that can be performed using a special PACT instrument or test kits include...

a) arterial blood gas

b) glucose

c) occult blood

d) all of the answers are correct

TDM is used by physicians to...

a) determine a beneficial drug dosage for a patient

b) maintain "peak" levels of a drug in a patients system

c) maintain "trough" levels of a drug in a patient's system

d) screen inpatients for abuse of prescriptive drugs

A 2-hour postrandial specimen should be drawn...

a) 2 hours before patient arrives for the test

b) 2 hours after patient arrives for the test

c) 2 hours before the patient has a meal

d) 2 hours after the patient has had a meal

A specimen would most likely be accepted for testing despite this problem?

a) expired evacuated tube

b) incomplete identification

c) no phlebotomist initials

d) quantity not sufficient

Which of the following is used by the laboratory to identify a specimen throughout the testing process?

a) accession number

b) hospital number

c) mnemonic code

d) password ID

Which of the following would not be considered a preanalytical error?

a) failing to mix an additive tube

b) mislabeling an aliquot tube

c) misreporting patient results

d) using the wrong order of draw

Which of the following specimens needs to be chilled?

a) ammonia

b) bilirubin

c) cold agglutinin

d) serum protein

This is a source of preanalytical error that occurs before specimen collection?

a) dehydrated patient

b) misidentified patient

c) mislabeled specimen

d) wrong collection time

This organization develops standards for specimen handling and processing.

a) CDC

b) CLIA

c) CLSI

d) FDA

According to CLSI, the maximum time limit for separating serum or plasma from cells is...

a) 15 minutes from the time of collection

b) 30 minutes from the time of collection

c) 1.0 hours from the time of collection

d) 2.0 hours from the time of collection

Which of the following specimens are least likely to require special handling?

a) bilirubin and serum folate

b) cholesterol and uric acid

c) gastrin and lactic acid

d) homocysteine and renin

Which statement describes proper centrifuge operation?

a) centrifuge serum specimens before they start to form noticeable clots

b) never centrifuge both serum and plasma specimens in the same centrifuge

c) place tubes of equal size and volume opposite one another for balance

d) remove evacuated tube stoppers before placing them in the centrifuge

Which of the following collection circumstances is least likely to result in delayed clotting of a serum sample?

a) collection was difficult, hemolyzing red cells

b) patient has an elevated white blood cell count

c) patient is taking an anticoagulant medication

d) specimen is chilled soon after being collected

Which specimen can be centrifuged immediately upon arrival in specimen processing?

a) blood culture in an SPS tube

b) calcium in a green top tube

c) CBC in a lavender stopper tube

d) creatinine in an SST tube

Which of the following represents improper aliquot preparation?

a) removing the stopper behind a splash shield

b) carefully pouring the contents into the aliquot tube

c) covering or capping the aliquot tube immediately

d) none of the above

An example of preanalytical error happening during specimen processing is...

a) faulty collection technique

b) inadequate centrifugation

c) insufficient specimen

d) patient stress and anxiety