The Specimen
Which specimen below will take longer than normal to clot?
a- Specimen from a pt on anticoagulant therapy
b- Chilled specimens that is from an outpatient clinic
c- Specimen from a pt with a high WBC count
d- All of the answers are correct
e- Only A and C are correct
D- All of the answers are correct
Results of a bilirubin test specimen exposed to light for an hour can be decreased up to:
a) 25%
b) 65%
c) 50%
d) 10%
C- 50%
A blood specimen aliquot can remain at room temperature for no longer than:
a) 1 hour
b) 6 hours
c) 2 hours
d) 8 hours
D- 8 hours
According to CLSI, which test is negatively affected by tube system transportation?
a) Creatine
b) Albumin
c) Potassium
d) Uric Acid
1) C- Potassium
Most POC analyzers are interface-capable, but the decision to do so is based on the:
a) number of analyzers that are available
b) type of POCT instrument being used
c) cost of the test that is being performed
d) impact the test results has on the pt
D) Impact the test results has on the pt.
2- Part Questions:
1- a specimen collected in this tube is not affected if the tube is underfilled:
a- Red Top Tube
b- Blue Top Tube
c- Green Top Tube
d- Purple Top Tube
2- Which tube above is sent to serology and used for an MMR test.
1- a- Red Top tube
2- a red top tube
2- Part Question:
1- Which specimen should not be centrifuged?
a) Protime
b) CBC
c) Vitamin B12
d) Glucose
2) Which of the following specimens can be centrifuged immediately?
a) Bilirubin collected in red-top- tube
b) CBC collected in a purple-top tube
c) Electrolytes collected in a PST
d) Creatinine collected in an SST
1- B- CBC
2) c- Electrolytes collected in a PST
2- part questions:
1) which of the tube below, does blood once obtained, clots within 5 minutes?
a) PST
b) SPS
c) RST
d) SST
2)As a generic rule, serum or plasma should e removed from the cells within:
a) 90 minutes
b) 30 minutes
c) 120 minutes
d) 60 minutes
1) C- RST
2) C- 120 minutes
2 Part question:
1) To "balance" a centrifuge means to:
a) all of the answers are correct
b) place it on a sturdy countertop with a level and motionless surface
c) put tubes of equal size and amount of specimen opposite each other
d) fill it completely with tubes that are all of the same specimen type
2) Which of the tubes below would be placed in the centrifuged?
a) SST tube
b) EDTA tube
c) Sodium citrate tube
d) Sodium Fluoride
1- C- put tubes of equal size and amount of specimen opposite each other
2) A- SST tube
2- part question:
1) The cursor indicates the ____ point for input:
a) ending
b) location
c) mnemonic
d) starting
2) The word LIS stands for:
a) Lab informative system
b) laboratory informative system
c) Laboratory information system
d) Laboratory information security
1) D- starting (pg. 438)
2) C- laboratory information system
3-Part Question:
1- Which federal agencies regulate the transporting of biological specimens off-site?
a- all of the choices below are correct
b- CLIA & EPA
c- DOT & IATA
d- EPA & CLSI
e- None of the above OSHA regulates.
2- Glycolysis can falsely lower glucose values at a rate of up to:
a- 3% to 5% per hour
b- 6% to 10% per hour
c- 1% to 3% per hour
d- 5% to 7% per hour
3- You are drawing a FBS what color tube/additive will you use to obtain this specimen?
a- Light Blue- Sodium Citrate Tube
b- Dark Green- Sodium Heparin
c- Lavender- EDTA
d- Gray- Sodium Fluoride/Potassium Oxalate
1- C- DOT & IATA
2- D- 5% to 7% per hour
3-D- Gray Top Sodium Fluoride/ Potassium Oxalate
3- Part Question:
1- Which of the following temperature is acceptable for a specimen that requires transportation and handling at room temperature?
a) -20 degree C
b) 8 Degree C
c) 25 degree C
d) 37 degree C
2) Which specimen below does not needs to be protected from light?
a) Beta-carotene
b) Folate
c) Parathyroid hormone (PTH)
d) Vitamin C
3) Referring to the above question. What is the tube, the additive in the tube and what department will process the correct answer from question #2
a) lavender-EDTA-Hematology
b) Sodium Citrate, Light Blue, Coagulation Department
c) Lavender, EDTA- Chemistry
d) Gold/Tiger top/SST, Chemistry
1) C- 25 degree C
2) C- Parathyroid hormone (PTH)
3) D- SST/Gold/Tiger Top- chemistry Dept.
2- Part Question:
1) Which of the following specimens would be acceptable for testing?
a) CBC collected in a lavender-top tube
b) specimen lacking an identification label
c) Protime specimen in a partially filled tube
d) Potassium specimen that is hemolyzed
2) A splash of serum released when the stopper of a centrifuged serum separator tube is removed. What is the most likely reason?
a) the tube was tilted after it was centrifuged
b) the stopper was removed by a robotic arm
c) the centrifugation time was too long
d) the separator gel worked incorrectly.
1) A- CBC collected in a lavender top tube
2) A- the tube was tilted after it was centrifuged
3-part Question:
1) When performing a heel stick, you are to grasp the foot gently but firmly with your nondominant hand. Encircle the heel by wrapping your ______ finger round the arch and your ___ around the bottom.
a) ring and pinky
b) index and thumb
c) ring and index
d) ring and index
2) When holding a toddler's fingers during a capillary puncture, it is best to grasp ____ of the child's fingers.
a) 2-3 fingers
b) 4 fingers
c) 3-4 fingers
d) 2 fingers and the thumb
3) Needle bevel against the lower vein wall prevents_____
a) hemolysis
b) blood flow
c) hematoma
d) collapsed vein
1) B- Index and thumb
2) C-3-4 fingers (pg. 364)
3) B- blood flow (pg. 343)
2-part question:
1) POCT testing is becoming more and more prevalent. The systems at many hospitals, use what is called a ___ which allows the POCT, ex. ACCU check to upload the pt's results right into the pt's chart.
a) interfacing
b) middleware
c) EHR
d) EMR
2) TDM is being performed, in order to obtain the minimum therapeutic range. Which level is the provider looking for.
a) trough level
b) toxic level
c) peak level
d) forensic
1) B- middleware (pb. 434)
2) A- trough level (pg. 412)
3- Part Questi8ons:
1- Of which of the specimen test below, should not be chilled:
a- Ammonia
b- Lactic Acid
c- Potassium
d- Homocysteine
2- A serum aliquot has a fibrin clot in it. The most likely cause is that the specimen was:
a) hemolyzed from improper transportation
b) from a pt with a high platelet count
c) centrifuged before clotting process was complete
d) spun too long with the tube stopper off
3- After obtaining a specimen for a cold agglutinin test, the blood must be transported:
a) protected from light
b) at body temperature
c) frozen
d) as a STAT test
1- C- Potassium
2- C Centrifuged before clotting process was complete
B- Body temperature
3- Part Question:
1- When processing an ESR must be tested within ___ hours, at room temperature.
a) 3 hours
b) 12 hours
c) 4 hours
d) 2 hours
2) EDTA specimens for reticulocyte counts are stable for up to _____ hours if the specimen is refrigerated.
a) 15 hours
b) 36 hours
c) 48 hours
d) 72 hours
3) Which one below would not be found co9mmonly on a Panic Value Lists:
a) Hgb
b) PT/INR
c) Bilirubin
d) FTA-ABS
1) C- 4 hours (pg. 444)
2) D- 72 hours
3) D- FTA-ABS
2- Part Question:
1) Which of the following would be correct procedure for thawing a frozen sample?
a) warm it at 25`C; invert 10-20 times after thawing
b) thaw it in the refrigerator; mix it when thawed
c) warm in at 37`C; mixing it when ready for testing
d) Heat in a warm water bath; invert it occasionally
2) Which one of the tests below needs a cooling rate during transportation?
a) cold agglutinin
b) Beta-carotene
c) Electrolytes
d) Homocysteine
1) A warm it at 25`C; invert 10-20 times after thawing
2) D) Homocysteine
2-part question:
1) Creatinine clearance is a measure of:
a) glucose metabolism
b) kidney function
c) liver function
d) muscular activity
2) When performing a capillary test with many tests, what is the correct order of draw. Choose the correct order for a capillary stick:
a) serum specimens, EDTA, Blood gas and other additives
b) EDTA, blood gas, serum and other additives specimens
c) Serum other additives specimens, EDTA and blood gas specimens
d) blood gas specimens, EDTA specimens, other additive specimens and serum specimens
1) B- Kidney function
2) D blood gas specimens, EDTA, specimens, other additive specimens and serum specimens (pg. 359)
2- part:
1) you are about to perform a LTT. What test must you perform prior to performing the LTT?
a) ACT
b) GTT
c) PPT
d) FBS
2) You are performing a QuantiFERON TB Gold test. What are the 4 tubes that you will be using:
a) red top, purple top, green top and Light blue
b) light green, Dark Green, Purple and gray
c) gray top, green top, yellow top and purple top
d) Light blue, Red, Gold and Gray
1) B- GTT
2) C) gray top, green top, yellow top and purple top
3- Part Question
1- Latent fibrin formation in serum can result from:
a) a klong delay before centrifugation
b) incomplete clotting when centrifuged
c) a centrifuge speed that is too high
d) Gross hemolysis of the specimen
2) Which of the following test specimens can be analyzed without being centrifuged?
a) Hgb A1c in an EDTA tube
b) STAT Potassium in a heparin gel tube
c) Cholesterol in a gel barrier tube
d) Bilirubin in an amber microtube
3- In what department would the following specimen be processed: RPR, HIV and Hep screening.
a) Coagulation
b) Hematology
c) Chemistry
d) Serology
1- B- incomplete clotting when centrifuged
2- A- Hgb A1c in an EDTA tube
3- D- Serology
3- Part Questions:
1- After arriving in the lab, all specime3ns are immediately:
a) refrigerated until processed
b) uploaded to testing instruments
c) logged in or accessioned
d) centrifuged to stop glycolysis
2) Which tube is used to stabilize glucose specimens:
a) lavender- EDTA
b) Gray- Sodium Fluoride
c) SST- Tiger top
d) Green-Heparin
3) Which test below is a test that is either an ice slurry/cooling rack:
a) Bilirubin
b) Folate
c) Lactic Acid
d) Vitamin A
1) C- logged in or accessioned
2) B- Gray-Sodium Fluoride
3) C- Lactic Acid
2 Part Question:
1) Inadequate mixing of an anticoagulant tube can lead to:
a) cell decomposition
b) extreme hemolysis
c) microclot formation
d) immediate glycolysis
2) All are a part of the preexamination error except
a) agitation-induced hemolysis
b) inverting an SST tube 5 times after completing the sticking
c) nonsterile site preparation
d) strenuous exercise
1) c- microclot formation
2) B- inverting an SST tube 5 times after completing the stick
2 Questions:
1) There are several links in the chain of infection. However, what is the 3rd link in the chain.
a) Exit pathway
b) Reservoir
c) Infectious Agent
d) Means of Transmission
2) Reference values are different in capillary blood draw. The values of Hct on a 1-day old newborns are known to be ____ higher, than venous blood values
a) 10%
b) 5%
c) 12%
d) 25%
1) A- Exit Pathway
2) C-12% (pg. 357)
1-part question:
1) A Panic value is a:
a) test control that is out of range
b) result that cannot be repeated
c) sign of instrument malfunction and
d) significant abnormal test result
1) D- significant abnormal test result