Additives
The additive in a light blue top tube is:
a) sodium heparin
b) sodium citrate
c) potassium oxalate
B- Sodium Citrate
The tube with a green stopper normally contains:
a) Heparin
b) EDTA
c) Oxalate
A-Heparin
the minimum length of time typically requited for blood collected in red top tubes to clot is:
a) 20 minutes
b) 30 minutes
c) 5 minutes
1- B- 30 minutes
What is the most important factor in choosing which gauge needle to use for venipuncture?
a) Age and weight of the pt
b) size and condition of the vein
c) number of tubes to be drawn
1- B- Size and condition of the vein
Damaged to red blood cells and release of hemoglobin into the serum or plasma is called:
a) hemoconcentration
b) hemolysis
c) hemostasis
B- Hemolysis
A rapid serum tube contains:
a) Citrate
b) EDTA
c) Thrombin
C) Thrombin
1) Which of the following tubes can be used to collect a serum specimen?
a) Light blue Top
b) SST
c) PST
1) SST
There is no additive in a red top tube, therefore initially:
a) the sample is whole blood
b) the sample yields serum
c) coagulation is prevented
a) the sample is whole blood
This is a 2-part question:
1) A type of needle used to collect blood from small or difficult veins is known as a:
a) syringe
b) winged infusion
c) multi-sample needle
2) At 0915, a 2-hour specimen for a glucose tolerance test (GTT) is due on the 3rd floor. at 0912, Stasis gets a request to pick up a routine, fasting glucose on the 5th floor. The best course of action for Stasis is:
a) Collect the GTT specimen first, and then the 5th floor specimen
b) Collect the 5th floor glucose and then the tolerance specimen.
c) If the pt is fasting, wait and then draw him on the next sweep
1)- B- winged infusion
2) A- Collect the GTT specimen first, and then the 5th floor specimen
the slanted tip of the needle that enters the vein is called the:
a) lumen
b) gauge
c) bevel
C- Bevel
This is a 2-part question:
1) According to CLSI standards, which of the tubes listed below is filled last when using a syringe?
a) EDTA
b) Heparin
c) Sodium citrate
2) Which additive is usually present in a tube with a lavender stopper?
a) Oxalate
b) heparin
c) EDTA
1) A-EDTA
2) C-EDTA
A yellow top tube containing SPS solution is sometimes used to collect a specimen for:
a) Paternity testing
b) Drug Screening
c) Blood cultures
C- Blood cultures
Name what the D-dimer test detects, the collection tube used, and the department that performs the test:
a) fibrin fragments, light blue, coagulation
b) hemoglobin, lavender, chemistry
c) coagulation factors, lavender, hematology
a Fibrin fragments, light blue, coagulation
this is a 2-part question:
1) it is important to fill anticoagulant tubes until the vacuum is exhausted to ensure that there is:
a) minimal tissue fluid contamination
b) A proper blood-to-additive ratio
c) enough blood to perform tests
2) What is proper order of draw with a multi-sample needle?
a) plain red, light blue, green, pink,
b) green, red, blue, pink,
c) light blue, red, green, purple
1) B- Proper blood-to-additive ratio
2) C- light blue, red, green, urple
Which needle gauge has the largest lumen?
a) 26
b) 18
c) 23
b- 18
This is a 2-part question:
1) EDTA prevents coagulation by:
a) inhibiting thrombin
b) binding calcium
c) releasing fibrinogen
2)When using a winged infusion blood collection set, if the first tube is an additive tube, it is important to collect a few milliliters of blood into a nonadditive tube first. Which of these would be affected?
a) EDTA, citrate, potassium oxalate
b) Citrate, EDTA, Sodium fluoride
c) Heparin, EDTA, Thixotropic Gel
1- C- Binding calcium
2- B- Citrate, EDTA, Sodium fluoride
Wassnae, a student phlebotomist, delivers a light blue top tube for a STAT pre-op PT and PTT. The student tells the specimen processor that she first put the blood into a red top tube but then realized his mistake and poured the blood into the blue top tube. What should the processor do?
a) Process both of the tests that are ordered
b) tell Wassnae to recollect the specimen
c) Call the coagulation department for advice
B) Tell Wassnae to recollect the specimen
Which tube is normally used to collect an CBC?
a) Green top
b) Purple top
c) yellow top
B0 Purple top
This is a 2-part question:
1) When tourniquets become soiled with blood, it is best to:
a) autoclave and use them.
b) throw them away
c) wash them in bleach
2) A tourniquet on too tight can cause
_________ and must be released within _____.
1) B-throw them away
2) petechia and 1 minute
The gel particles present in serum separator tubes:
a) enhance clotting
b) inhibiting glycolysis
c) prevent hemolysis
A- enhances clotting
This is a two-part question:
1) Iyonna must collect a routine hematology test, a coagulation test and a stat chemistry test. Which of the following are the tubes you would most likely use, listed in the correct order of draw?
a) Light blue-green top-purple top
b) green top-purple top-Royal Blue
c) red top-Light green top- purple top
2) Eaven checks the procedure manual for the specimen requirements of an unfamiliar test and determines that the test is performed on serum. which of the following tubes will produce a serum specimen?
a) red top
b) green top
c) purple top
3) The tube additive that is responsible for the most carryover problem is:
a) citrate phosphate dextrose
b) ethylenediaminetetraacetic acid
c) Thixotropic gel separator
1)- A- Light blue, green and purple top
2)- A -red top
3)- B- ethylenediaminetetraacetic acid
The tube additive that is responsible for the most carryover problems is:
a) citrate phosphate dextrose
b) ethylenediaminetetraacetic acid
c) sodium polyanethol sulfonate
B- Ethylenediaminetetraacetic acid
Heparin prevents blood from clotting by:
a) activating calcium
b) inhibiting thrombin
c) preserving thrombin
b- inhibiting thrombin
Which of the following could falsely elevate test results
a) drawing a normal vein with a butterfly
b) carryover of additives between tubes
c) Cleaning the site for over 30 seconds
B- Carryover of additives between tuves
A substance used to kill bacteria on surfaces and instruments is known as a:
a) sterilization
b) sanitation
c) disinfectant
Which of the following is classified as a disinfectant?
a) benzalkonium chloride
b) sodium hypochlorite
c) povidone-iodine
1-c- Disinfectant
2- B- Sodium hypoclorite