Additives
The additive in a light blue top tube is:
a) Sodium Oxalate
b) Sodium Heparin
c) Sodium Citrate
d) Sodium Dextrose
C- Sodium Citrate
Which tube is used to obtain an electrolyte?
a) red
b) mint green
c) dark green
d) gray
1) B- Mint Green
Damage to red blood cells and release of hemoglobin into the serum or plasma is called:
a) hemophilia
b) hemolysis
c) hemostasis
d) hemoconcentration
B- hemolysis
1) The tests performed in the following department are typically collected in a tube with a light-blue stopper?
a) chemistry
b) coagulation
c) hematology
d) microbiology
1) B- Coagulation
What two identifiers should be used when drawing a blood specimen?
a) SS#, DOB
b) DOB, Name
c) Name, Address
d) SS#, Name
B- DOB, Name
1) According to CLSI the serology tube has which additive:
a) heparin
b) CRP
c) Nothing
d) EDTA
2) According to CLSI standards, which of the following tubes (additives) listed below is filled last when using a syringe:
a) Heparin
b) EDTA
c) Sodium Citrate
d) Sterile SPS
1) C- Nothing
2) B- EDTA
1) Ms. Limage has to collect a routine hematology test, a coagulation test and a stat chemistry test. What is the tubes she should use, in the correct order of draw?
a) Green-top, purple-top, royal-blue-top
b) Light-blue top, Green-top, purple-top
c) Orange-top, lavender-top, green-top
d) Red-top, light-green-top, purple-top
2) Which tube is normally used to collect an RH/ABO?
a) Red
b) Purple
c) Pink
d) Light Blue
1) B- Light-blue top, green-top, purple-top
2) C- Pink
Tiana delivers a light blue top tube for a STAT preop PT and PTT. The Tiana tells the specimen processor that she first put the blood into a red top tube but then realized her 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) reject the PT specimen but not the PTT
c) tell Tiana to recollect the specimen
d) Call the coagulation department for advice
2) Asha is performing a venipuncture; the student she is training ask her which of the tubes she is drawing causes more carryover problems:
a) SST tubes
b) EDTA tubes
c) Oxalate tubes
d) Citrate tubes
1) C- Tell Tiana to recollect the specimen
2) B- EDTA (pg. 247)
1) A yellow top tube containing SPS solution is sometimes used to collect a specimen for:
a) paternity testing
b) HLA typing
c) drug screening
d) blood cultures
2) Heparin prevents blood from clotting by:
a) activating calcium
b) binding calcium
c) inhibiting thrombin
d) preserving thrombin
1) D- Blood cultures
2) C- Inhibiting thrombin
1) At 0915, a 2-hour specimen for a glucose tolerance test (GTT) is due on the 3rd floor. At 0912, you get a request to pick up a routine fasting glucose on the 5th floor. What is the best course for Amanda to take:
a) If the fasting pt can wait, draw him on the next sweep.
b) collect the 5th floor glucose and then the tolerance specimen
c) collect the GTT specimen first, and then the 5th floor specimen
d) ask the pt's nurse to reschedule the fasting glucose
2) Which of the following is classified as a disinfectant?
a) benzalkonium chloride
b) isopropanol alcohol
c) povidone-iodine
d) sodium hypochlorite
1) C- Collect the GTT specimen first, and then the 5th floor specimen.
2) D- sodium hypochlorite
1) Amanda is using a winged infusion blood collection set, if the first tube is an additive tube, it is important that she 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
d) Sodium Fluoride, thrombin, citrate
2) A tube with a green stopper normally contain:
a) EDTA
b) Citrate
c) Heparin
d) Oxalate
1) B- Citrate, EDTA, Sodium Fluoride
2) C- Heparin
1) In the proper order of draw, list the tubes needed to collect a STAT hemoglobin, partial thromboplastin time, potassium and Lactic Acid on an ER pt:
a) Light blue, SST, lavender, green
b) lavender, light blue, green, gray
c) red, light blue, gray lavender
d) light blue, green, lavender, gray
2) Veronica is working in the lab, and she checks the procedure manual for a specimen requirement, due to her not being familiar with this test. Veronica learns that the test needs serum. Which of the following tubes will produce a serum specimen?
a) red top
b) green top
c) blue top
d) purple top
1) D- light blue, green, lavender, gray
2) A- Red top
1) Evacuated tubes fill with blood automatically because a _____ exists in the tube:
a) space
b) air pocket
c) vacuum
d) additives
2) Cheryl has to go to the third floor and draw an ammonia test. Which tube will Cheryl use and what department will process the test?
a) Oxalate and Chemistry
b) SST and Serology
c) Heparin and Chemistry
d) EDTA and Hematology
1) C- Vacuum
2) C- Heparin and Chemistry (pg. 242)
1) 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
d) releasing the tourniquet way too soon
2) A rapid serum tube contains:
a) citrate
b) EDTA
c) heparin
d) thrombin
1) B- Carryover of additives between tubes
2) D- Thrombin
1) What is the proper blood-to-additive ratio for a light blue-top tube collected for a coagulation test:
a) 4:1
b) 8:1
c) 3:1
d) 9:1
2)Which tube is used for collecting units of blood for transfusion.
a) Blue- Top
b) Yellow-top
c) Pink-top
d) Green-top
1) D- 9:1
2) B-Yellow-top (pg. 243)
1) Which additive below is used for immunohematology tests such as DNA:
a) Citrate phosphate dextrose
b) Acid citrate dextrose
c) Potassium oxalate
d) Sodium polyanethol sulfonate
2) This additive is used to remove calcium and prevent clotting by binding and precipitating calcium in the form of an insoluble salt. Which additive below is it:
a) Heparin
b) Oxalates
c) Acid Citrate Dextrose
d) EDTA
1) B- Acid Citrate Dextrose
2)B-Oxalates (pg. 243)
1) What is proper order of draw with a multi-sample needle?
a) light blue, red, green, purple
b) SST, plain red, blue, green
c) green, red, blue, pink
d) plain red, light blue, green, pink
2) Which tube below will produce the serum required for the BMP test?
a) Dk blue
b) Light blue
c) SST
d) Green
1) A- light blue, red, green, purple
2) C- SST
1) When tourniquets become soiled with blood, it is best to:
a) autoclave and reuse them
b) throw them away
c) wash them in bleach
d) wipe them with alcohol
2) Which needle gauge has the largest lumen?
a) 18
b) 20
c) 21
d) 22
1) B- throw them away
2) A-18
1) A trace-element free tube stopper is:
a) yellow
b) royal blue
c) lavender
d) green/gray
2) Mixing an additive correctly involves turning the wrist how many degrees and back again?
a) 45
b) 90
c) 120
d) 180
1) B- Royal Blue
2) D-180
1) Nonwinged blood collection sets come in a variety of sizes for a variety of veins. Which one below is not the size used:
a) 18g
b) 21g
c) 23g
d) 25g
2) Which tube below will yield serum and not whole blood?
a) Orange-top
b) White-top
c) Royal Blue-top
d) yellow-top
1) A-18g (pg. 238)
2) A-Orange-top (pg. 235)
1) Which additive is usually present in a tube with lavender stopper?
a) Oxalate
b) Citrate
c) EDTA
d) Heparin
2) A rapid serum tube contains:
a) citrate
b) EDTA
c) heparin
d) thrombin
1) C- EDTA
2) D- thrombin
1) Malcom Jamal- Warner had a toxicology test done. Which tube below did the technician use to obtain the specimen?
a) Light Blue top
b) Dk Blue top
c) Purple top
d) Red top
2) There is no additive in a red top tube, therefore initially:
a) the sample is whole blood
b) the sample yields serum
c) the sample protecting the calcium
d) there is binding to the heparin
1) B- Dk Blue top
2) A- sample is whole blood, but then once it clots the blood will yield serum
1) A tourniquet is used for venipuncture to:
a) Concentrate the blood specimen
b) find and enter veins more easily
c) keep the vein from collapsing
d) All of the above
e) none of the above are correct
2) The hole at the tip of the needle is called:
a) bevel
b) shaft
c) lumen
d) hub
1) D- All of the answers are correct
2) A-bevel
1) Shantel is performing a routine venipuncture on a pt with no known allergy to antiseptics. Which of the following substances would you use to clean the site?
a) 5.25% sodium hypochlorite
b) 70% isopropyl alcohol
c) antibacterial soap and water
d) povidone-iodine solution
2) Lavender top tubes are commonly used to collect:
a) Hematology
b) Chemistry
c) Coagulation
d) Immunology
1) B- 70% isopropyl alcohol
2) A- Hematology
1) Plastic red top used to collect blood specimens usually contain:
a) anticoagulants
b) clot activators
c) no additives
d) preservatives
2) Needle safety devices must:
a) allow the phlebotomist to safely activate it with both hands
b) create a barrier between a user's hand and the needle after use
c) provide temporary containment of the used venipuncture needle.
d) all of the above are correct
e) The only one that is correct is a & c
1) B- clot activators (pg. 234)
2) D- All are correct (pg. 228-test prep)