Questions and Answers
Blood culture tube – answer sodium polyanethol sulfonate (SPS), used for bacterial
studies.
Light blue tubes – answer Additive: sodium citrate.
Lab test: coagulation studies PT, PTT, factor assay.
light green/marbled green tubes – answer Additive: separator, Lithium heparin.
Lab test: potassium
purple/lavender tube – answer Additive: EDTA, Lab test: CBC, whole blood hematology
cell count.
Gray tubes – answer Additives: potassium oxalate/ heparin, sodium fluoride
Lab test: glucose, GTT, alcohol.
Royal blue tube – answer Additives: sodium heparin, EDTA.
Lab test: drug screen, trace metals.
yellow tubes - answerAdditives: SPS, ACD.
Lab test: blood cultures, HLA studies.
Serum tubes - answerused for blood tests that require the blood to clot.
Red tube - answerno additive,
Lab test: Discard, chemistries, serologies, blood bank.
Gold tube - answerClot activator
Orange tube - answerthrombin based clot activator, used when the chemistry
determination is for stat blood collection.
First choice vein - answermedian cubital vein
A phlebotomy technician is performing a capillary collection for CBC, FSH, and
electrolyte tests. Which of the following is the proper collection order? -
answerLavender, green, red.
A phlebotomy technician is performing a hand venipuncture on a 25-year-old patient
who has small veins that are difficult to access. Which of the following equipment should
the technician use to perform the procedure?
, -21 gauge ETS eclipse needle
-25 gauge ETS eclipse needle
-23 gauge winged collection set
-23 gauge syringe collection set - answer23-gauge winged collection set
A patient sits down for a vina puncture in an outpatient setting, rolls up her sleeve, and
extends her arm. The patient turns her head away from the phlebotomy technician and
says, "I don't want my blood drawn." Which of the following responses should the
technician make to the patient?
-I am going to start the drawing now.
-May I draw your blood?
-do you want me to get the nurse?
-I will get another phlebotomist. - answerMay I draw your blood?
A phlebotomy technician is performing a vina puncture for a potassium test, CBC, and
glucose test. The technician has left the tourniquet on the patient for three minutes.
Which of the following outcomes should the technician expect? - answerHigh potassium
level
A phlebotomy technician is preparing to perform a vina puncture test for coagulation,
WBC, pregnancy, and random glucose. Which of the following tubes of the technician
choose?
-SPS, ACD, and sodium citrate
-sodium heparin, EDTA, SST
-SPS, AC D, and sodium heparin
-sodium citrate, SST, and EDTA - answersodium citrate, SST, and EDTA
Phlebotomy technician is preparing to collect a variety of blood specimens. Which of the
following specimens for the technician collect first? - answerBlood culture
phlebotomy technician is performing a dorsal been a puncture with the needle at a 15°
angle, resulting in slow blood flow in the development of a hematoma which of the
following to the technician identify as a cause of the hematoma? - answerneedle
completely through the vein
A Phlebotomy technician is performing a dermal puncture for an adult patient. Which of
the following locations shut the technician use for the procedure? - answerThe side of
the ring finger
phlebotomy technician is performing a vina puncture on a patient. When the technician
insert the needle, the rain collapses. Which of the following is a possible cars? -
answerApplying the tourniquet too tightly
I phlebotomy technician accidentally punctures of patients artery during a vina puncture
procedure. Which of the following actions should the technician take? - answerapply
pressure to the site for at least five minutes