HOSA PHLEBOTOMY EXAMINATION TEST
2026 QUESTIONS WITH SOLUTIONS
GRADED A+
◉ What is an example of a vein locating device? Answer: neonatal
transilluminator
◉ what locates hard seeing veins? Answer: Transillumination
◉ What does a tourniquet do? Answer: Constricts the flow of blood
in the arm and makes the veins pop out
◉ how does gauge relate to needle size? Answer: the bigger the
gauge, the smaller the diameter of the needle
◉ whats the standard size for a guage? Answer: 21
◉ what different types of needs are there? Answer: hypodermic,
wing infused and multisample
,◉ what is ETS(evacuated tube system)? Answer: patients blood
flows through a needle in a tube without air expose
◉ what are the 3 basic components of a ETS? Answer: blood
drawing needle,tube holder, and evacuated tube
◉ what does the needle do? Answer: punctures the skin and extracts
blood through vein
◉ what does the tube holder do? Answer: hold test tubes
◉ What do evacuated tubes contain? Answer: additives and
anticoagulants
◉ what do the evacuated tubes hold? Answer: blood
◉ what pulls air from the tube? Answer: vacumm(- pressure)
◉ what is premature lost? Answer: the tube fails to fill with blood
◉ What do stoppers do? Answer: prevents blood drops on stoppers
, ◉ What are additives? Answer: Sodium Citrate, Serum Separator
Tube(SST), Plasma Separator Tube (PST), Heparin, EDTA, Sodium
Floride
◉ What do nonadditive fixatives do? Answer: clearing and
discarding
◉ What is the order of draw? Answer: Yellow, light blue, red, gold,
mint green, green, lavender, gray,
◉ why does order of draw exist? Answer: to prevent contamination
of blood specimens
◉ What additive is in a lavender tube? Answer: EDTA
(ethylenediaminetetraacetic acid)
◉ What additive is in a green tube? Answer: Sodium heparin or
lithium heparin
◉ What additive is in a light blue tube? Answer: sodium citrate
◉ what additive is in a yellow tube? Answer: SPS (Sodium
polyanetholesulfonate)
2026 QUESTIONS WITH SOLUTIONS
GRADED A+
◉ What is an example of a vein locating device? Answer: neonatal
transilluminator
◉ what locates hard seeing veins? Answer: Transillumination
◉ What does a tourniquet do? Answer: Constricts the flow of blood
in the arm and makes the veins pop out
◉ how does gauge relate to needle size? Answer: the bigger the
gauge, the smaller the diameter of the needle
◉ whats the standard size for a guage? Answer: 21
◉ what different types of needs are there? Answer: hypodermic,
wing infused and multisample
,◉ what is ETS(evacuated tube system)? Answer: patients blood
flows through a needle in a tube without air expose
◉ what are the 3 basic components of a ETS? Answer: blood
drawing needle,tube holder, and evacuated tube
◉ what does the needle do? Answer: punctures the skin and extracts
blood through vein
◉ what does the tube holder do? Answer: hold test tubes
◉ What do evacuated tubes contain? Answer: additives and
anticoagulants
◉ what do the evacuated tubes hold? Answer: blood
◉ what pulls air from the tube? Answer: vacumm(- pressure)
◉ what is premature lost? Answer: the tube fails to fill with blood
◉ What do stoppers do? Answer: prevents blood drops on stoppers
, ◉ What are additives? Answer: Sodium Citrate, Serum Separator
Tube(SST), Plasma Separator Tube (PST), Heparin, EDTA, Sodium
Floride
◉ What do nonadditive fixatives do? Answer: clearing and
discarding
◉ What is the order of draw? Answer: Yellow, light blue, red, gold,
mint green, green, lavender, gray,
◉ why does order of draw exist? Answer: to prevent contamination
of blood specimens
◉ What additive is in a lavender tube? Answer: EDTA
(ethylenediaminetetraacetic acid)
◉ What additive is in a green tube? Answer: Sodium heparin or
lithium heparin
◉ What additive is in a light blue tube? Answer: sodium citrate
◉ what additive is in a yellow tube? Answer: SPS (Sodium
polyanetholesulfonate)
