2025 HOSA Phlebotomy – Advanced-Level Questions
with Verified Correct Answers – Complete Certification & Competition Exam
How does the vein locating device work?
Answer: Hemoglobin absorbs the light, appears dark
C
What is an example of a vein locating device?
LE
Answer: neonatal trans-illuminator
ST
BE
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
C
LE
what different types of needs are there?
ST
Answer: hypodermic, wing infused and multisample
BE
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
C
what does the tube holder do?
Answer: hold test tubes
LE
ST
What do evacuated tubes contain?
BE
Answer: additives and anticoagulants
what do the evacuated tubes hold?
Answer: blood
with Verified Correct Answers – Complete Certification & Competition Exam
How does the vein locating device work?
Answer: Hemoglobin absorbs the light, appears dark
C
What is an example of a vein locating device?
LE
Answer: neonatal trans-illuminator
ST
BE
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
C
LE
what different types of needs are there?
ST
Answer: hypodermic, wing infused and multisample
BE
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
C
what does the tube holder do?
Answer: hold test tubes
LE
ST
What do evacuated tubes contain?
BE
Answer: additives and anticoagulants
what do the evacuated tubes hold?
Answer: blood
