Purpose of tourniquet - ANS >A Tourniquet prevents venous flow out of the arm
What does the gauge of a needle indicate? - ANS >The gauge of a needle indicates the diameter of the needle's lumen
Describe the consequences of using a needle with a large lumen gauge number - ANS &g...
Venipuncture questions Answered And
Graded
Purpose of tourniquet - ANS >A Tourniquet prevents venous flow out of the arm
What does the gauge of a needle indicate? - ANS >The gauge of a needle indicates
the diameter of the needle's lumen
Describe the consequences of using a needle with a large lumen gauge number - ANS
>Blood cells may be hemolyzed.
Explain the purpose of the rubber sleeve on the multi sample needle - ANS >It keeps
the needle from becoming contaminated or injuring anybody. Also keeps the blood from
leaking
Explain the advantages and disadvantages of a syringe method over the evacuated
system - ANS >Advantage - the blood appears in the home when the hub when the
vein has been entered
Disadvantage - potential for needlestick when depositing blood into the collection tube
Define SPS and explain what it is used for - ANS >SPS is sodium
polyanetholesulfonate. It is an additive that prevents blood from clotting.
A collection tube containing anticoagulants must - ANS >The mix thoroughly after
collection inverted
gylcolysis - ANS >Cellular reaction used to harvest energy from glucose
Three types of blood specimen use for analysis - ANS >Hold blood, serum, plasma
What is the purpose of thicotropic gel - ANS >Forms a barrier between blood cells
serum or plasma preventing contamination allowing easy separation
Blacktop tube is used to determine - ANS >Sedimentation rate
Dark royal blue top tube is used to determine - ANS >Trace metals
Lavender top tube is also used to determine - ANS >Cbc
The most common gauge used for a routine venipuncture is - ANS >21
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