QUESTIONS AND SOLUTIONS GRADED A+
◉ when patient develops syncope during a venipuncture, the
phlebotomist should first. Answer: remove tourniquet and call for
help
◉ the main reason not to use expired evacuated tubes. Answer: they
may exhibit incomplete filling
◉ the most critical part of a blood culture collection is. Answer: skin
antisepsis of the collection site
◉ what would trigger hematoma formation. Answer: removing the
needle while the tourniquet still on the arm
◉ Heparin prevents clotting by. Answer: inactivating thrombin
◉ if a pt is critical or an antibiotic needs to be given right away, and
two blood culture sets are collected. Answer: immediately from two
different sites
,◉ if additive contamination occurred from an EDTA evacuated tube,
what test would potentially be affected?. Answer: Potassium level
◉ The anticoagulant heparin is used in tubes with tops of what
color?. Answer: Green
◉ older patients are more prone to hematoma formation because.
Answer: their veins have decreased elasticity
◉ donating their own blood for their own use. Answer: autologous
donation
◉ how do you stop bleeding at a venipuncture site. Answer: place
gauze pad over the site and hold pressure for 5-15 minutes
◉ the color coded tube that is most frequently associated with
hematological tests is. Answer: lavender
◉ the primary reason for using syringe transfer device is to. Answer:
safely transfer blood from syringe into ETS tubes
◉ A basal-state specimen is collected when. Answer: early in
morning, after fasting for 12 hrs
, ◉ The liquid portion of an anticoagulated blood specimen is called.
Answer: Serum
◉ Petechiae are tiny, nonraised red spots on a patients skin when
the tourniquet is applied. This is indicates, that. Answer: the site
may bleed excessively
◉ A postprandial specimen is collected. Answer: directly after a
meal is consumed
◉ If serum is left to remain on the blood clot for more than one hour,
what will likely occur. Answer: serum glucose levels decrease
◉ what part of heel in infants is recommended for capillary
puncture specimens. Answer: medial planter surface
◉ when the needle penetrates all the way through the vein this can
form. Answer: hematoma
◉ To prevent glycolysis, which additive is used?. Answer: Sodium
Fluoride
◉ Complete clotting of a blood specimen can take up to. Answer: 30
minutes at room temperture