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What additive in a blood sample can inhibit the metabolism of glucose by cells?
NaF (Sodium Fluoride)
In a successful venipuncture, evacuated tubes fill automatically as soon as the tube is pierced because of:
premeasured vacuum in each tube
Which disinfectant is preferred by the HICPAC for use on surfaces and instruments?
EPA-registered sodium hypochlorite product
After a blood spill, a disinfectant is applied and have at least________minutes of contact time for cleanup to be effective.
If hands are heavily contaminated with organic material, and a sink is not available, the phlebotomist should clean them with:
detergent-containing wipes followed by a sanitizer
Occupational Safety and Health Administration(OSHA) regulations require that after use the:
tube holder with needle attached be disposed of as a unit
The headspace in an evacuated tube is:
a consistent amount of air space left when a tube is filled properly
This antiseptic has been traditionally used to obtain the high degree of skin antisepsis required when collecting blood cultures.
What criterion is used to decide which needle guage to use for venipuncture?
size and condition of the vein
The purpose of the rubber sleeve that covers the tube end of a multi-sample needle is to:
prevent leakage of blood during tube changes
A phlebotomy needle that does not have a safety feature:
musst be used with a holder with a safety feature
Which department would most likely perform the test on a specimen collected in an SPS tube?
It is important to fill oxalate tubes to the stated fill capactiy because excess oxalate:
causes hemolysis of blood specimens
If a blood pressure cuff is used for venipuncture in place of a tourniquet, the pressure used must be:
below the patient's diastolic pressure
Which additive contains a substance that inhibits phagocytosis of bacteria by white blood cells?
sodium polyanethol sulfonate
Which chemistry tube could contain either of two different forms of an anticoagulant salt because both have the same stopper. blue, gray, green, or tan?
An ETS holder and a syringe transfer device look very similar. What is the difference between the two?
there is a permanently attached needle with a sleeve inside the transfer device
A prothrombin time (PT) and platelet count are ordered on an 80-year-old female patient. Deciding to use a butterfly and "short draw" evacuated tubes on the tiny cephalic vein on the dorsal side of the right arm, the phlebotomist collects the light blue tube first and the lavender last. Why would you suspect that the PT test results might be incorrect and the platelet count unaffected.
no tube was drawn to remove air in the butterfly tubing
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