Chapter 7 Flashcards
Plastic red top tubes used to collect blood contain
Clot activators
Excess oxalate may cause
Hemolysis of blood specimens
The part of the syringe that shows measurements is
The barrel
Which test is most affected by tissue thromboplastin contamination
Coagulation
A trace element specimen tube should be collected
Separate or by syringe
Which blood specimen additive can inhibit glucose
NaF or sodium fluoride
This antiseptic is traditionally used to obtain a high degree of skin antisepsis
Povidone iodine
Which stat test is typically collected in a lithium heparin tube
Electrolyte panel
Which is most likely to hemolysis a specimen
25 gauge butterfly to collect from a small child
You are in the middle of drawing a specimen when you realize you filled an EDTA tube but still have a green top to collect
Draw several ML into a discard tube then fill the green
Which anticoagulants remove calcium by forming salts
Sodium citrate, EDTA, oxalate
Decon after glove removal is essential because
Hand contamination might not be visible to the naked eye
Tube stopper color indicates EDTA
Lavender
The purpose of sodium citrate in specimen collection is to
Protect coagulation factors
Electrolytes should never be collected in a
Gray top tube
Which department would most likely perform tests on an SPS tube
Microbiology
If using a blood pressure cuff in place of tourniquet the pressure must be
Below the patients diastolic pressure
Which additive contains a substance that inhibits phagocytosis of bacteria
Sodium polyanethol sulfonate SPS
Which is unnecessary when performing a routine puncture
Skin disinfectant
Which is one reason the ETS system is preferable
Exposure to blood contamination is avoided
Which additive is in four separate tubes with different colors
EDTA
A home care phlebotomist draws numerous tests with arm above shoulder. Which will be discarded?
Potassium, PT, PTT
Lithium heparin is a suitable anticoagulant for which test
Lytes
Needle safety devises must
Create a barrier between users hand and needle after use