PHLEBOTOMY 1
What is bruising caused by blood leaking from a blood vessel?
Hematoma
What does color coding indicate on a needle?
Gauge
How far above the venipuncture site should the tourniquet be wrapped around the arm?
3 to 4 Inches
If a vein feels hard and thready like when palpated, the vein may be what?
Sclerosed
Using an expired evacuated tube for blood specimen collection can lead to what?
incomplete filling of the tube
When blood collected in a syringe must be placed in evacuated tube it is best if the phlebotomist uses what device?
Transfer device
What antiseptic should be used for routine blood collection?
70% isopropyl alcohol
When palpating, which type of vein would be most appropriate to select for venipuncture?
Bouncy
What is the correct angle at which the needle should enter the skin?
15–30 degrees
Bracing the hand while holding the needle assembly against the patient's arm prevents what?
Excessive needle movement
What instrument may be used to visualize veins during venipuncture?
Venoscope
When is a fasting specimen best collected?
Early in the morning
What is the coagulation process that causes formation of a blood clot followed by lysing of the blood clot when the injury is repaired?
Hemostasis
What is the most critical step in collecting a blood culture?
Cleansing the venipuncture site
What is the correct procedure to stop bleeding at a venipuncture site?
Place a gauze pad over the site and hold pressure for 5 to 15 minutes
If an individual comes in for an autologous donation, what is this person coming to do?
Donate their own blood for their own use
Which additive is used to prevent glycolysis?
Sodium Fluoride
Preanalytical errors are mistakes made
before laboratory testing.
What will vigorous mixing or shaking of blood collection tubes cause?
Hemolysis
What would the visible appearance of a serum or plasma specimen from a patient with severe lipemia look like?
Milky
If the phlebotomist is utilizing a blood collection tube containing the additive sodium citrate, which inhibits glycolysis, which type of laboratory test is being completed?
Coagulation studies
A serum or plasma specimen containing abnormally increased fatty substances from animal or vegetable origin is described as
lipemic.
A patient states that he or she has a needle phobia; what should the phlebotomist do?
Have the patient lie down during the procedure.
What would be the best approach to use when a child is getting blood drawn?
Explain what you are going to do in simple terms and ask the child for his or her cooperation
Petechiae are tiny, non-raised red spots on a patient’s skin when the tourniquet is applied. Which of the following is petechiae likely to indicate?
The site may bleed excessively