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Health Assessment_ Assessing Thorax and Lungs 2024 QUESTIONS & ANSWERS SOLVED 100-
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Health Assessment_ Assessing Thorax and Lungs 2024 QUESTIONS & ANSWERS SOLVED 100-
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8/14/24, 4:52 AMPHLEBOTOMY- CHAPTER 8 (Study Questions)
Jeremiah
Terms in this set (22)
1. Explain the purpose of a tourniquet. A tourniquet prevents venous flow out of the arm.
2. What does the gauge of a needle The gauge of a needle indicates the diameter of the needle's lumen.
indicate?
3. Describe the consequences of using a If a large-gauge needle is used in venipuncture, collection is slower and blood cells
needle with a large gauge number. may be hemolyzed (destroyed) as they pass through the narrower opening.
The rubber sleeve on the multisample needle keeps the needle from becoming
4. Explain the purpose of the rubber sleeve
contaminated or injuring you or the patient, and it keeps blood from leaking onto or
on the multisample needle.
into the adapter or tube holder, especially when changing tubes.
5. Explain the advantages and disadvantages An advantage of the syringe method is that blood appears in the hub when the vein has
of the syringe method of drawing blood as been entered. A disadvantage of the syringe method is that there is the potential for
opposed to the evacuated system. needle stick when depositing blood into the collection tube.
6. Blood tubes are evacuated. Explain what When blood tubes are evacuated, a vacuum is created within the tube so that a
this means. measured amount of blood will flow in easily.
Unused blood tubes must be discarded when they expire because out-of-date tubes
7. Why must unused blood tubes be
may have decreased vacuum, preventing a proper fill, or they may have additives that
discarded when they expire?
degrade over time.
8. Define SPS and explain what it is used for. SPS is sodium polyanetholesulfonate. It is an additive that prevents blood from clotting.
9. If a collection tube contains an Blood collected in a tube with an anticoagulant must be mixed thoroughly after
anticoagulant, what must you do collection by gently and repeatedly inverting the tube.
immediately after collection?
10. Explain the purpose of thixotropic gel in a Thixotropic gel forms a barrier between blood cells and serum or plasma, thus
collection tube. preventing contamination and allowing easy separation.
11. Define glycolysis . Glycolysis is a cellular reaction used to harvest energy from glucose.
Blood specimens used for analysis are:
12. Name the 3 types of blood specimens 1. Whole blood
used for analysis. 2. Serum
3. Plasma
13. Tan Is used for lead analysis
14. Red or pink Blood bank
PHLEBOTOMY- CHAPTER 8 (Study Questions)
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