Question

Chapter 7 Blood Collection Equipment, Additives, and Order of Draw 137 KNOWLEDGE DRILL 7-3: TRUE/FALSE ACTIVITY The following statements are all false, Circle the one or two words that make the statement false, and write the correct word(s) that would make the statement true in the space provided. 1. Use of Band-Aids to hold pressure is not recommended because they tend to stick to the site and reinitiate bleeding when removed because they dislodge the platelet plug that seals a puncture site. 2. A properly applied tourniquet is tight enough to restrict arterial flow out of the area but not so tight as to restrict venous flow into the area. 3. A needle or tube holder that has a safety device is an example of a SESIP, which is the CLIA acronym for a sharp with engineered sharps injury protection. 4. When drawing venous blood by syringe, the phlebotomist slowly pulls back the plunger, creating a vacuum that causes the shaft to fill with blood. 5. A transfer device must be held horizontal when tubes are being filled to prevent blood in the tube from touching the needle within the transfer device. 6. An additive tube must be gently inverted two to four times, depending on the type of additive and the manufacturer, immediately after collection to adequately mix the additive with the specimen. 7. Vigorous mixing or an excessive number of inversions in light blue tubes can activate white cells and lengthen clotting times. 8. When using the ETS system, royal-blue tops for trace element studies should be collected first to avoid even the smallest amount of carryover. 9. The most common antimicrobial agent is sodium fluoride. It preserves glucose and inhibits the growth of bacteria. 10. Sodium fluoride in tubes has been the source of more carryover problems than any other additive 11. Glycolysis occurs faster in newborns because their metabolism is decreased. 12. Coagulation tubes require a 9:1 ratio of additive to blood. 13. Coagulation specimens are placed on a mechanical rotator to keep them from settling out. 14. Using a needle with a diameter larger than a 25-gauge increases the chance of hemolysis. 15. The FDA has banned the use of latex gloves in medicine because they pose a danger to human health,

Answer 1

1. Use of cotton balls is not recommended

2. a properly tied torniquet should not be tight enough

3. a needle or tube holder that has a safety device is an example of a SESIP which is a OSHA acronym for.....

4. when drawing venous blood by syringe, the phlebotomist slowly pulls back the plunger creating a vacuum that causes the barrel to fill with blood

5. A transfer device must be held vertical when tubes are being filled to prevent blood in the tube from touching the needle within the transfer device

6. an additive tube must be gently inverted Five to ten times depending on the type of additive and the manufacturer, immediately after the collection to adequately mix the additive with specimen.

7. vigorous mixing or an excessive number of inversions in light blue tubes can activate platelets and shortens clotting times

8. when using ets system , royal blue tops for trace elements studies should be collected separately to avoid even the smallest amount of carryover

9. the most common anti glycolytic agent is sodium fluoride. It preserves glucose and inhibits its breakdown.

10. EDTA in tubes has been the source of more carryover problems than any other additive

11. glycolysis occurs faster in newborns because their metabolism is increased

12. coagulation tubes require a 9:1 ratio of blood to additive

13. coagulation specimens are placed in centrifugation to keep them for settling Out

14. using a needle with a diameter larger than 21 gauge increases the chances of hemolysis

15. the fda has banned the use of powdered gloves in medicine because they pose a danger to human health.