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MEDCA Phlebotomy Exam Prep CHAPTER 4 || with Errorless Answers.

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Why is it important to fill tubes with anticoagulants to the correct levels? correct answers to provide an accurate blood- additive ratio What is the preferred anticoagulant in clinical chemistry? correct answers heparin What is the general anticoagulant used to study glucose levels? correct answers sodium fluoride Order Of Draw correct answers Yellow Light Blue Gold Red Orange Green Purple White Grey Yellow Top correct answers Blood Cultures (SPS) (sodium polyanethold sulfonate) mix by inverting 8-10 times Additive- ACD (acid-citrate- dextrose) Mode of Action- complement inactivation

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MEDCA Phlebotomy Exam Prep CHAPTER 4 || with Errorless
Answers.


Why is it important to fill tubes with anticoagulants to the correct levels? correct answers to
provide an accurate blood- additive ratio


What is the preferred anticoagulant in clinical chemistry? correct answers heparin


What is the general anticoagulant used to study glucose levels? correct answers sodium fluoride


Order Of Draw correct answers Yellow
Light Blue
Gold
Red
Orange
Green
Purple
White
Grey


Yellow Top correct answers Blood Cultures (SPS) (sodium polyanethold sulfonate)


mix by inverting 8-10 times


Additive- ACD (acid-citrate- dextrose)


Mode of Action- complement inactivation

, Uses- paternity testing, DNA studies, HLA tissue testing


Light Blue Top correct answers Citrate


Mix by inverting 3-4 times


Additive- Sodium Citrate


Mode of Action- forms calcium salts to remove calcium


Uses- coagulation tests, full draw required


Dark Blue Top correct answers Additive- Sodium EDTA


Mode of Action- contain no contaminating metals


Uses- trace element (lead, zinc) testing and toxicology


Gold Top correct answers Gel Separator


Mix by inverting 5 times


Additive- none (will clot)


Mode of Action- serum separator
- contains gel at the bottom to separate blood from serum via centrifugation

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