Medca phlebotomy exam prep chapter 4
with correct answers 100%
Why is it important to fill tubes with anticoagulants to the correct levels? - Correct Answerto
provide an accurate blood- additive ratio
What is the preferred anticoagulant in clinical chemistry? - Correct Answerheparin
What is the general anticoagulant used to study glucose levels? - Correct Answersodium
fluoride
Order Of Draw - Correct AnswerYellow
Light Blue
Gold
Red
Orange
Green
Purple
White
Grey
Yellow Top - Correct AnswerBlood 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 AnswerCitrate
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 AnswerAdditive- Sodium EDTA
Mode of Action- contain no contaminating metals
Uses- trace element (lead, zinc) testing and toxicology
Gold Top - Correct AnswerGel Separator
Mix by inverting 5 times
Additive- none (will clot)
with correct answers 100%
Why is it important to fill tubes with anticoagulants to the correct levels? - Correct Answerto
provide an accurate blood- additive ratio
What is the preferred anticoagulant in clinical chemistry? - Correct Answerheparin
What is the general anticoagulant used to study glucose levels? - Correct Answersodium
fluoride
Order Of Draw - Correct AnswerYellow
Light Blue
Gold
Red
Orange
Green
Purple
White
Grey
Yellow Top - Correct AnswerBlood 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 AnswerCitrate
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 AnswerAdditive- Sodium EDTA
Mode of Action- contain no contaminating metals
Uses- trace element (lead, zinc) testing and toxicology
Gold Top - Correct AnswerGel Separator
Mix by inverting 5 times
Additive- none (will clot)
