Order of Draw & Additives

Question 1

Why is it important to follow the proper Order of draw when collecting blood?

a) Its how medical institutions set it
b) Prevent the transfer of specific additives from one tube to another
c) Additives in one tube can affect the test results of a different tube

Answer 1

b+c

Question 2

Blood culture test tubes are the first bottles you’d want to fill up in the order of draw. Which type of Blood Culture collection tube is used first?

a) Anaerobic
b) Aerobic
c) Sterilized

Answer 2

b

Question 3

The Light blue collection tube comes is drawn before what other collection tube?

a) Royal blue cap
b) Yellow cap
c) Red cap

Answer 3

c

Question 4

What types of tests are performed on the Light Blue collection tubes?

a) Coagulation
b) GTT
c) Chemistry Tests

Answer 4

a

Question 5

Why is it essential to fill up the Light blue cap tubes up to the specified line?

a) Contains sodium citrate, and there must be a defined ratio of blood and additive for proper mix
b) Contains sodium heparin and there must be a defined ratio of blood and additive for proper mix
c) More blood is needed to perform the tests associated with the Light blue tubes

Answer 5

a

Question 6

What types of tests are performed on Red collection tubes?

a) Coagulation
b) Chemistry Tests
c) Sedimentation Rate
d) Blood Banks

Answer 6

b + d

Question 7

List the following collection tubes in the correct order of draw.

1- Lavender
2- Red
3- Gold/SST
4- Gray

Answer 7

2, 3, 1, 4

Question 8

What does SST stand for? What color tube is this abbreviation associated with?

a) Serum Separator tube; Black cap
b) Stat Serum tube; Gold cap
c) Serum Separator tube; Gold cap

Answer 8

c

Question 9

What types of tests are performed on the Green collection tubes?

a) Cardiac Markers
b) Chemistry Tests
c) Toxicology
d) GTT

Answer 9

a + b

Question 10

Which collection tube must quickly be iced after the blood draw?

a) Green
b) Royal blue
c) Pink
d) Gray

Answer 10

a

Question 11

What types of tests are performed on the Lavender collection tubes?

a) Coagulation
b) CBC
c) Blood bank
d) Hematology

Answer 11

b + d

Question 12

List the following collection tubes in the correct order of draw.

1- Lavender
2- Green
3- Light Blue
4- Pink

Answer 12

3, 2, 1, 4

Question 13

Which collection tubes are coated with EDTA?

a) Lavender
b) Gray
c) Pink
d) Light Blue

Answer 13

a + c

Question 14

What additive is found in Gray top tubes?

a) sodium citrate
b) Potassium oxalate
c) sodium heparin
d) sodium fluoride

Answer 14

b + d

Question 15

List the full proper order of draw.

Answer 15

1- Yellow (Blood Culture) Sterile
2- Light Blue
3- Red
4- Gold/SST
5- Green
6- Lavender
7- Pink
8- Gray

Question 16

A Phlebotomist fills a Red cap tube before filling a Light blue cap tube which goes against the order of the blood draw. When would this exception be valid?

a) During a butterfly method blood draw where you’d want to remove any air out of the syringe and into the red tube and not the light blue cap. Light blue caps have to be filled up fully.

b) This would not be valid under any circumstances

Answer 16

a