Order of Draw

Question 1

First tube to be drawn in the order of draw

Answer 1

Yellow top tube

Question 2

Additive found in the yellow top tube

Answer 2

SPS (sodium polyethanol sulfonate.

Acid citrate dextrose

Question 3

Additive found in the light blue top tube

Answer 3

Sodium Citrate

Question 4

Additive found in the red top tube

Answer 4

None

Question 5

Additive found in the red/black or gold top tube (tiger)

Answer 5

Separator gel

Question 6

Additive found in the green top tube

Answer 6

Heparin

Question 7

Additive found in the lavender top tube

Answer 7

EDTA (ethylenediaminetetraacetic acid)

Question 8

Additive found in the gray top tube

Answer 8

Sodium fluoride

Potassium oxalate

Question 9

What is the yellow top tube used for

Answer 9

Microbiology-blood cultures

Immunology-HLA (human leukocyte antigen)

Question 10

What is the light blue tube used for

Answer 10

Coagulation studies (PT, PTT, INR)

Question 11

What is the red test tube used for

Answer 11

Chemistry (Serum tests)

Question 12

What is the tiger test tube used for

Answer 12

Chemistry (Serum)

Question 13

What is the green test tube used for

Answer 13

Chemistry (Plasma)

Question 14

What is the lavender test tube used for

Answer 14

Hematology (CBC, H/H, sedimentation rate

Question 15

What is the gray test tube used for

Answer 15

Chemistry (glucose, ETOH)

Question 16

What is the royal blue test tube used for

Answer 16

Chemistry (trace elements)

Question 17

A complete blood count (CBC) is collected in an evacuated tube with what color stopper?

Answer 17

Lavender

Question 18

The most important step in the performance of a venipuncture is

Answer 18

Identifying the patient

Question 19

Before performing a venipuncture, why do we use a tourniquet?

Answer 19

To help locate the veins

Question 20

What is the preferred site for venipuncture?

Answer 20

Antecubital fossa