Order Of Draw

Question 1

What is the order of draw?

Answer 1

1. Blood culture tube or bottles
2. Sodium citrate tube (e.g., light blue-top coagulation tube)
3. Serum tube with or without clot activator, with or without gel (e.g.,
   red, red/gray mottled, or gold stopper)
4. Heparin tube with or without gel (e.g., light or dark green top,
   green/gray mottled)
5. EDTA tube with or without gel separator (e.g., lavender/purple,
   pink, or white/pearl top)
6. Sodium fluoride/potassium oxalate glycolytic inhibitor (e.g., gray
   top)

Question 2

Heparin is the additive in:

Answer 2

• Green-top tubes
• Green-top and light green-top gel tubes (see Fig. 7-18)
• Mottled green and gray-top tubes
• Royal blue-top tubes with green color coding on the label
• Green-top and light green-top microtubes
• Red-banded and green-banded microhematocrit tubes

Question 3

Sodium citrate tubes have

Answer 3

light- blue stoppers; Sodium citrate is also the additive in special erythrocyte sedimentation rate (ESR) tubes with black stoppers.

Question 4

EDTA is the additive in:

Answer 4

• Lavender (or purple)-top tubes (see Fig. 7-18).
• Microcollection containers with lavender tops.
• Pink plastic-top tubes with a special blood bank patient ID label.
• Royal blue-top tubes with lavender color coding on the label.
• Tan-top tubes used for lead analysis.
• White/pearl-top tubes with thixotropic gel separator.

Question 5

ACD tubes have;

Answer 5

yellow tops and require eight inversions immediately after collection to prevent clotting.

Question 6

SPS tubes have;

Answer 6

yellow stoppers and require eight inversions to prevent clotting.

Question 7

glycolysis

Answer 7

the breakdown or metabolism of glucose (blood sugar) by blood cells.

Question 8

sodium fluoride tubes have;

Answer 8

gray stoppers and both require between five and 10 inversions (depending on the manufacturer) for proper mixing, even though the serum tubes do not also contain an anticoagulant.

Question 9

Thixotropic gel

Answer 9

Is an inert (nonreacting) synthetic substance initially contained in or near the bottom of certain blood collection tubes.

Question 10

Serum gel-barrier tubes include:

Answer 10

• BD gold plastic stopper serum-separator tubes (SSTs)
• BD mottled red/gray rubber stopper SST tubes
• BD orange stopper rapid serum tubes (RSTs)
• Monoject Corvac mottled red/gray rubber stopper (tiger top) tubes
• Vacuette serum tubes with red plastic over yellow stoppers Plasma gel barrier tubes include:
• BD light green plastic heparinized plasma-separator tubes (PSTs)
• BD mottled gray/green rubber stopper PSTs
• Vacuette heparin tubes with green plastic over yellow stoppers
• Vacuette white or lavender over yellow stopper EDTA tubes
• White/pearl-colored stopper EDTA plasma-preparation tubes (PPTs)

Question 11

trace element-free tubes are;

Answer 11

royal blue