Yields
Lab Responsible
Order of Draw
Additive
Common Tests
100

_____ is the liquid portion of blood that has been allowed to clot (coagulate). 

What is Serum?

100

Fill in the blank.

In small labs that do not have a designated Coagulation Department, these samples will be sent a tested in the __________ Department.

What is Hemotology?

100

What is the very first test in the order of draw?

Blood culture bottles

100

What is the additive in a Red Top Glass Tube?

There is no additive in a Red Top Glass Tube.

100

You're about to draw an aPTT specimen. Before you begin to fill this tube what needs to happen?

You need to draw a discard tube before you draw an aPTT (Light Blue Top Tube).

200

Name the two types of tubes that yield serum.

What is a RED TOP TUBE and an SST TUBE?

200

The Chemistry Lab is responsible for testing the following FIVE tubes:

___ ___

___ ____

_____ _____ ____

____ _____ ____

____ ___ ____

What is 

Red Tube

SST Tube

Light Green Tube

Dark Green Tube

Gray Top Tube

200

True or False?

The tube required for a PT, PTT, and an aPTT is placed third in the order of draw.

True

200

Name the only tube without a gel additive.

What is a Dark Green Top Tube?

200

A patient in your office is getting their blood drawn by your coworker. Your coworker forgets their patient also needs their blood tested for heavy metals/metal poisoning. They ask you to retrieve the tube for this test to place in their order of draw. What color tube do you need to retrieve for your coworker? 

What is a Dark Blue/Royal Blue Tube?

300

You can't tell the difference between plasma and serum with your eyes. What differentiates what is a plasma and what is a serum?

The clotting factors in the yellow-tinted fluid.

300

The lab sent back a specimen in a Dark Green tube because it could not be used. What happened or didn't happen to this specimen that made it invalid?

The phlebotomist did not place the specimen on ice once it was collected.

300

Starting with an SST Tube what is the rest of the order of draw? 

SST Tube

Light Green Tube

Dark Green Tube

Pink Tube

Lavender Tube

Gray Tube

Royal Blue Tube

300

Fill in the blanks. 

When light blue tubes are being collected they must be filled to the line placed at the top to provide an adequate _____ __ ________ ratio. The ratio is _ parts _____ to _ part ________.

When light blue tubes are being collected they must be filled to the line placed at the top to provide an adequate blood-to-additive ratio. The ratio is 9 parts blood to 1 part additive.

300

A patient about to receive a blood transfusion needs blood drawn to figure out their type and what blood is compatible with theirs. What tube would the phlebotomist need to collect this specimen?

What is a Pink Top Tube?

400

A serum pregnancy test was sent to be processed in a light green tube. It was sent back. Why was this test not performed?

Light green tubes only produce plasma.

400

The lab responsible for processing a Pink Top Tube is the  _____ ____.

What is blood bank?

400

What is the color of the tube within the order of draw that is placed last but actually drawn in the order of the additive?

Royal Blue/Dark Blue Tube.

400

What FOUR Tubes do not contain anticoagulants?

Clear Discard Tube

Red Glass Tube

Red Plastic Tubes

SST Tube

400

An adult woman needs a pregnancy test. Which tube/s can be used for a pregnancy test? What kind of pregnancy test will each tube provide?

A red Top tube will provide a serum pregnancy test.

An SST tube will provide a serum pregnancy test.

A light green tube will provide a plasma (hCG) pregnancy test.

500

The lab detected that the additive in one of your coworkers' specimens' was double the original amount. What occurred that would cause this to happen?

The original specimen was transferred to an identical tube with the same amount of additive in both.

500

Fill in the blank.

The __________ Lab sent back a Lavender Top Tube.

Answer the Question.

The specimen was collected and handled incorrectly. What is every possible reason this could have happened to this tube?

What is Hematology?

The tube was only halfway full.

The tube was centrifuged immediately after. 

When the specimen arrived at the lab it was already hemolyzed.

It was only inverted 3-4 times.

500

What is the order of draw?

Blood Culture Bottles

Discard Tube (Clear or Red)

Light Blue Top

Red Top

SST Tube

Light Green Top

Dark Green Top

Pink Top

Lavender Top 

Gray Top

Dark Blue Top

500

What are the additives contained inside an SST Tube? 

Silica (clot activator) and Thixotropic Gel (serum separator)

500

A patient comes in for a full workup. Their physician has ordered a CMP, STAT Electrolytes, Ammonia, CBC, and Lactic Acid. What is the order of draw by Tube Top Colors?

The Order of Draw would be as follows: 

SST Tube

Light Green Tube

Dark Green Tube

Lavender Tube

Gray Tube

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