Sample and Specimen Types
The liquid portion of the blood that contains fibrinogen and has not clotted is called:
1. serum
2. whole blood
3. plasma
4. factor
What is plasma
Which test may be affected if contaminated with heparin?
1. alkaline phosphatase
2. APTT
3. Creatine kinase-MB
4. Potassium
What is APTT
A plasma separator tube has what color stopper?
1. black
2. dark blue
3. gray
4. light green
What is light green
Which part of the needle attaches to the syringe or blood collection holder?
1. bevel
2. hub
3. point
4. shaft
What is hub
Which type of blood sample is the sample of choice for clinical laboratory testing?
1. arterial blood
2. capillary blood
3. venous blood
What is venous blood
A tube with a white stopper contains which anticoagulant or additive
1. Clot activator gel
2. EDTA
3. EDTA and gel
4. Sodium citrate
What is EDTA and gel
Orange-top tube containing thrombin are used for:
1. lead testing
2. STAT serum chemistry determinations
3. DNA and paternity testing
4. Erythrocyte sedimentation rate determination
What is STAT serum chemistry determinations
What needle gauges are the standard for evacuated tubes?
1. 20 or 21 gauge
2. 21 or 22 gauge
3. 23 or 24 gauge
4. 23 or 25 gauge
What is 21 or 22 gauge
Normal serum and plasma appear:
1. clear and yellow
2. pink to red
3. dark yellow
4. cloudy and milky
A sample contaminated by ___________ can impact a test for coagulations.
1. EDTA
2. sodium fluoride
3. potassium oxalate
4. silica
What is EDTA
Serum separator tubes contain:
1. Heparin and a separation gel
2. A glucose preservative
3. Silica and a polymer separation gel
4. A density gradient liquid and a polyester gel
What is Silica and a polymer separation gel
What is an advantage of using a syringe for collecting blood?
1. blood does not need to be transferred to a tube
2. it prevents hemolysis of the specimen
3. it can be used to puncture the rubber stopper of the collection tube
4. the amount of suction pressure on the vein can be controlled
What is the amount of suction pressure on the vein can be controlled
A specimen appears dark yellow, making the collector suspect it contains increased bilirubin. The collector should consider this specimen:
1. normal
2. hemolyzed
3. icteric
4. lipemic
What is icteric
Contamination of a green, red or gold stopper tube designated for sodium, potassium, and calcium determinations with EDTA would:
1. decrease the calcium and increase the sodium or potassium results
2. increase the calcium and decrease the sodium or potassium results
3.decrease the sodium and increase the calcium or potassium results
4. decrease the potassium and increase the sodium or calcium results
What is (1) decrease the calcium and increase the sodium or potassium result
Which option follows the correct order of draw according to CLSI recommendations?
1. Sterile sample, light blue stopper tubes, gray stopper tube.
2. Red stopper tubes, green stopper tubes, yellow stopper tubes
3. Gray stopper tubes, green stopper tubes, red stopper tubes
4. sterile sample, lavender stopper tubes, green stopper tube
What is Sterile sample, light blue stopper tubes, gray stopper tube.
What is the purpose of the plastic 'butterfly wings' on the winged blood collection set?
1. hold the needle during insertion and secure the apparatus during use
2. allow the collector to raise the needle insertion angle when working with very small veins
3. help the collector control the amount of suction pressure vein
4. allow the needle to automatically retract into the device
What is hold the needle during insertion and secure the apparatus during use