NHCO phlebotomy Practice Exam 4
Questions and Answers Latest Versions
2026 Top Rated
Which of the following is the best indication that a patient might be at
risk of syncope?
paleness and sweating
Why is it important for a phlebotomist to invert anticoagulant tubes?
to ensure proper mixing of blood and additive
Which of the following protects a patients information?
HIPPA
Which of the following needle sizes is NOT used for laboratory assays
but for collection of donor units of blood?
18-gauge
How many minutes within a collection of a urine sample should the
phlebotomist take the temperature of the specimen?
within 4 minutes
Quality control checklists ensure machines are inspected for
compliance at time intervals specific to the equipment and ?
clinical application
Which of the following actions will most likely prevent a needle stick
injury?
replacing sharps containers when they have reached their fill line
Which of the following pieces of information need to be on a
laboratory requisition form before a phlebotomist should proceed
with obtaining a blood specimen?
a specimen identification code
A patient is listening to a phlebotomist explain the venipuncture
process before initiating the blood draw. The patient communicates
their understanding but seems hesitant and confused. How should
the phlebotomist handle the situation?
the phlebotomist should find another way to phrase is the explanation and
invite the patient
The additive in a Pink Top Tube used in blood banking is which of the
following?
potassium ethylenediaminetetraacetic acid (EDTA)
If a patient verbally and physically refuses a venipuncture procedure,
the phlebotomist should do which of the following
,the phlebotomist should immediately report the refusal and actions taken to
their supervisor
What is the recommended allowance for a total volume of blood
drawn from a patient within a 24-hour period?
1%-5%
Which of the following is the proper way a phlebotomist should
dispose of a needle?
the phlebotomist should put it into sharps container, SAFETY CAPPED,
after withdrawing it from the patient arm
What is the order of draw?
1. blood culture bottles (2x/broth)
2. Discard tube (clear or red)
3. light blue top (sodium citrate)
4. red top (clot activator if plastic)
5. gold/tiger/marble top (silica/gel)
6. light green top (lithium heparin/gel)
7. dark green top (sodium heparin)
8. pink top (potassium EDTA)
9. lavender top (EDTA)
10. gray top (sodium fluoride/ potassium oxalate)
11. dark blue/royal blue: depending on if the tube has a red stripe then it
goes behind the light blue (no additive /yield serum), while if it has
blue/lavender line will be drawn after the lavender tube, the tube the
blue/lavender stripe has EDTA and yields plasma.
What are the blood culture bottle consist of?
1. aerobic- with oxygen
2. anaerobic- without oxygen
What type of wipe do you use for blood cultures?
chloraprep
What type of needle do you using butterfly needles or standard
needle?
have to use a butterfly needle is use to prevent the nutrient broth inside the
bottle from being introduced into the bloodstream
What does blood culture contain?
contain SPS (sodium polyanethole sulfonate) or nutrient broth
Do you use the same arm or hand site for blood cultures?
no you use a different arm or hand for the blood cultures
What other wipe can be use other than chloraprep for blood cultures?
can use iodine wipes
Where do blood cultures go for testing?
,microbiology
How many blood cultures test do you do on a pediatric patient?
only one blood culture test is needed
Why is the clear/red top tube(discard) needed?
the sample is drawn into this tube and then discarded to avoid the thrombin
and other cells polluting the samples drawn into different tubes
What other color tube is used a discard tube?
the red top tube
What is the common test for light blue tube?
D-Dimer
What is the additive in the light blue top tube?
sodium citrate- anticoagulant
What does the light blue top yield?
plasma
What lab does the light blue tube goes to?
hematology
What is unique about the light blue top tube?
has to be filled up to the top when drawing and only inverted 3-4 times
What are some test for light blue tube?
Prothrombin Time (PT)
Partial Thromboplastin Time (PTT)
Activated Partial Thromboplastin Time (aPPT)
What is PT test?
evaluates the extrinsic system of the coagulation cascade.
What is the PTT test?
evaluates the intrinsic system of the coagulation cascade
What is the aPPT test?
evaluates how long the patient blood takes to form a clot
What is PRP (light blue top tube)?
platelet-rich plasma therapy is a process where a patient's platelets are
harvested from their blood. those platelets are then injected back into the
body to accelerate the healing in particular area of concern
In the aPPT test what is added ?
an activator is added that speeds up the clotting time resulting in a
narrower reference range
What two test PT, PTT, or aPPT is used for the same functions?
PTT and aPPT
What is the common test for red top tube (plastic)?
common test is a pregnancy test
What type of additive is in the red top tube (plastic)?
, clot activator
What lab is used to test the red top tube (plastic)?
chemistry
What is the red top tube yield (plastic)?
serum
Do you have to invert the red top tube (plastic)?
there is no need to invert the tube
What other test does the red top tube be used for?
alcohol (ethanol/ETOH) levels (used chlorhexidine for alcohol testing not an
alcohol wipe)
What if the red top tube (glass) has no additive or anticoagulant, how
long will it take for the blood to clot?
in the tube the blood will clot within 30-60 minutes
What does PRF stand for?
platelet rich fibrin
What is the additive in the gold/tiger/marble tube?
silica (clot activator)
thixotropic (serum separator)
What does gold/tiger/marble top tube yield?
yields serum
What lab does testing for the gold/tiger/marble top tube?
chemistry
What another name for the marble/gold/tiger top tube?
SST- which stands for serum separation tube or sometimes its called a gel
tube
How many times do you invert tiger/marble/gold tube?
8 times
What are common test for the tiger/gold/marble tube?
1. Basic Metabolic Panel (BMP)
2. Complete/Comprehensive Metabolic Panel/Profile
3. Serum Pregnancy Test
4. Lipids and Cholesterol
What is the basic metabolic panel test?
this group of tests provides general information about the patient
metabolism, kidney function, electrolytes, and fluid balance
What is the complete/comprehensive metabolic panel/profile?
test is more comprehensive/complete look at the patient metabolism of
chemicals in their body, including kidney function, electrolytes, fluid
balance, liver function/performance
What is the lipids and chloestrol test?
Questions and Answers Latest Versions
2026 Top Rated
Which of the following is the best indication that a patient might be at
risk of syncope?
paleness and sweating
Why is it important for a phlebotomist to invert anticoagulant tubes?
to ensure proper mixing of blood and additive
Which of the following protects a patients information?
HIPPA
Which of the following needle sizes is NOT used for laboratory assays
but for collection of donor units of blood?
18-gauge
How many minutes within a collection of a urine sample should the
phlebotomist take the temperature of the specimen?
within 4 minutes
Quality control checklists ensure machines are inspected for
compliance at time intervals specific to the equipment and ?
clinical application
Which of the following actions will most likely prevent a needle stick
injury?
replacing sharps containers when they have reached their fill line
Which of the following pieces of information need to be on a
laboratory requisition form before a phlebotomist should proceed
with obtaining a blood specimen?
a specimen identification code
A patient is listening to a phlebotomist explain the venipuncture
process before initiating the blood draw. The patient communicates
their understanding but seems hesitant and confused. How should
the phlebotomist handle the situation?
the phlebotomist should find another way to phrase is the explanation and
invite the patient
The additive in a Pink Top Tube used in blood banking is which of the
following?
potassium ethylenediaminetetraacetic acid (EDTA)
If a patient verbally and physically refuses a venipuncture procedure,
the phlebotomist should do which of the following
,the phlebotomist should immediately report the refusal and actions taken to
their supervisor
What is the recommended allowance for a total volume of blood
drawn from a patient within a 24-hour period?
1%-5%
Which of the following is the proper way a phlebotomist should
dispose of a needle?
the phlebotomist should put it into sharps container, SAFETY CAPPED,
after withdrawing it from the patient arm
What is the order of draw?
1. blood culture bottles (2x/broth)
2. Discard tube (clear or red)
3. light blue top (sodium citrate)
4. red top (clot activator if plastic)
5. gold/tiger/marble top (silica/gel)
6. light green top (lithium heparin/gel)
7. dark green top (sodium heparin)
8. pink top (potassium EDTA)
9. lavender top (EDTA)
10. gray top (sodium fluoride/ potassium oxalate)
11. dark blue/royal blue: depending on if the tube has a red stripe then it
goes behind the light blue (no additive /yield serum), while if it has
blue/lavender line will be drawn after the lavender tube, the tube the
blue/lavender stripe has EDTA and yields plasma.
What are the blood culture bottle consist of?
1. aerobic- with oxygen
2. anaerobic- without oxygen
What type of wipe do you use for blood cultures?
chloraprep
What type of needle do you using butterfly needles or standard
needle?
have to use a butterfly needle is use to prevent the nutrient broth inside the
bottle from being introduced into the bloodstream
What does blood culture contain?
contain SPS (sodium polyanethole sulfonate) or nutrient broth
Do you use the same arm or hand site for blood cultures?
no you use a different arm or hand for the blood cultures
What other wipe can be use other than chloraprep for blood cultures?
can use iodine wipes
Where do blood cultures go for testing?
,microbiology
How many blood cultures test do you do on a pediatric patient?
only one blood culture test is needed
Why is the clear/red top tube(discard) needed?
the sample is drawn into this tube and then discarded to avoid the thrombin
and other cells polluting the samples drawn into different tubes
What other color tube is used a discard tube?
the red top tube
What is the common test for light blue tube?
D-Dimer
What is the additive in the light blue top tube?
sodium citrate- anticoagulant
What does the light blue top yield?
plasma
What lab does the light blue tube goes to?
hematology
What is unique about the light blue top tube?
has to be filled up to the top when drawing and only inverted 3-4 times
What are some test for light blue tube?
Prothrombin Time (PT)
Partial Thromboplastin Time (PTT)
Activated Partial Thromboplastin Time (aPPT)
What is PT test?
evaluates the extrinsic system of the coagulation cascade.
What is the PTT test?
evaluates the intrinsic system of the coagulation cascade
What is the aPPT test?
evaluates how long the patient blood takes to form a clot
What is PRP (light blue top tube)?
platelet-rich plasma therapy is a process where a patient's platelets are
harvested from their blood. those platelets are then injected back into the
body to accelerate the healing in particular area of concern
In the aPPT test what is added ?
an activator is added that speeds up the clotting time resulting in a
narrower reference range
What two test PT, PTT, or aPPT is used for the same functions?
PTT and aPPT
What is the common test for red top tube (plastic)?
common test is a pregnancy test
What type of additive is in the red top tube (plastic)?
, clot activator
What lab is used to test the red top tube (plastic)?
chemistry
What is the red top tube yield (plastic)?
serum
Do you have to invert the red top tube (plastic)?
there is no need to invert the tube
What other test does the red top tube be used for?
alcohol (ethanol/ETOH) levels (used chlorhexidine for alcohol testing not an
alcohol wipe)
What if the red top tube (glass) has no additive or anticoagulant, how
long will it take for the blood to clot?
in the tube the blood will clot within 30-60 minutes
What does PRF stand for?
platelet rich fibrin
What is the additive in the gold/tiger/marble tube?
silica (clot activator)
thixotropic (serum separator)
What does gold/tiger/marble top tube yield?
yields serum
What lab does testing for the gold/tiger/marble top tube?
chemistry
What another name for the marble/gold/tiger top tube?
SST- which stands for serum separation tube or sometimes its called a gel
tube
How many times do you invert tiger/marble/gold tube?
8 times
What are common test for the tiger/gold/marble tube?
1. Basic Metabolic Panel (BMP)
2. Complete/Comprehensive Metabolic Panel/Profile
3. Serum Pregnancy Test
4. Lipids and Cholesterol
What is the basic metabolic panel test?
this group of tests provides general information about the patient
metabolism, kidney function, electrolytes, and fluid balance
What is the complete/comprehensive metabolic panel/profile?
test is more comprehensive/complete look at the patient metabolism of
chemicals in their body, including kidney function, electrolytes, fluid
balance, liver function/performance
What is the lipids and chloestrol test?
