1|Page
Phlebotomy NHA Certification Questions with
100% Verified Answers 2025 | 2026
heel sticks are performed on which patients? - ANSWER infants
less than 1 year old
Order of Draw for Capillary Specimens - ANSWER After blood
gases
1.) Lavender tube
2.) Tubes with other additives
3.) Tubes WITHOUT additives
Which are the preferred sites for dermal punctures - ANSWER
the distal segment of the third or fourth finger of the non-
dominant hand
What are the common tests for lavender EDTA tube - ANSWER
CBC, CBC with differential, ESR, sickle cell screening
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What are the additives in green top tube? - ANSWER heparin,
sodium, lithium
What actions should the phlebotomist take to verify the quality
of venipuncture supplies before beginning a blood draw? -
ANSWER inspect the integrity of the seal of the needle, ensure
that there are no tears or opening of the packaged supplies
A phlebotomist receives orders to draw an infant screening
card, O2 levels, bilirubin and DNA, which one should be drawn
first - ANSWER oxygen
pneumatic tube system - ANSWER System in which air pressure
transports tubes carrying supplies, requisitions, or some lab
specimens from one hospital unit or department to another
If a patient has an IV, where do you draw the blood from -
ANSWER In the other arm, unless that is not an option, in that
case you would draw it downstream from the IV
What is the preferred site for veinpuncture? - ANSWER Median
Antecubital
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What is the correct order of draw - ANSWER blood culture, light
blue, red, green, lavender, gray yellow, dark blue
What additive does the light blue tube contain? - ANSWER
sodium citrate
What additive does the gray tube contain? - ANSWER Sodium
fluoride/potassium oxalate
What is the maximum depth a lancet should be for an infant? -
ANSWER 2mm
A patient suddenly becomes pale and short of breath, what are
they experiencing and then lose consciousness? - ANSWER
syncope
What is the order of draw for the tubes for these tests: WBC,
PTT and blood glucose? - ANSWER light blue, lavender and gray
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What is the first step a medical assistant should take before
performing a capillary puncture? - ANSWER Identify the patient
What special handling must be applied to a bilirubin specimen -
ANSWER The specimen must be chilled
Which non-blood specimen is light sensitive? - ANSWER Sputum
specimen
What method of collection for a urine culture and sensitivity
test? - ANSWER midstream, clean-catch
Why doe we draw blood in a particular order? - ANSWER To
avoid cross contamination
What blood specimen should be put in an ice bath within 30
minutes after drawing? - ANSWER arterial blood gas
If someone is allergic to alcohol, what should you use to clean
the site? - ANSWER chlorhexidine
Phlebotomy NHA Certification Questions with
100% Verified Answers 2025 | 2026
heel sticks are performed on which patients? - ANSWER infants
less than 1 year old
Order of Draw for Capillary Specimens - ANSWER After blood
gases
1.) Lavender tube
2.) Tubes with other additives
3.) Tubes WITHOUT additives
Which are the preferred sites for dermal punctures - ANSWER
the distal segment of the third or fourth finger of the non-
dominant hand
What are the common tests for lavender EDTA tube - ANSWER
CBC, CBC with differential, ESR, sickle cell screening
,2|Page
What are the additives in green top tube? - ANSWER heparin,
sodium, lithium
What actions should the phlebotomist take to verify the quality
of venipuncture supplies before beginning a blood draw? -
ANSWER inspect the integrity of the seal of the needle, ensure
that there are no tears or opening of the packaged supplies
A phlebotomist receives orders to draw an infant screening
card, O2 levels, bilirubin and DNA, which one should be drawn
first - ANSWER oxygen
pneumatic tube system - ANSWER System in which air pressure
transports tubes carrying supplies, requisitions, or some lab
specimens from one hospital unit or department to another
If a patient has an IV, where do you draw the blood from -
ANSWER In the other arm, unless that is not an option, in that
case you would draw it downstream from the IV
What is the preferred site for veinpuncture? - ANSWER Median
Antecubital
,3|Page
What is the correct order of draw - ANSWER blood culture, light
blue, red, green, lavender, gray yellow, dark blue
What additive does the light blue tube contain? - ANSWER
sodium citrate
What additive does the gray tube contain? - ANSWER Sodium
fluoride/potassium oxalate
What is the maximum depth a lancet should be for an infant? -
ANSWER 2mm
A patient suddenly becomes pale and short of breath, what are
they experiencing and then lose consciousness? - ANSWER
syncope
What is the order of draw for the tubes for these tests: WBC,
PTT and blood glucose? - ANSWER light blue, lavender and gray
, 4|Page
What is the first step a medical assistant should take before
performing a capillary puncture? - ANSWER Identify the patient
What special handling must be applied to a bilirubin specimen -
ANSWER The specimen must be chilled
Which non-blood specimen is light sensitive? - ANSWER Sputum
specimen
What method of collection for a urine culture and sensitivity
test? - ANSWER midstream, clean-catch
Why doe we draw blood in a particular order? - ANSWER To
avoid cross contamination
What blood specimen should be put in an ice bath within 30
minutes after drawing? - ANSWER arterial blood gas
If someone is allergic to alcohol, what should you use to clean
the site? - ANSWER chlorhexidine
