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Phlebotomist Interview Questions

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Whether you are preparing to interview a candidate or applying for a job, review our list of top Phlebotomist interview questions and answers.

  1. What would you do if a patient fainted when you were drawing blood? See answer
  2. What environments have you worked in as a phlebotomist? Which was your favourite? See answer
  3. What credentials do you have that make you a good phlebotomist? See answer
  4. What are some of the reasons a person can faint when giving blood? See answer
  5. What is a hematoma and how can you prevent one? See answer
  6. If a patient is scared to have their blood drawn, what do you do? See answer
  7. How do you stay motivated when a lot of the work a phlebotomist does is repetitive? See answer
  8. What do you tell patients to do before they have blood drawn? See answer
  9. What skills do you have that make you a good phlebotomist? See answer
  10. What information should be included on a sample tube? See answer
  11. What is the process for collecting blood? See answer
  12. What challenges do you face as a phlebotomist and how do you overcome them? See answer
  13. Are you comfortable taking blood samples from people of any age? See answer
  14. What is the biggest mistake you’ve made as a phlebotomist? What did you learn from it?
  15. What would you do if you can’t find a vein to draw blood from?
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Our mission

Indeed’s Employer Resource Library helps businesses grow and manage their workforce. With over 15,000 articles in 6 languages, we offer tactical advice, how-tos and best practices to help businesses hire and retain great employees.

Read our editorial guidelines

15 Phlebotomist Interview Questions and Answers

What is the biggest mistake you've made as a phlebotomist? What did you learn from it?

The aim of this question is to assess the candidate's ability to limit mistakes in their work and learn from the mistakes they do make. What to look for in an answer: 

  • Honest when talking about their mistakes
  • Willingness to learn from their errors
  • Ability to limit errors in their work 

Example:

"The biggest mistake I've made as a phlebotomist was mixing up the labels on two patients' samples. The patients had come in within minutes of each other, so I didn't have time to label the samples between visits. When they both left, I labelled the test tubes wrongly and we didn't realise it until the test results came back. We had to call the patients and get them to come in again to take a new sample. I learned to always label samples immediately to avoid mix-ups." 

What would you do if a patient fainted when you were drawing blood?

The aim of this question is to assess the candidate's ability to make decisions quickly while under pressure. What to look for in an answer: 

  • Medical expertise
  • Strong problem-solving skills
  • Ability to work well under pressure

Example:

"If a patient fainted when I was drawing blood, I would remove the needle and cover the area with a cotton bud and band-aid. I would then lie them down and elevate their knees to increase blood flow to their head. I would call for a colleague to get them water and something sweet to eat when they wake up to raise their blood sugar."

What environments have you worked in as a phlebotomist? Which was your favourite?

The aim of this question is to assess the candidate's experience to determine if they are familiar with your work environment. What to look for in an answer: 

  • Experience as a phlebotomist
  • Preference for the work environment you offer
  • Ability to adapt to different environments

Example:

"I have been a phlebotomist for five years. Over the years, I have worked at donation centres, hospitals, and plasma centres. I preferred working at a donation centre, such as yours, because no one was sick or upset, they were just coming in to donate blood and help out their community. It was great working in such an uplifting environment."

What credentials do you have that make you a good phlebotomist?

The aim of this question is to assess the candidate's educational background and experience to determine if they have the necessary credentials. What to look for in an answer: 

  • Completion of a phlebotomy training course
  • Experience as a phlebotomist
  • Willingness to undergo further training if necessary

"Three years ago, I completed a phlebotomy training course with The Clinical and labouratory Standards Institute. I got hands-on training as I completed a practicum with a local health centre, and had extensive in-class training. I passed the Canadian Phlebotomy Technician certification exam, so I am a certified phlebotomist. 

Example:

What are some of the reasons a person can faint when giving blood?

The aim of this question is to test the candidate's technical knowledge and ability to help prevent their patients from fainting. What to look for in an answer: 

  • In-depth industry knowledge
  • Willing to prevent fainting when possible
  • Ability to help patients when they do faint

Example:

"One of the biggest reasons people faint when giving blood is because your blood pressure can drop or your heart rate can slow down suddenly, leading to light-headedness, nausea, or fainting. Another reason is dehydration. It's important to drink a lot the day before your appointment to avoid this."

What is a hematoma and how can you prevent one?

The aim of this question is to assess the candidate's technical knowledge and ability to prevent hematomas as they can be painful. What to look for in an answer: 

  • Knowledge of what a hematoma is
  • Ability to prevent hematomas
  • Concern for patients' comfort

Example:

"A hematoma is a collection of blood that is outside of blood vessels, causing bruising and tenderness. To prevent a hematoma, I take my time when drawing blood. I make sure I don't insert the needle too deeply and before I remove the needle, I take off the tourniquet. When I take the needle out, I press a cotton ball to the site and bandage it swiftly."

If a patient is scared to have their blood drawn, what do you do?

The aim of this question is to assess the candidate's interpersonal skills and ability to reassure patients. What to look for in an answer: 

  • Strong interpersonal and communication skills
  • Ability to sympathise with patients
  • Willing to reassure patients that are scared

Example:

"When adult patients are scared to have their blood drawn, I will explain the process, let them know that they will be okay, and distract them with conversation. If it's a younger child, I will let the parents come in with them as it provides a welcome distraction. I also try to distract the child by telling them to choose a sticker they will get afterwards."

How do you stay motivated when a lot of the work a phlebotomist does is repetitive?

The aim of this question is to assess the candidate's motivation behind their work to ensure they are passionate and committed to the job, regardless of the routine work. What to look for in an answer: 

  • Willingness to perform routine work
  • Passion for their carer
  • Self-motivated

Example:

"I actually enjoy the routine work even though it gets repetitive. The repetition helps me get better at my job and improve my skills. I also have the opportunity to meet and talk to plenty of people while drawing their blood, so that makes the job more interesting and motivates me to do my best."

What do you tell patients to do before they have blood drawn?

The aim of this question is to test the candidate's knowledge of proper preparation for blood work. What to look for in an answer: 

  • Strong communication skills
  • Knowledge of what patients should do before and after having their blood drawn
  • Experience as a phlebotomist

Example:

"When patients make an appointment to have their blood drawn, I always tell them to drink plenty of water beforehand and the day before. This makes veins plumper and easier to access. I also tell them to eat a well-balanced meal to prevent fainting. I ask them to wear layers or a short-sleeved shirt as well to make taking the sample easier for both of us."

What skills do you have that make you a good phlebotomist?

The aim of this question is to assess the candidate's skill set and determine if they would be a good fit for your team. What to look for in an answer: 

  • Possession of skills you're looking for in a candidate
  • Confidence in their skills
  • Understanding of the role

Example:

"My greatest skills as a phlebotomist are my communication skills and my attention to detail. My communication skills help me comfort and reassure patients that may be scared, making the process easier for them. My attention to detail ensures that all samples are organised and I take them properly, eliminating mistakes in my work."

What would you do if you can't find a vein to draw blood from?

The aim of this question is to assess the candidate's technical knowledge and ability to ask for help when they need it. What to look for in an answer: 

  • Knowledge of the policy regarding the number of attempts they can make to draw blood (will depend on your facility, but it's usually two attempts)
  • Understanding of how to find faint veins
  • Willing to ask for help from their colleagues when necessary

Example:

"If I couldn't find a vein to draw blood from, I would ask the patient to drink a glass of water and wait to see if that helps because dehydration can cause veins to be faint. If I still can't find a vein, I would apply a hot washcloth to the area or swing the patient's arm to encourage blood to enter the area. If both steps failed, I would ask one of my superiors to take a look."

What information should be included on a sample tube?

The aim of this question is to test the candidate's technical knowledge of the important information needed on a sample tube. What to look for in an answer: 

  • Experience as a phlebotomist
  • Attention to detail
  • Knowledge of the information that should be included on a sample tube

Example:

"A sample tube should include the patient's personal information, including their full name and health card number. It should also include the date and time the sample was taken, as well as the phlebotomist's initial or signature."

What is the process for collecting blood?

The aim of this question is to test the candidate's technical knowledge and ability to follow procedures. What to look for in an answer: 

  • Experience drawing blood
  • Ability to adapt their process if necessary
  • Willing to follow detailed instructions

Example:

 "I start by tying a tourniquet around the patient's arm, two to three inches above where I plan to puncture. Then, I disinfect the area and palpate the veins to find the best one to collect blood from. Once I find one, I insert the sterile syringe at a 15- to 30-degree angle and draw blood out, putting it into a sample tube. I remove the tourniquet then the needle, and bandage the puncture site."

What challenges do you face as a phlebotomist and how do you overcome them?

The aim of this question is to assess the candidate's knowledge of common challenges phlebotomists face and their ability to overcome them. What to look for in an answer: 

  • Understanding of the role and challenges associated with it
  • Strong ideas for overcoming common challenges
  • Excellent problem-solving skills

Example:

 "One of the biggest challenges phlebotomists face is patients that are scared of needles or having their blood drawn. It can be a frightening experience for some, so I try to overcome this challenge by reassuring patients. I give them as much time as they need until they're ready, and be as gentle as possible when I draw blood. I want to create a positive experience for them so they aren't as scared next time."

Are you comfortable taking blood samples from people of any age?

The aim of this question is to assess the candidate's experience and ability to work with the age range of patients you have at your facility. What to look for in an answer: 

  • Experience working with patients of any age
  • Willing to adapt their process for different patients
  • Comfortability with any age 

Example:

 "I have been a phlebotomist for ten years, so I have worked with patients of every age, from newborns to the elderly. I am comfortable working with any patients, no matter how old or young, as I can easily adapt my approach to anyone."

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