BLS Certification Explained

BLS certification stands for Basic Life Support certification. It is a credential that shows you have learned how to perform CPR (cardiopulmonary resuscitation), use an automated external defibrillator (AED), and give first aid to a person whose heart has stopped or who is choking. The certification comes from the American Heart Association, the organization that sets the standards for what rescuers need to know.

When you complete a BLS course, you learn hands-on skills in a classroom or online setting, then take a test to show you understand the material. If you pass, you receive a card that is valid for two years. Many jobs require this card — nurses, paramedics, dentists, and other healthcare workers must have it. Some employers in non-medical fields also ask for it, particularly if the job involves working with children or in settings where a medical emergency is likely.

The certification is not the same as a license. A license gives you permission to do a job; a certification shows you have met a standard set by an outside organization. You can hold a BLS card without being a nurse or doctor, and many people do — parents, lifeguards, gym staff, and office workers all carry BLS certification.

Key Takeaways

  • BLS certification is a credential from the American Heart Association that proves you can perform CPR, use an AED, and respond to choking.
  • The card is valid for two years and requires both a classroom or online course and a passing test to obtain.
  • Many healthcare jobs require BLS certification as a condition of employment, but non-medical employers sometimes ask for it too.
  • You do not need a medical license or healthcare job to get BLS certified — anyone can take the course.
  • Renewal requires taking the course again before your card expires; you cannot renew by test alone.

What You Learn in a BLS Course

A BLS course covers the steps to perform CPR on an adult, child, and infant. You learn the correct hand placement on the chest, how fast to push (at least 100 compressions per minute), and how to give rescue breaths if you are trained to do so. The course also teaches you how to recognize when someone is in cardiac arrest — when their heart has stopped beating and they are unresponsive.

You will also learn to use an AED, the machine that delivers an electric shock to restart a stopped heart. The course shows you how to turn it on, where to place the pads on the chest, and what to do while the machine is analyzing the person's heart rhythm. Most of the course is hands-on practice with a mannequin so you can feel the right depth and speed of compressions before you take the test.

The course includes first aid for choking — the Heimlich maneuver for adults and children, and back blows and chest thrusts for infants. You learn to recognize the signs that someone is choking and when to call 911. Some courses also cover recovery position, how to place an unconscious person on their side so their airway stays open.

Who Needs BLS Certification

Healthcare workers are the largest group that must hold BLS certification. Nurses, physicians, physician assistants, respiratory therapists, and emergency medical technicians (EMTs) all need it. Dentists and dental hygienists are required to have it because they work in the mouth and throat, where airway emergencies can happen. Many hospitals and clinics will not hire someone without a current BLS card.

Some non-medical employers also require or strongly prefer BLS certification. Childcare centers, preschools, and after-school programs often ask staff to be certified because they are responsible for children. Fitness facilities, swimming pools, and summer camps may require it. Some corporate offices ask for it as part of their workplace safety program, though this is less common.

You may also choose to get certified even if your job does not require it. Parents sometimes take the course to feel prepared in an emergency at home. Teachers, coaches, and volunteers who work with groups of people often get certified on their own. The course takes only a few hours, and the card gives you confidence that you can help if someone collapses.

How to Get BLS Certified

You can take a BLS course through several routes. The American Heart Association offers courses directly through hospitals, clinics, fire departments, and training centers in your area. You can search for a course on the American Heart Association website by entering your zip code. Red Cross also offers BLS training and certification, though the standards are slightly different from the American Heart Association.

Courses are offered in person and online. An in-person course usually takes four to six hours and includes classroom instruction and hands-on practice with a mannequin. You will practice CPR compressions, rescue breaths, and AED use with an instructor watching. At the end, you take a written test and a skills test — the instructor watches you perform CPR on the mannequin to make sure you are doing it correctly.

Online courses let you watch videos and read material at your own pace, but you still need to come to a testing center in person for the skills portion. Some employers or schools have instructors on staff who can give the course in-house. The cost varies — courses typically range from $50 to $150 depending on where you take them and whether it is in person or hybrid.

How Long BLS Certification Lasts

Your BLS card is valid for two years from the date you pass the course. After two years, your certification expires and you can no longer claim to be BLS certified. If your job requires it, you must renew before the card expires or you may lose your position or be pulled from patient care.

To renew, you must take the course again — you cannot renew by test alone or by watching a video. Some training centers offer a shorter renewal course that takes one to two hours if you have held certification before, but you still attend in person and take both a written and skills test. Mark your calendar or set a reminder a few months before your card expires so you have time to find a course and schedule it.

If your card has already expired, you can still take a full BLS course to get recertified. There is no penalty for letting it lapse — you straightforward start over with a new course and a new two-year period.

BLS Certification Versus Other Certifications

BLS is the most basic level of emergency response training. ACLS certification (Advanced Cardiovascular Life Support) is a step up — it is for healthcare providers who need to manage cardiac emergencies in a hospital or ambulance setting. ACLS teaches how to give medications, interpret heart rhythms on an EKG machine, and manage airways with advanced equipment. You usually need BLS certification before you can take ACLS.

First Aid certification is different from BLS. First Aid teaches you how to treat injuries like cuts, burns, sprains, and poisoning. BLS focuses only on life-threatening emergencies where someone is unconscious or not breathing. Many people get both certifications — they often come as a package in a single course. Some employers require both, while others ask for BLS only.

EMT certification is a much longer credential that requires classroom hours, clinical experience, and state registration. EMTs are trained to respond to emergencies in the field and transport patients to the hospital. BLS is a prerequisite for EMT training, but the two are not the same thing.

What Happens If You Let Your Certification Expire

If your BLS card expires and you are working in a job that requires it, you are no longer in compliance with your employer's requirements. Healthcare facilities take this seriously — you may be reassigned to duties that do not involve patient care, suspended, or terminated if you do not renew quickly. Some employers give a grace period of a few weeks, but do not count on it.

If you are not working in a field that requires BLS, an expired card straightforward means you no longer hold the credential. There is no fine or legal consequence. However, if you ever need to use CPR in an emergency, the fact that your card is expired does not change what you should do — if someone is unconscious and not breathing, you should still perform CPR and call 911.

The best approach is to renew before your card expires. Set a reminder on your phone or calendar three months before the expiration date. This gives you time to find a course, schedule it, and complete it without rushing.

Frequently Asked Questions

Can I get BLS certified online?

You can take the classroom part of a BLS course online, but you must go to a testing center in person to demonstrate CPR skills on a mannequin and take the final test. Some hybrid courses let you watch videos at home and then attend a shorter in-person session for practice and testing. You cannot get fully certified without an in-person skills test.

How much does BLS certification cost?

BLS courses typically cost between $50 and $150, depending on where you take them and whether it is in person or hybrid. Some employers offer free courses to their staff. Renewal courses are sometimes cheaper than initial certification courses because they are shorter. Prices vary by location and training center.

What if I fail the BLS test?

If you do not pass the written or skills test, most training centers let you retake it the same day or within a few days at no extra cost. If you fail the skills test, the instructor will tell you what you did wrong — usually hand placement, compression depth, or compression speed — and you can practice and try again.

Do I need BLS certification to work as a nurse?

Yes, virtually all nursing jobs require current BLS certification from the American Heart Association. You must have it before you are hired, and you must keep it current while you work. Some hospitals will not let you start your first shift without a valid BLS card.

Can I use my BLS certification in another state?

Yes, BLS certification from the American Heart Association is recognized nationwide. Your card is valid in any state. However, some states or employers may have additional requirements on top of BLS, so check with your employer or licensing board if you are moving or changing jobs.