A BLS certificate isn't just a card you tuck behind your hospital ID. It's documented proof that you can recognize a cardiac arrest, deliver high-quality CPR, run an AED without fumbling, and clear an airway when seconds matter. Employers in healthcare — hospitals, clinics, dental offices, EMS, dialysis units, even some daycares — won't put you on the schedule without one.
You'll see the credential printed two ways: BLS Provider (American Heart Association) or BLS for Healthcare Providers (American Red Cross). Both meet the same baseline. Both follow the most recent 2020 ECC Guidelines, with the 2025 focus updates layered in. And yes — both expire in two years.
The skills you're tested on look simple on paper. Compress hard. Compress fast. Don't lean on the chest. Recognize when a rhythm is shockable. Switch compressors every two minutes. The catch? Doing all of it under pressure, on a real patient, while a code team works around you. That's why the practical exam exists, and it's why the written test isn't just a formality.
If you're prepping right now, run through our How to Pass the BLS Practice Test 2026 May — Exam Prep guide alongside the official Basic Life Support (BLS) Guide: Skills and Certification. They cover the same skills the proctor will grade you on.
Healthcare students get the BLS requirement on day one. Nursing programs, PA school, dental hygiene, paramedic programs, respiratory therapy — all of them require an active card before clinicals. So do most allied-health roles after graduation. If you're working bedside, in pre-hospital care, or in any setting where a patient could code in front of you, your employer mandates it.
Outside of clinical work, the answer is messier. Lifeguards, personal trainers, and some childcare staff are sometimes asked for BLS instead of regular CPR. That's usually overkill — a Heartsaver CPR/AED card covers them — but if your job description specifies BLS, get BLS. Don't argue with HR.
Travel nurses moving between states. Per-diem techs picking up a shift at a new facility. Dental assistants switching from a small private practice to a hospital-affiliated clinic. They all assume their old card is fine, until credentialing flags it. How long does BLS certification last? Two years from the issue date — not the renewal date, not the course date if they're different. Check the back of the card before your hire date, not after.
The course itself runs about 4 to 4.5 hours for first-timers. Renewals trim that down to roughly 3. The content breaks into a few core modules:
The written exam is 25 questions, multiple choice. You need 84% to pass — that's no more than 4 wrong. The skills test is pass/fail. Skip a critical action like checking for responsiveness, or compress at the wrong depth, and the instructor stops the scenario. You can usually retest the same day.
Three formats exist, and they're not interchangeable from an employer's perspective. A fully online BLS course (with no in-person skills check) is rarely accepted by hospitals — most credentialing offices reject it outright. A blended course (HeartCode BLS or Red Cross blended) splits theory online and skills in-person; this is widely accepted. A traditional in-person course covers everything in one sitting. If you're not sure what your employer wants, dig through our breakdown of BLS Certification Online: Courses, Cost, and What Counts before you pay for anything.
Cost varies more than you'd think. AHA in-person courses run $60 to $110 in most cities. Red Cross blended courses sit around $80 to $100. Online-only courses advertise at $20 — but if your job rejects them, that $20 was wasted. Ask your employer's credentialing office before you book.
The pass rate for BLS is high — about 90%-plus on first attempt — but the people who fail almost always make the same mistakes. They skip the pre-course modules. They skim the algorithms instead of memorizing them. They show up rusty on compression depth and let muscle memory take over from the last code they ran two years ago. Don't be that person.
Compression depth and rate. Adults: at least 2 inches, no more than 2.4 inches, at 100-120 per minute. Kids: about 2 inches. Infants: about 1.5 inches. The instructor's manikin will tell on you if you go too shallow or too deep. Practice on a couch cushion if you have to — get the rhythm of "Stayin' Alive" stuck in your head.
The shockable rhythms. You need to recognize ventricular fibrillation and pulseless ventricular tachycardia at a glance. Asystole and PEA are not shockable, no matter how much the family is begging. The AED will tell you, but you should know before it does.
Switching compressors every two minutes. Quality drops fast — even fit people get sloppy after 90 seconds of real compressions. The two-minute swap isn't a suggestion. Practice the verbal handoff so it doesn't waste compressions when you're tested on the team scenario.
Most testing centers let you retake the written exam once on the same day, free. The skills test is similar — instructors usually walk you through the missed checkpoint, give you 10 minutes to practice, and re-run the scenario. Two failures in a row, though, and you'll need to re-register for the full course. Read the algorithms. Practice with the manikin during the break. Ask the instructor what they're specifically grading on — they'll tell you.
Once you pass, your eCard hits your inbox within 24 hours. Print it, save the PDF, and submit it to your credentialing office before the start of your next shift. If you want a final practice run, our How to Pass the BLS Practice Test 2026 May — Exam Prep mirrors the question style and difficulty of the real thing — better to miss a question now than on test day.
Your BLS card expires on the last day of the month it was issued, two years out. So if you certified on March 14, 2026, you've got until March 31, 2028 — not the 14th. That extra grace at the month's end matters more than you'd think when you're juggling shift swaps and credentialing deadlines.
Renewal courses are shorter, cheaper, and assume you already know the basics. AHA's renewal sits around 2.5 to 3 hours. Red Cross runs similar. The written test is still 25 questions, and the skills check is the same. Don't get cocky because you've done it before — instructors fail renewal students all the time for compression-rate drift, sloppy AED operation, or skipping the pulse check. Two years of habit is plenty of time to develop bad ones.
HeartCode BLS is the AHA's blended-renewal flagship. You watch the eLearning modules at home, work through adaptive scenarios, then book a 30 to 45 minute "skills session" at any AHA training center. It's by far the most flexible renewal option — and yes, hospitals accept it. Your eCard is identical to the one you'd get from a full classroom course.
This trips people up more than any other part of the credential. AHA cards are accepted nationwide, no questions asked. Red Cross BLS for Healthcare Providers is also accepted by virtually every U.S. hospital. ASHI (American Safety and Health Institute) and NSC (National Safety Council) BLS cards are accepted by some employers, rejected by others. Smaller agencies — National CPR Foundation, ProCPR, ProTrainings — issue cards that look official but get rejected at most major hospitals.
Before you sign up for any course, do this: open your employer's credentialing-policy PDF, search for "BLS," and read the acceptable-issuer list. If your provider isn't on it, walk away. Doesn't matter how cheap or convenient. A $30 card you can't use is more expensive than a $90 card you can.
BLS cards from AHA and Red Cross are valid in all 50 states. There's no state-specific BLS license. That said, individual employers can have stricter standards — a teaching hospital in Boston might require AHA only, while a community clinic in the same city accepts Red Cross. Your nursing license has reciprocity rules; your BLS card just needs to be from an accepted issuer for the specific employer.
The provider manual has a stack of algorithms — flow charts that walk you through every cardiac arrest scenario. You don't need to recite them word-for-word, but the proctor will expect you to follow the steps without prompting. The four you'll be tested on most:
If you can sketch these from memory on the back of an envelope, you're ready for the written test. Most failed exams come down to one of these four — usually a misordered step or skipping the pulse check.
Instructors keep informal tallies of why students get stopped during the skills exam. The repeat offenders:
Your eCard arrives by email within 24 hours, sometimes within an hour if the instructor uploads on the spot. The card has a unique ID number that hospitals can verify online with AHA or Red Cross. Save the PDF in two places — your phone, and a cloud folder you can access from any device. Print one copy for your wallet if your hospital still accepts paper, but most have moved to digital-only verification.
Add the expiration date to your calendar with a 90-day reminder. Most credentialing offices send their own reminder, but don't rely on it. Better to book the renewal early than to discover at 6 AM on a shift day that your card expired last week and you can't legally clock in.
Get your BLS certificate from AHA or Red Cross. Pick the format that matches your schedule — fully in-person if you want it done in one go, blended if you'd rather knock out the theory at home. Budget $60 to $110 and a single afternoon. Read the provider manual before you walk in. Practice compressions on something firm. Memorize the shockable rhythms. Know the high-quality CPR numbers cold: rate 100-120, depth 2 inches for adults, full recoil, minimize interruptions, switch every two minutes.
Once you've got the card, set a calendar reminder for 90 days before expiration. Renewal is shorter and cheaper than starting over, and you'll keep your credentialing file clean. Two years from now, you'll be glad you did.