Free BLS, ACLS, PALS & CPR Scenarios and Megacode Simulator
Interactive scenarios are one of the best ways to practice emergency response before you need it in real life. This page brings together free BLS, CPR, ACLS, and PALS scenarios that walk you through realistic emergencies step by step and ask you to choose what to do next.
Some of these simulations are built for healthcare providers preparing for BLS, ACLS, or PALS certification and recertification. Others are designed for parents, teachers, coaches, lifeguards, workplace responders, and anyone who wants to feel more confident in an emergency. Each scenario is designed to help you recognize the situation, make a decision under pressure, and understand why that decision is right or wrong.
All scenarios on this page run in your browser and are free to use. You can practice on your phone, tablet, or computer, whether you want to review CPR basics, work through a BLS megacode, or sharpen your response to common emergencies.
Basic Life Support
Practice BLS scenarios and megacode cases covering adult, child, and infant CPR, AED use, choking, and team-based resuscitation for healthcare providers.
Get certified in Basic Life SupportOpioid Overdose Unresponsive Post Surgical Patient
You are a nurse on a surgical floor doing routine post-op rounds. Your patient is a 54-year-old woman who had a total abdominal hysterectomy 6 hours ago. She received morphine and fentanyl in recovery, then hydromorphone IV for breakthrough pain. When you enter the room for her next vital sign check, she does not respond to your greeting. Her breathing is slow and shallow, about 4 to 5 breaths per minute, and her pupils are pinpoint.
Unresponsive Infant on the Pediatric Unit
You are a nurse on the pediatric unit. A monitor alarm pulls you into the room of a 4-month-old infant admitted for bronchiolitis and RSV. The baby is in a crib and is not moving. There is no visible breathing effort, and the color looks wrong. You are the first person in the room, and you are alone.
Unwitnessed Cardiac Arrest on a Medical Surgical Unit
You are a nurse on a busy medical-surgical unit. A 43-year-old male patient admitted for abdominal pain has been stable all day. You enter his room to give scheduled afternoon medications. The room is quiet, the TV is off, and the patient is completely still in bed. You call his name and tap his shoulders, but there is no response.
CPR, AED & First Aid Certification
Practice CPR, AED, and First Aid scenarios built for everyday emergencies involving adults, children, and infants at home, at work, at school, and in public places.
Get certified in CPR, AED & First Aid CertificationAdult Choking
You’re in a busy restaurant during dinner service. A man at the next table suddenly stands up, grabs his throat, and looks panicked. His face is turning red, he can’t speak, and the people around him are unsure what to do. A few seconds later, chairs are moving, people are shouting, and all eyes are on you.
Adult Collapse at Home
It’s early evening and you’re at home with a family member. One moment they’re standing in the kitchen talking to you, and the next they suddenly collapse onto the floor. You’re alone in the house, your phone is on the counter nearby, and there is no AED immediately available.
Adult Collapse in Public
You’re at a busy public gym on a weekday evening. Music is playing, people are moving between machines, and a man in his 50s suddenly collapses near the cardio area. For a second, nobody reacts. Then a small crowd starts forming. Someone says, “I think he just fainted.” You notice an AED mounted on the wall about 20 meters away.
Child Collapse at School
It’s late morning at school, and children are lining up after recess. A 7-year-old suddenly drops to the ground near the playground gate. A teacher kneels beside the child, looking alarmed, while several other children start crowding around. The school office has an AED, and another staff member is nearby.
Gasping Is Not Normal Breathing
You’re in a busy shopping mall on a Saturday afternoon. A man in his 60s suddenly collapses near the entrance. People stop, stare, and start talking all at once. One person kneels beside him and says, “He’s making sounds, I think he’s breathing.” Another person is already taking out their phone, but nobody has taken control yet. An AED is mounted on the wall nearby.
Infant Choking
You’re at a busy family café on a weekend afternoon. An 8-month-old infant in a high chair suddenly goes quiet while eating. The baby looks distressed, cannot cry normally, and is struggling to breathe. A parent nearby is panicking, and several people are standing close, unsure what to do. A staff member says there is an AED in the building.
Infant Unresponsive
You’re at a small daycare just after lunch. An 8-month-old infant suddenly becomes limp and unresponsive while being carried by a staff member. The baby is placed on a padded play mat, and everyone freezes for a second. One employee is nearby, and there is an AED in the front office.