CPR BLS Exam 2024/2025 AHA-Why is defibrillation important?
- It can restore a regular cardiac rhythm (An AED can identify an abnormal heart rhythm that needs a shock. The AED can then deliver a shock that can convert a rhythm back to normal.)
While performing high-quality CPR on an adult pati...
why is defibrillation important it can restore a regular cardiac rhythm an aed can identify an abnormal heart rhythm that needs a shock the aed can then deliver a shoc
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Murray State University
CPR BLS AHA
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CPR BLS Exam 2021/2022 AHA
CPR Exam BLS 2021/2022 AHA through Heart CPR Training
Center 25 questions
Why is defibrillation important?
- It can restore a regular cardiac rhythm (An AED can identify an abnormal heart
rhythm that needs a shock. The AED can then deliver a shock that can convert a
rhythm back to normal.)
While performing high-quality CPR on an adult patient, what action should you ensure
is being accomplished?
- Compressing to a depth of at least 2 inches (When performing chest compressions on
an adult (or adolescent), a compression depth of at least 2 inches (5 cm) should be
used.)
A 63-year-old man collapses while mowing the lawn. He is unresponsive, is not
breathing, and does not have a pulse. A neighbor, who is an EMT, rushes to her with
an AED. When the AED arrives, what is the first step for using it?
- Turn on the AED (The first step for using an AED (when it becomes available) is to
power on the AED if needed. Some devices will power on automatically when you
open the lid or case. Because AEDs vary according to the model and manufacturer, it is
important to become familiar with the AED used in your particular setting.)
After the AED pads are attached to the victim's bare chest, the AED prompts you to
shock the victim. What is the next step when using an AED?
- Follow the AED prompts and press the shock button once everyone is clear. (After
the AED pads are attached to the victim's bare chest, you should follow the AED
prompts. The AED will analyze the victim's heart rhythm and prompt you to deliver a
shock if needed.)
What should you do if you need to use an AED on someone who has been submerged
in a pool?
- Pull the victim out of the water, and wipe the chest, and use the AED (Special
situations may require the rescuer to take additional actions when placing AED pads
for a victim who is immersed in water. In this case, the victim should be pulled out of
, the water. If the chest is covered with some water, it should be quickly wiped before
attaching the AED pads.)
A victim with who is choking becomes unresponsive. What is your first course of
action?
- Start CPR, beginning with chest compressions (Choking victims with severe airway
obstruction may worsen and become unresponsive. If this occurs, then high-quality
CPR must be started immediately, beginning with chest compressions.)
When using a bag-mask device, how can rescuers ensure that they are providing
effective breaths?
- Observing the chest rise with breaths (Squeeze the bag to give breaths (1 second
each) while watching for chest rise. Deliver each breath over 1 second, with or without
supplementary oxygen.)
What ratio for compressions to breaths should be used for 1-rescuer infant CPR?
- 30 compressions to 2 breaths (For 1-rescuer infant CPR, the correct compression-to-
ventilation ratio is 30:2.)
What is a consideration when you are using an AED?
- On a hairy chest, the pads may not stick and may fail to deliver a shock, therefore a
razor should be used to shave the victim (Special situations may require the rescuer to
take additional actions when placing AED pads on a victim who has a hairy chest. In
this case, the AED pads may stick to the hair and not to the skin on the chest, making it
difficult to analyze the victim's heart rhythm and deliver a shock (if needed). Most
AED kits contain a razor for this reason.)
A 7-year-old child has suddenly collapsed. After confirming that the scene is safe, a
single rescuer determines that the child is in cardiac arrest, shouts for nearby help, and
calls 911. The rescuer immediately begins CPR. Two additional rescuers arrive to
assist in the resuscitation attempt. What actions should occur next, to support a team-
based resuscitation attempt?
- 2 rescuers alternate giving high-quality chest compressions (To reduce rescuer
fatigue, switch compressors every 5 cycles (about 2 minutes) or sooner if needed. To
minimize interruptions in compressions, perform the switch when the AED is
analyzing the rhythm. Take less than 5 seconds to switch.)
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