Cardiac Arrest Rhythms Quiz: CPR and Rhythm Identification

What is the correct depth for compressions on an infant?

When performing CPR with two rescuers on a child, what is the compression to ventilation ratio?

After how many cycles should compressors be switched to ventilation during CPR?

Which of the following is NOT a possible cause for asystole when responding to a patient post-MVA using the 5 H’s and T’s?

In case of hypovolemia or blood loss during cardiac arrest, which fluid is NOT used in resuscitation?

How often should Epinephrine be administered for a patient in Asystole?

In CPR, what are the 5 H’s that are considered when determining potential causes for a patient's condition?

What is the recommended ratio of compressions to ventilations during CPR for an adult?

At what depth should compressions be performed on adults during CPR?

What is the recommended rate of compressions per minute when performing CPR on adults?

Infant CPR

Infant depth for compressions is 1.5 inches.

Compression to Ventilation Ratio

Ratio of compression to ventilation remains at 30:2 for adults with one or two rescuers.
For children and infants with 2-person rescue, the ratio changes to 15:2.

Switching Compressors to Ventilation

Switch after 2 minutes or 5 cycles.

Possible Causes of Asystole

Tension pneumothorax caused by the accident.
Cardiac tamponade, hypoxia, hypovolemia, acidosis, hypothermia.
Pulmonary embolus if they throw a clot from a fracture.

Fluids for Resuscitation

0.9 normal saline.
Lactated Ringer's (LR).

Bag Valve Mask Device

Note the rise and fall of the person's chest with each breath.

CPR Ratio and Initiation

Compression to ventilation ratio is 30:2.
CPR should be started immediately when a person becomes unconscious, is not breathing, and is pulseless.

Rhythm Identification

Sinus tachycardia with no pulse and not breathing is PEA.
Asystole rhythm has no pulse and is not breathing.

Medication for Asystole

Epinephrine 1mg IV (1mg of a 1:10,000 concentration) every 3-5 minutes.

5 H's and T's for Asystole

Hypovolemia, hypoxia, hydrogen ions, hypo/hyperkalemia, hypothermia/hyperthermia.
Tension pneumothorax, tamponade (cardiac), toxins, cardiac thrombosis, pulmonary thrombosis.

CPR Compressions per Minute

At least 100 compressions per minute with the goal of 100-120 compressions per minute without pauses for ventilation.

Compression Depth

Adult compression depth is at least 2 inches to no more than 2.4 inches on the lower third of the chest.
Child compression depth is 2 inches.
Infant compression depth is 1.5 inches.

Test your knowledge on CPR procedures and identifying cardiac rhythms in emergency situations. Questions cover topics like compression-to-ventilation ratio, when to start CPR on adults, and recognizing different cardiac rhythms like asystole and pulseless electrical activity (PEA).