Free EMR Cardiology, Airway, and Ventilation Test 3

Question 1

You witnessed a patient become unresponsive after choking. The correct order of procedures is to:

Accepted Answer

start chest compressions, open the victim’s mouth, look for an occluding object, then remove it with your fingers.

Answer

If a choking patient becomes unresponsive, the protocol shifts to CPR. The first step is to begin chest compressions, as these can help dislodge the obstruction and maintain some blood flow. After each set of compressions (or before rescue breaths), the rescuer should open the victim's mouth, look for a visible foreign object, and if seen, remove it with a finger sweep. Blind finger sweeps are not recommended.

Question 2

A rescuer’s exhaled air contains approximately:

Accepted Answer

17% oxygen.

Answer

A rescuer's exhaled air contains approximately 17% oxygen. While atmospheric air contains about 21% oxygen, the body utilizes some of it during respiration. This 17% oxygen content is sufficient to provide adequate oxygenation to a patient during rescue breathing, making mouth-to-mouth or mouth-to-mask ventilation an effective life-saving intervention.

Question 3

Proper technique when performing the head tilt chin lift includes:

Accepted Answer

placing your fingers on the bony part of the lower jaw and bringing the chin forward.

Answer

The correct technique for the head tilt-chin lift maneuver involves placing your fingers on the bony part of the lower jaw (mandible) near the chin and gently lifting the chin forward while simultaneously tilting the head back. This action lifts the tongue away from the back of the throat, opening the airway. It's crucial to avoid pressing on the soft tissues under the chin, which could obstruct the airway.

Question 4

If breathing is inadequate or absent providing rescue breathing can:

Accepted Answer

prevent cardiac arrest.

Answer

If breathing is inadequate or absent, providing rescue breathing is a critical intervention that can prevent cardiac arrest. Respiratory arrest often precedes cardiac arrest, especially in children. By providing artificial ventilations, the rescuer ensures that oxygen continues to reach the patient's lungs and bloodstream, thereby maintaining oxygenation of vital organs and potentially preventing the heart from stopping.

Question 5

Which of the following pieces of equipment should be included in the EMR's life support kit?

Accepted Answer

Mouth-to-mask ventilation device

Answer

An EMR's life support kit should include essential basic airway and ventilation equipment. A mouth-to-mask ventilation device is a standard piece of equipment for EMRs, allowing for safe and effective rescue breathing while providing a barrier between the rescuer and the patient. Manual defibrillators, endotracheal tubes, and mechanical suction devices are typically found in more advanced life support kits used by paramedics or higher-level providers.

EMR - Emergency Medical Responder Practice Test

EMR - Emergency Medical Responder Practice Test

Free EMR Cardiology, Airway, and Ventilation Test 3