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Only a proportion of the air exhaled is carbon dioxide there is plenty of Oxygen there to do what is required under normal circumstances. People don't use all of the oxygen they breath in, a % of it is blown right back out of the body again.

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16y ago

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How can used air help to revive the person in mouth to mouth resuscitation?

In mouth-to-mouth resuscitation, the used air exhaled from the rescuer contains a mixture of oxygen and carbon dioxide. While it has a lower oxygen concentration than fresh air, it still contains enough oxygen to be beneficial for the victim, especially in a life-threatening situation where their breathing has stopped. Delivering this air can help maintain some level of oxygenation in the person's lungs and blood, which is crucial until professional medical help arrives or normal breathing is restored.


How many chest compresions for an adult?

One Rescuer-Adult-Cardio Pulmonary Resuscitation has a Ratio of:2 : 30 [2 Ventilations : 30 Compressions]Two Rescuer-Adult-Cardio Pulmonary Resuscitation has a Ratio of:1 : 5 [1 Ventilation : 5 Compressions]


Why do you use mouthpieces and resuscitation devices?

Mouthpieces and mouth barriers are essential to the safety of both the rescuer and the patient, it prevents direct contact of the mouth and bodily fluids. And which resuscitation devices in particular?


What is a breathing barrier used for?

A breathing barrier is a protective device used in emergency situations to facilitate rescue breaths while preventing direct contact between the rescuer and the victim. It typically features a one-way valve that allows air to enter the victim's lungs but prevents exhaled air and fluids from coming back to the rescuer. This helps reduce the risk of transmission of infectious diseases during mouth-to-mouth resuscitation. Breathing barriers are commonly included in first aid kits and are essential for CPR training and practice.


When two rescuer catdiopulmonary resuscitaion is performed on an unconscious adult. what does the rescuer at the casualtys head do?

The rescuer at the head performs the rescue breathing and checks the pulse during compressions to confirm they are effective.


When giving mouth to mouth resuscitation to a victim the rescuer should be positioned where?

Usually on the side (either); but sometimes along the long axis of the body at the head.


What is meant by the term EAR as it relates to first aid?

EAR stands for Expired Air Resuscitation. It is the method where a rescuer breathes for a person who is in respiratory arrest.


When a child has a heart rate greater than 60 per minute but not breathing the rescuer should?

Call an ambulance asap


What are the conditions that must exist before performing CPR?

Unconciousness, no respiration and no pulse.For the lay rescuer, the following conditions must exist before performing CPR:Adult: Not breathing and no signs of life (no movement, no breathing).Child / Infant: Not breathing and no pulse.


How you and a second rescuer can give CPR to an infant victim together using the 2-thumbs encircling hands technique?

For two rescuer infant CPR; one rescuer should give the breaths, the other rescuer performs compressions using the 2 thumbs encircling hands technique. Give cycles of 15 compressions and 2 breaths.


When a lone rescuer is administering chest compressions?

30 compressions that are done with frequency of at least 100/minute. Interupted by 2 rescue breaths


What is the singular possessive of rescuer?

rescuer's