True, but self-discipline means to do something you know you should do but don't want to do and do it anyway.
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Vacation time allows her the time to be away from work and also spend time with family and kids. This would allow Christine to work her regularly scheduled hours and the company would not have to alter their or change their working hours. The company could simply assign someone else her job while she is out on vacation time.
1.) Emotional Hostages
2.)Stress
3.) Financial Burdens
That she is intaking a sufficient amount of oxygen with adequate tidal volume so that her organs remain perfused. If she is not taking in sufficient oxygen she will goninto shock due to the lack of oxygen before seizing, going into Cardiac Arrest, and expiring.
You need to provide some form of supplementary oxygen if she does not have adequate tidal volume and her Spo2 has the potential to get worse so you'd automatically hook her up to oxygen via an NRB. If her respirations begin to fail you provide positive pressure ventilation via BVM.