Yeah this can happen because the bronchi in the lungs is covered with this "teflon" like non-stick coating that prevents the lungs sticking together when breath

Yeah this can happen because the bronchi in the lungs is covered with this "teflon" like non-stick coating that prevents the lungs sticking together when breathing out. When a person inhales water in a near drowning this coating might get washed away resulting in the bronchi to get stuck. This will reduce the breathing capacity of the organ could result in hypoxia. Therefore after near drowning supervision in a hospital is a good idea.