A “sip of air” means taking a tiny breath in, the purpose of which is to relieve tension rather than take in air. It is about 10 percent of a normal breath. • Contractions of the diaphragm will strengthen as the air shortage progresses. Try to bring a feeling of relaxation to your body as the air shortage increases. • With each successive breath hold, oxygen saturation will continue to decrease. • Continue to observe the pulse oximeter, ensuring that you do not go below 80 percent SpO2. • Challenge but do not stress yourself. • If the
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