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When an intubated patient suddenly becomes noticeably worse, we need to identify and correct the problem quickly. The reason is simple. The things that cause such a sudden change in presentation are usually preventing the patient from breathing effectively causing hypoxemia and hypoventilation.
What is D= Dislodged, O=Obstructed, P=Pneumothorax, and E- Equipment
The Mnemonic DOPE is to remind us of the causes that need to be eliminated, when treating the patient.