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- 3. What is an inhalant? What are the effects and health hazards of inhalants?A- Mention the steps to follow to attend to an emergency of bovine dystocia and equine colic. B- Discuss the equipment required during a bovine dystocia emergency and possible complications that may arise in the process of caring for the animal.1. During mechanical ventilation of a patient with COPD, the PaO2 = 58 mm Hg and the FIO2 = 0.5. If the desired PaO2 is 65 mm Hg, the FIO2 needs to be changed to which of the following?a. 0.44b. 0.56c. 0.65d. 0.74