You are asked to place a nasal oxygen tube in a dog. what is the measurement for placement of nasal oxygen?

Measure to the medial canthus of the eye

The catheter should be placed 0.5 inches into the nostril

Advance the tube until the dog coughs and then pull back slightly

Measure to the top of the head

Measure to the medial canthus of the eye

A topical anesthetic (such as proparacaine) is instilled into a nostril prior to catheter placement. The catheter is lubed and slid into the nostril and introduced into the ventral nasal meatus. It is advanced to the level of the carnassial tooth or the medial canthus of the eye and is sutured to the skin.