Final answer:
The sniff test to detect odorization should be done when the patient is presented with common smells like coffee or mint to one nostril at a time. Recognition of the smell indicates proper functioning of the olfactory system. Loss of the sense of smell can occur due to blunt trauma to the head or aging.
Step-by-step explanation:
The sniff test to detect odorization shall be done when the patient is presented with common smells such as coffee or mint to one nostril at a time. If the patient can recognize the smell, it indicates the proper functioning of the olfactory system. Loss of the sense of smell, called anosmia, can occur due to blunt trauma to the head or aging.