Olfactory nerve examination is a method to check whether a patient can correctly distinguish the smell of smell, damage of olfactory bulb, olfactory bundle, olfactory wire and wound, anterior cranial fossa lesion, skull base meningeal tuberculosis, nasal mucosal inflammation or atrophy available This method is checked out. To maintain a normal diet and schedule before the test, it is best not to eat too irritating foods such as peppers, garlic and so on.

Basic Information

Specialist Category: Otolaryngology Examination Category: Other Inspections

Applicable gender: whether men and women apply fasting: not fasting

Analysis results:

Below normal:

Normal value:
no

Above normal:

negative:
When the smell is normal, the smell of the test article can be clearly distinguished.

Positive:
In the case of olfactory disorders, one or both sides of the olfactory sensation may be reduced or disappeared, occasionally olfactory or olfactory inversion. When the olfactory disorder is found, the nasal cavity should be examined to exclude the intranasal patient. One side of the neurological olfactory loss, seen in the damage of the olfactory bundle, such as the tumor or trauma at the bottom of the frontal lobe.

Tips: Maintain a normal diet and schedule, do not eat foods that are too irritating, such as peppers, garlic, etc. Normal value

When the smell is normal, the smell of the test article can be clearly distinguished.

Clinical significance

Abnormal results: In the case of olfactory disorders, one or both sides of the olfactory sensation may be reduced or disappeared, occasionally olfactory or olfactory inversion. When the olfactory disorder is found, the nasal cavity should be examined to exclude the intranasal patient. One side of the neurological olfactory loss, seen in the damage of the olfactory bundle, such as the tumor or trauma at the bottom of the frontal lobe.

People in need of examination: Suspected of olfactory bulb, olfactory tract, olfactory wire damage and trauma, anterior cranial fossa lesions, skull base meningeal tuberculosis, nasal mucosal inflammation or atrophy.

Positive results may be diseases: frontal lobe tumor, atrophic rhinitis, nasal cyst, nasal meningeal brain swelling precautions

Taboo before the test: Maintain a normal diet and schedule, it is best not to eat too irritating food, such as pepper, garlic, etc..

Requirements for inspection: Actively cooperate with the doctor's work.

Inspection process

During the examination, the patient closes his eyes and uses a finger to press one side of the nostril. The examiner then places a different volatile odor test solution (such as turpentine, mint water, camphor, etc.) under the nostril of the subject to let him say what he smells. Smell, then try the other side.

Not suitable for the crowd

Inappropriate population: Patients who are allergic to the volatile odor test solution used.

Adverse reactions and risks

Nothing.