Undergoing a vestibular test such as an Electronystagmography (ENG) or a Rotatory Chair Test is a crucial step in diagnosing the cause of dizziness, vertigo, or balance disorders. To ensure the most accurate results and a comfortable experience, it's vital to follow specific preparation instructions prior to your appointment.

Understanding Your Test: ENG & Rotatory Chair

Both tests evaluate the function of your inner ear and brain pathways responsible for maintaining balance and controlling eye movements (nystagmus). An ENG test typically involves tracking eye movements with electrodes or video cameras while stimuli are presented. The Rotatory Chair test involves sitting in a motorized chair that moves slowly and quickly in various directions, while eye movements are recorded. Proper preparation directly impacts the clarity and reliability of these diagnostic tools.

Key Pre-Test Instructions

Please review and adhere to the following guidelines carefully:

• Medications: Discuss ALL your current medications with your referring doctor or the testing facility prior to your appointment. You may be instructed to discontinue certain drugs that could affect your central nervous system or vestibular system, such as tranquilizers, sedatives, anti-dizziness medications, muscle relaxants, or specific pain relievers. Typically, these may need to be stopped 24 to 48 hours before the test. DO NOT stop any prescription medication without explicit medical advice.
• Caffeine and Alcohol: Avoid all forms of caffeine (coffee, tea, soda, energy drinks, chocolate) and alcoholic beverages for at least 24-48 hours before your test. These substances can significantly interfere with vestibular responses and eye movements.
• Food and Drink: Refrain from eating a heavy meal for at least 3-4 hours prior to your test. A light snack is acceptable. Fasting completely is not usually required, but avoid anything that might upset your stomach or cause nausea during the test.
• Eye Makeup and Facial Products: Please do not wear any eye makeup (mascara, eyeliner, eyeshadow) or facial creams/lotions on the day of your test. These can interfere with the adherence of electrodes (for ENG) or the camera's ability to track eye movements.
• Contact Lenses/Glasses: If you wear contact lenses, you may be asked to remove them for the test. Please bring your glasses with you, even if you typically wear contacts.
• Clothing: Wear comfortable, loose-fitting clothing. You will be seated for an extended period, and comfort is important.
• Hair: If you have long hair, please bring a hair tie to keep it out of your face, especially if you have bangs.
• Transportation: Due to the nature of the tests, you may experience temporary dizziness or lightheadedness afterwards. It is strongly recommended that you arrange for someone to drive you home following your ENG test or Rotatory Chair test.
• Medical History: Bring a list of your current medications, any relevant medical history, and previous test results that might be pertinent to your balance disorder or vertigo.
• Arrive on Time: Please arrive a few minutes early to complete any necessary paperwork.

What to Expect During the Test

While the tests are non-invasive, some aspects might feel unusual or briefly cause dizziness, which is a normal part of assessing your vestibular system. The clinicians are trained to ensure your comfort and safety throughout the procedure.

Conclusion

Your adherence to these instructions prior to your ENG or Rotatory Chair Test is crucial for obtaining accurate and meaningful results. This precision aids your healthcare provider in making a correct diagnosis and developing an effective treatment plan for your dizziness or balance issues. If you have any questions or concerns about these guidelines, please contact your testing facility before your scheduled appointment.