PHARM417 Lecture Notes - Lecture 31: Inner Ear, Brain Ischemia, Macular Degeneration
21 Mar 2016
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The purpose of these cases is to allow students to test their knowledge gained from class and the laboratory. These cases are designed to be self-directed study. There will be no grades or marks given for completing the cases. Em is an 88 year old woman who was referred to the geriatric clinic for assessment of falls and dizziness. Uses 4-wheeled walker to go to dining room. Dizziness triggered by dynamic movements involving rotational component; episodes last for about 1 minute. Explain how these medications could worsen this symptom. Em is primarily on vasodilating (nitro) or antihypertensive (arb, beta-blocker) medications. By reducing blood pressure the patient may have reduced cns perfusion, leading to dizziness: explain how balance is maintained. Identify the 4 different body systems that are responsible for balance. Vestibular the hair cells in the semicircular canals; utricle and saccule. Described as a false sensation that the body or the environment is moving or spinning.
