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I'm sorry to hear about your situation. Yes, you have a right to "reasonable accommodations" for a disability defined by ADA. Exams administered by any private, state, or local government entity related to applications, licensing, certification, or credentialing for secondary or postsecondary education, professional, or trade purposes are covered by the ADA and testing accommodations, pursuant to the ADA, must be provided.
Now that being said, the accommodations simply need to be "reasonable". That is, testing entities must ensure that the test scores of individuals with disabilities accurately reflect the individual’s aptitude or achievement level or whatever skill the exam or test is intended to measure. A testing entity must administer its exam so that it accurately reflects an individual’s aptitude, achievement level, or the skill that the exam purports to measure, rather than the individual’s impairment (except where the impaired skill is one the exam purports to measure). The point is that IF (and that's an if) the exam is initially being administered in a way where the disability impairs the testing, and it can be administered in a different way that would show your skills and knowledge, rather than being impaired by that disability, AND the difference is not unreasonably burdensome from a cost or time perspective, then it would generally be seen as "reasonable" under the ADA.
Furthermore, it has to be a disability as defined by the ADA. Under the ADA, an individual with a disability is a person who has a physical or mental impairment that substantially limits a major life activity (such as seeing, hearing, learning, reading, concentrating, or thinking) or a major bodily function (such as the neurological, endocrine, or digestive system). The determination of whether an individual has a disability generally should not demand extensive analysis and must be made without regard to any positive effects of measures such as medication, medical supplies or equipment, low-vision devices (other than ordinary eyeglasses or contact lenses), prosthetics, hearing aids and cochlear implants, or mobility devices. However, negative effects, such as side effects of medication or burdens associated with following a particular treatment regimen, may be considered when determining whether an individual’s impairment substantially limits a major life activity.
So IF you have a disability as defined by the ADA and IF the testing accommodations sought are "reasonable" to accurately test the skills rather than the disability, then it should be granted. Now as you can imagine the existence of a disability and the need for and reasonableness of any accommodations are what are actually fought about in court.
Hope that clears things up a bit. If you have any other questions, please let me know. If not, and you have not yet, please rate my answer AND press the "submit" button, if applicable.
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