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Ch. 14 The Autonomic Nervous System

Chapter 13, Problem 16

A 32-year-old woman complains of intermittent aching pains in the medial two fingers of both hands. During such episodes, the fingers become blanched and then blue. Her history is taken, and it is noted that she is a heavy smoker. The physician advises her that she must stop smoking and states that she will not prescribe any medication until the patient has discontinued smoking for a month. What is this patient's condition, and why was she told to stop smoking?

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Welcome back, everyone. Let's look at our next problem. Emily, a 24 year old medical student is volunteering at a local hospital. She experienced sudden dizziness while observing a surgical procedure. The sight of blood made her collapse to the ground. She quickly regained consciousness within a minute but felt weak and disoriented afterwards. What type of a, a autonomous disorder? Excuse me is Emily likely experiencing in this situation. A migraine B, Parkinson's disease, C vasovagal syncopy or D multiple sclerosis. Well, in this case, you have this sudden drop in heart rate and blood pressure in response to a stressful or distressing situation. In this case, the sight of blood that causes the faintness and then the feeling, the bad feeling afterwards. So that is going to be our answer. Choice. Now, let's look at our other answers to see why they're not correct choice. A migraine is a headache disorder wouldn't cause this dizziness and faintness in response to a stimulus. So choice. A not correct. B Parkinson's disease is a neurodegenerative disease affecting movement. So not the quite the right descriptor. And finally, we go on to choice D which is multiple sclerosis and multiple sclerosis is an autoimmune disease that affects the central nervous system. So not what we're looking for. So we'll cross that out. And once again, the autonomous disorder Emily is likely experiencing in the situation where and she faints and responds to the sight of blood is choice. C vasovagal syncopy. See you on the next video.