The vagina maintains an acidic environment by

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• A patient complained of foam in urine, which of the following might NOT suggest she/he have nephrotic syndrome
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• A 37-year-old alcoholic is brought to the emergency room after he was found unconscious in the street. He is hospitalized for dehydration and pneumonia. While being treated, he becomes acutely confused and agitated. He cannot move his eyes upward or to th
• A 43-year-old man is admitted to the neurology service after he went blind suddenly on the morning of admission. The patient does not seem overly concerned with his sudden lack of vision. The only time he gets upset during the interview is when he is discussing his mother＇s recent death in the countryside he was supposed to bring his mother to the city, but did not because he had been using drugs and did not save the necessary money. Physical examination is completely negative. Which of the following is the most likely diagnosis
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• A 37-year-old alcoholic is brought to the emergency room after he was found unconscious in the street. He is hospitalized for dehydration and pneumonia. While being treated, he becomes acutely confused and agitated. He cannot move his eyes upward or to the right, and he is ataxic. Which of the following is the most likely diagnosis
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• A 56-year-old woman slips on ice and hits her head on the pavement, but she does not give much weight to this event. During the following three weeks, she develops a persistent headache, she is increasingly distractible and forgetful, and at night she becomes fearful and disoriented. The most likely cause of such changes is
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• A 15-year-old boy developed a left Bell''s palsy over the course of 1 week. He was treated with acyclovir and prednisone. Over the next 3 months he seemed to recover almost fully. However,he has noticed involuntary twitching at the left corner of the mouth each time he tries to blink the left eye. This is most likely caused by: