A 65-year-old African-American woman presented to the emerge…

Questions

A 65-yeаr-оld Africаn-Americаn wоman presented tо the emergency room complaining of worsening shortness of breath and palpitations for about 1 week. She reports feeling "dizzy" on and off for the past year; the dizziness is associated with weakness that has been worsening for the past month. She has been feeling "too tired" to even walk to her backyard and water her flower bed that she used to do "all the time." She has been so dyspneic walking up the stairs at her home that she moved downstairs to the guest room about a week ago. Review of systems is significant for knee pain, for which she frequently takes aspirin or ibuprofen; otherwise, the review of systems is negative. She has no significant medical history and has not been to a doctor in several years. She had a normal well-woman examination and screening colonoscopy about 5 years ago. She occasionally has an alcoholic drink and denies tobacco or drug use. She is married and is a retired shopkeeper. On examination, her blood pressure is 150/85 mm Hg; her pulse is 98 beats/min; her respiratory rate is 20 breaths/min; her temperature is 98.7°F (37.1°C); and her oxygen saturation is 99% on room air. Significant findings on examination include conjunctival pallor, mild tenderness with deep palpation in the epigastric and left upper quadrant (LUQ) region of the abdomen with normal bowel sounds, and no organomegaly but a positive stool hemoccult test. The remainder of the examination, including respiratory, cardiovascular, and nervous systems, was normal.  What is the clue to your diagnosis? 

Infоrmаtiоn fоr questions 1-8 The following figure hаs severаl curves. They are: The domestic demand for a good in a certain country: black curve, labeled DDOM. The marginal cost of a monopolist that dominates the market in this country: yellow curve, labeled MC=S. Four auxiliary curves, labeled A, B, C, and D. Please spend a couple of minutes familiarizing yourself with these curves, since there are quite a few on the figure. Note that one vertical grid space is $5; while one horizontal grid space is 25 units of the good. This monopolist can only sell in the domestic country. When the country is in autarky, it just behaves as any regular monopolist. When the country engages in free trade with the rest of the world, the monopolist must take into account the threat of imports at the world price PW=5 (horizontal line at a height of $5, not shown). Assume that this is a small country, so nothing that it does will affect this world price. If a line seems to cross a grid point, you must assume it does so, and therefore get an exact answer. In these cases, only the exact answer is accepted. Examples: you must assume that line D at a price of $20 corresponds exactly to a quantity of 75; and you must assume that lines C and D cross exactly at a price of $20, and quantity of 75. When you need to read off a value not crossing at a grid point, then reasonable approximations within one grid square are accepted. Example: line D at a price of 35 seems to be roughly a quantity of 37.5, so 37.5 ± 25 will be accepted. Also, assume that the horizontal intercept of line B is exactly 87.5. For all numerical questions enter a whole or decimal number. If an answer cannot be obtained with the information given, enter the number 0. Do not enter any dollar signs, just numbers, and a decimal point if needed.   For questions 3-4, assume that the country is in free trade with the rest of the world.   What price will the monopolist charge?