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1) The number of oxygen molecules carried by one Hb molecule a. 1         b. 2 c. 4         d. 8 Ans. c 2) Arneth count is counting of a. lymphocytes                 b. lobes of eosinophils c. lobes of neutrophils   d.   reticulocytes Ans. c 3) Majority of clotting factors are produced in a. liver   b. kidney c. heart                 d. brain Ans. a 4) Endothelial cells synthesise a. fibrinogen      b. factor 8 c. factor 10          d. factor 12 Ans. b 5) Iron is stored in the body in the following except a. spleen              b. R.E. system c. gall bladder ...

  A 37-year-old woman presents with complaints of severe heartburn with or without meals. She has a history of hypertension, which has been treated with captopril. She also has a history of Raynaud disease, multiple facial telangiectasias, and very taut skin on the dorsum of both hands. She has failed to obtain relief for her heartburn with large doses of antacids, ranitidine, or omeprazole. Esophageal manometry is ordered. Which of the following would be the most likely results of this test? a) Decreased esophageal peristalsis and decreased LES pressure b)Decreased esophageal peristalsis and increased LES pressure c)Increased esophageal peristalsis and decreased LES pressure d)Increased esophageal peristalsis and increased LES pressure e) Normal esophageal peristalsis and normal LES pressure Explanation: The correct answer is A. This patient has the classic presentation of gastroesophageal reflux disease (GERD) in association with scleroderma. These patient...

A 74-year-old woman presents to her physician for a postoperative medical visit. Three days ago, she underwent a left total knee replacement for severe osteoarthritis. She has a past medical history significant for type 1 diabetes mellitus and glaucoma. Her hospital course was uneventful. She continues to take daily NPH insulin and has good control of her blood glucose. She also takes oxycodone, which was given to her in the hospital for pain. She is involved in a physical therapy rehabilitation program at the local hospital. On review of her medications, which of the following is most acutely indicated at this time? a) An ACE inhibitor b)A nonsteroidal anti-inflammatory agent c)Oral aspirin d)Oral Coumadin e) Subcutaneous unfractionated heparin Explanation: The correct answer is D. This patient is post a total knee replacement and is currently not on any anticoagulation therapy. The risk of deep venous thrombosis (DVT) and subsequent pulmonary embolism is v...

1. A person comes to you with an elevated serum free calcium but the parathyroid hormone level (PTH) is in the normal range (52, with a normal in this assay of 15-55). What is the best conclusion? A. The PTH is normal, therefore the problem does not lie in the parathyroid gland. B. The person must have excessive sensitivity to PTH, since normal levels are stimulating excessive calcium mobilization from bone. C. The PTH should be low if the parathyroid were functioning normally, thus the problem does lie in the parathyroid gland. D. You cannot be sure what is going on; you need to perform a parathyroid scan. Correct Answer: C 2. A mother comes to see you because two of her seven children are morbidly obese. She and her husband think they may have some relatives in common, and both parents are dark-haired. She brings one of her children with her. The boy is 13 years old, and weighs 230 lb; his BMI is 52. At birth, he was found to have adrenal insufficiency and h...