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krishna12 Forum Junior Topics: 15 Posts: 53	Jul 11, 2010 - 3:56 PM       #1 4. A 21-year-old African American college student has had increasing fatigue over the past 3 weeks. Since an episode of cystitis treated with trimethoprim-sulfamethoxazole 3 weeks ago, he has been unable to keep up with his physical education classes. For 6 months, he has been following a vegetarian diet that has been supervised by student health services. Examination shows no abnormalities. His hemoglobin level is 10 g/dL, mean corpuscular volume is 85 ?m3, and reticulocyte count is 15%. Which of the following is the most likely cause of anemia in this patient? A ) Anemia secondary to infection B ) Antibiotic therapy C ) Gastrointestinal blood loss D ) Sickle cell disease
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.Mia. _________ Topics: 29 Posts: 502	Jul 11, 2010 - 6:59 PM       #2 B
krishna12 Forum Junior Topics: 15 Posts: 53	Jul 11, 2010 - 8:05 PM       #3 thanks... yes it is B
firestreaksky Forum Newbie Topics: 1 Posts: 34	Jul 12, 2010 - 10:50 AM       #4 I think its D..... As the reticulocytes count of 15% suggests that it could be due to chronic hemolysis, which is the most common cause of anemia in SSD. TMP-SMZ therapy leads to depletion of folic acid, which may lead to megalocytic anemia (MCV >95). however, its not the case in given question...
mn2_200 Forum Newbie Topics: 25 Posts: 234	Jul 13, 2010 - 5:16 PM       #5 its G6PD
jehanzebali Forum Junior Topics: 21 Posts: 882	Jul 18, 2010 - 5:06 AM       #6 b... G6PD
JorgeC Topics: 3 Posts: 97	Jul 19, 2010 - 5:09 PM       #7 Yeah, i think its G6PD. The clues here are: 1. African and Mediterranean higher risks 2. Drugs that iduce hemolysis: dapsone, sulfamethoxazole, doxorubicin 3. Also infections produce hemolysis
ray7 Forum Newbie Topics: 9 Posts: 102	Jul 25, 2010 - 8:25 PM       #8 he's also been following a vegetarian diet for 6 months, which means he could could have been eating lots of fava beans, thats another clue.

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