NBME Explanations

New Launch of Test Pirates Downloads with NBME answers and explanations

NBME Explanations

NBME 16 Questions and Answers

Discussion in 'USMLE Step 1' started by orthopod, May 24, 2015.

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  1. shiva

    shiva
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    #41 shiva, Jan 16, 2017
    pct is the answer
     
  2. shiva

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    #42 shiva, Jan 16, 2017
    low sensitivity...please change
     
  3. shiva

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    #43 shiva, Jan 16, 2017
    it acts on vldl synthesis and secretion not ldl
     
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  4. shiva

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    #44 shiva, Jan 16, 2017
    answer is nadph oxidase...because they were asking about initiation of reaction
     
  5. shiva

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    #45 shiva, Jan 16, 2017
    c
    candida albicans
     
  6. shiva

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    #46 shiva, Jan 16, 2017
    de
    praziquantel because it is clonorchis species
     
  7. orthopod

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    #47 orthopod, Feb 2, 2017
    @shiva thanks for all the updates. I will be sure to check and make the appropriate changes as necessary.
     
  8. conan

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    #48 conan, Mar 9, 2017
    Last edited: Mar 9, 2017
    The answer is Unbalanced chromosome rearrangment. (translocation is the key word, but they omit it b/c then the answer would be too obvious.) Unbalanced translocation is also why she has had so many miscarriages, she must be a carrier of a unbalanced translocation.
     
  9. conan

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    #49 conan, Mar 9, 2017
    The answer is 10%, (200/2000 = new infection/at risk)
     
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  10. conan

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    #50 conan, Mar 9, 2017
    I think the DDx is either a protozoa (Metronidazole) or worms (Praziquantal), and since most common Giardiasis, Sx: foul-smelling, fatty diarrhea, and Amebiasis: bloddy diarrhea, doesnt match the vignette. It has to be a fluke/worm. The pic does look like a protozoa instead of a worms/fluke.
     
  11. conan

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    #51 conan, Mar 9, 2017
    she has PCOS. By definition insulin, Testosterone, LH all increases.
     
  12. RJLB

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    #52 RJLB, Apr 12, 2017
    Can someone please explain how macrophages activity goes down? Thank you!
     
  13. orthopod

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    #53 orthopod, May 6, 2017
    Which question are you referring to?
     
  14. krysleee

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    #54 krysleee, May 16, 2017
    Is Block 4 Part 2 coming soon? Thanks again for all your hard work!!! Truly appreciate it
     
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  15. Subrina Sundil

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    #55 Subrina Sundil, Dec 27, 2017
    Last edited: Dec 27, 2017
    50-year-old M with fever and SOB for 3 days. Gram stain shows numerous neutrophils, gram-positive diplococci. Which enzymes initiate intracellular killing of the diplococci?
    - NADPH oxidase
     
  16. Subrina Sundil

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    #56 Subrina Sundil, Dec 27, 2017
    35yo M with 6-month hx of burning abdominal pain 1 to 2 hours after he eats. Had black stools for 2 days. Sweating, light-headedness when he stands. CT shows 1-cm mass in the pancreas. Immunohistochemical labeling will show antibodies to which substances?
    -it is gastin.
     
  17. Subrina Sundil

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    #57 Subrina Sundil, Dec 27, 2017
    22. 32yo F G4P0A3 delivers female with dysmorphic features and numerous organ anomalies. Mother has had spontaneous abortions, and this is her first liveborn child. Explanation?
    -Unbalanced chromosome rearrangement
     
  18. Dystopian

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    #58 Dystopian, Dec 24, 2018
    The answer should be Increased FSH.
     
  19. Dystopian

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    #59 Dystopian, Dec 25, 2018
    The answer should be Antagonizes VLDL Cholesterol secretion.
     
  20. Dystopian

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    #60 Dystopian, Dec 25, 2018
    The answer should be Nonmaleficence
     
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