Monosodium urate (MSU) crystals typically appear as: A) ...

[Caiter2013]

Monosodium urate (MSU) crystals typically appear as:
 
  A) positive birefringent, needle-shaped objects, several of which may be intracellular due to phagocytosis by leukocytes in synovial fluid.
  B) negative birefringent, needle-shaped objects, several of which may be intracellular due to phagocytosis by leukocytes in synovial fluid.
  C) negative birefringent, plate-shaped objects, several of which are extracellular in synovial fluid.
  D) highly refractive, rod-shaped objects found in synovial fluid.

Question 2

A physician asks you if the microbiology department has Fletcher's medium in stock. What organism does she suspect based on this request?
 
  A) Nonvenereal Treponema spp. B) Leptospira interrogans
  C) Borrelia burgdorferi D) B. recurrentis

[mfedorka]

Answer to Question 1

B

Answer to Question 2

B