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
Positive regulation of the lac operon by the catabolite activator protein (CAP)
Lumbar puncture. Abbreviated LP, the lumbar puncture is a common procedure that withdraws cerebrospi
Positive Babinski’s sign.
Intradermal drug administration: (a) cross section of skin showing depth of needle insertion Source:
In one-male group species, extra males typically reside in all-male “bachelor” groups. These are Han
The “inside positive” rule