Which disease is likely to show rim(peripheral) pattern in immunofluorescence (IF) microscopy for ANA (antinuclear antibodies)?

Fluid from a black cutaneous lesion was submitted for routine bacteriological culture. After 18 hours of incubation in 3-5% CO2, there was no growth on MacConkey agar, but 3+ growth on sheep blood agar. The colonies were nonhemolytic, 4 to 5 mm in diameter and off-white with ground glass appearance. A gram stain smear of a typical colony showed large, gram-positive rectangular rods. This organism is most likely:

Which disease are we looking for when we using agglutination test to combine patient serum (which contains possible factors) that can bind to the Fc portion of an IgG molecule? 

An anitbiotic that inhibits cell wall synthesis is:

Which immunoglobulin appears first int he primary immune response?

Which of the following is used to promote growth of gram-negative organisms while inhibiting the growth of gram-positive organisms? 

Haemophilus influenzae becomes resistant to ampicillin when the organism produce a(n)

Which characteristic best differentiates Acinetobacter  species from Moraxella species?

What is the purpose of adding 0.025%-0.050% sodium polyanethol sulfonate (SPS) to nutrient broth media for the collection of blood cultures?

Thioglycollate broth is stored at room temperature and in the dark so that: