Cramming 1 Flashcards
(21 cards)
What kind of an antibiotic is gentamicin?
Aminoglycoside
What type of Abx are nafcillin, methicillin, and dicloxacillin? What is their primary use?
penicillinase-resistant penicillins; Staph (except MRSA)
What Abx would you use to tx H. flu, E. coli, Listeria, Proteus, Salmonella, Shigella, or enterococci?
wide-spectrum penicillins: Amoxicillin or ampicillin
What Abx Take Care of Pseudomonas and gram (-) rods?
Ticarcillin, Carbenicillin, and Piperacillin
What antibiotic can be used against Gram (-) rods in individuals w/ penicillin allergy or those w/o the renal capacity to handle aminoglycosides?
aztreonam
What antibiotic would you use for prophylaxis against meningococcus?
Ciprofloxacin, rifampin, or minocycline
What antibiotic would you use for prophylaxis against gonorrhea?
ceftriaxone
What antibiotic would you use for prophylaxis against syphilis?
benzathine penicillin G
What antibiotic would you use for prophylaxis in a pt w/ a history of recurrent UTIs?
TMP-SMX
What antibiotic would you use for prophylaxis against endocarditis from surgical or dental procedures?
penicillins
What is the causative agent of oral hairy leukoplakia in AIDS pts?
EBV
The O Ag of Salmonella, botulinum exotoxin, erythrogenic exotoxins of GAS, and diphtheria toxin are all acquired by what mechanism?
Lysogeny (bacteriophage)
About how effective is the meningococcus vaccine in preventing meningococcal meningitis (percentage)? Why?
~50% b/c half of all meningococcal meningitis in the U.S. is caused by serotype B, which is not included in the vaccine b/c its sialic acid capsule is non-immunogenic.
What is the mo0st common causative agent of malaria?
P. vivax
What is the most common complication of P. vivax infection?
splenic rupture
How long is the period between fever spikes in malaria caused by P. vivax, P. ovale, or P. falciparum?
48 hrs
How long is the interval between fever spikes in P. malariae infection?
72 hrs
What intraerythrocytic parasite causes fever, shaking chills, and hemolytic anemia in the northeastern U.S.?
Babesia
“Owl’s eye inclusion” seen on histology from infection of immunosuppressed pt.
CMV
How do poxviruses, such as molluscum contagiosum, differ from other DNA viruses?
They replicate in the cytoplasm, and therefore must carry their own RNA polymerase.
Fungal infection that causes spherules containing endospores in the lung.
Coccidoidomycosis
