Microbiology

The presence of Haemophilus influenza in CSF can be rapidly detected by:

When cleansing the skin with alcohol and then iodine for the collection of a blood culture, the iodine should remain intact on the skin for at least:

The purpose of SPS as an anticoagulant for blood cultures is

To eliminate the antibacterial properties of blood and simultaneously introduce an adequate volume of blood for recovery of microorganisms from septicemia, the recommended blood-to-broth ratio in the blood culture bottle is approximately:

Which of the following characteristics is not consistent with strep pneumoniae

A small gram positive rod that causes neonatal meningitis and septicemia

Children who have infections with beta-hemolytic strep can develop

The stock cultures needed for quality control testing of motility are

clinical resistance to penicillin dosages appears to correlate with beta-lactamase production in

a tsi tube inoculated with an organism gave the following reaction

it is important to identify individual members of the group d strep because

the onpg test allows organisms to be classified as  lactose fermenter by testing for which of the following

the x and v factors required for growth of h. influenza are contained in

family characteristics of the enterbacteriaceae include

a nasopharyngeal culture grows a predominace of a beta=hemolytic colont-type on SBA at 18h. The isolate is susceptible to a 0.04 bacitracin. the most likely id is

Neisseria species can be identified and differentiated by

which of the following statements regarding simmons citrate agar is incorrect

a potentially pathogenic yeast that is normal flora in the oropharyngeal cavity and may produce thrush is

which genera of the enterbacteriaceae are known to cause diarrhea and are considered to be enteric pathogens

parasites that are detected by direct visualization in a perispheral blood smear are

micrococcus and staphylococcus species are differentiated by which tests

s. epidermidis is recovered from which of the following sources

which of the following organisms is the cause of lyme disease

which of the following is a dimorphic fungus

a campy species has been isolated from a blood culture. the organism is susceptible to ....

the examination of human feces is no help in the detection of

which disinfectant

gram stain examination of a csf specimen

mycobacteria that produce pigment only after exposure to light

on a culture suspected to be mycobacterium tuberculosis, the most important test to perform is

if material for viral culture cannot be processed immediately, it should be held at

an 8 year-old child presents with tinea capitis thought to be caused by microsporum canis

an organism was isolated on KV agar from a peritoneal abcess. it is most likely to be

a hiv pos patient began to show signs of meningitis. a budding capsulated yeast was recovered. which organism is consistent with this information

highest rate of infection in lab professionals

primary isolation of n. gonorrhoeae requires

the etiologic agent of botulism is

hep b virus can be transmitted by

gram neg rod is isolated. fruity odor

parasitic organisms that are most often transmitted sexually include

which nonpathogenic mycobacterium sp is isolated most often from clinical specimens and is called the tapwater bacillus

which of the following is the medium of choice for the selective recovery of gram-neg anaerobes

Toxic shock syndrome is caused by

shigella apecies characteristically are

the pair of organisms that would provide a good positive and negative control for PEA blood agar

after 48 hrs of incubation on anaerobic SBA clostridium perfringens appears as a

satellite phenomenon with colonies of staph

in preparing india ink slide the tech should

which selective medium is used for the isolation of gram pos organism