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A clean catch urine cultured using 0.01 ml calibrated loop g…

A clean catch urine cultured using 0.01 ml calibrated loop grew 60 colonies.  What is the correct CFU/ml

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A  yellow colony from a skin lesion grew aerobically. It was…

A  yellow colony from a skin lesion grew aerobically. It was a gram positive cocci, catalase positive, coagulase negative.  A modified oxidase test was performed and it was positive.  The most likely organism is

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The mycobacterial isolated most closely associated with ente…

The mycobacterial isolated most closely associated with enteric infections in patients with acquired immune deficiency syndrome would be

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Purulent material is obtained from a carbuncle and submitted…

Purulent material is obtained from a carbuncle and submitted for bacterial culture. The direct smear reveals many gram-positive cocci and WBCs. The culture shows growth in the primary broth and on the sheep-blood agar plate and no growth on the MacConkey agar plate. The colonies on the blood-agar plate are butyrous and beta-hemolytic. The catalase test is positive and modified oxidase test is negative. Although the slide coagulase test is negative, the tube coagulase test is positive. The most probable identity of this isolate is

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When combination antibiotic therapy is used:

When combination antibiotic therapy is used:

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The causative agent of Q fever is

The causative agent of Q fever is

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Both blood and urine cultures are positive for an oxidase-ne…

Both blood and urine cultures are positive for an oxidase-negative, NLF gram-negative rod with a reddish pigment. Biochemical reactions include the following:TSI: K/A, gas +, H2S negIndole: neg, Citrate: pos, Motility: pos, Lysine decarboxylase: pos, Ornithine decarboxylase: posThe opportunistic pathogen that shows these reactions is

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Clinical laboratories handling mycobacteria fall into this b…

Clinical laboratories handling mycobacteria fall into this biosafety level.

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Special handling or methods are required when blood cultures…

Special handling or methods are required when blood cultures are requested on a patient to recover any of the following organisms EXCEPT

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Respiratory secretions from a patient receiving inhalation t…

Respiratory secretions from a patient receiving inhalation therapy reveals a nonmotile gram-negative coccobacillary rod that grows on MacConkey agar as lactose-negative colony at 24 hrs.  A large battery of conventional biochemical tests yields the following reactions:O-F glucose (aerobic): acidO-F glucose (anaerobic): alkalineOxidase: neg, TSI: Alk/no change, ONPG: neg, Motility: negAdditional oxidative (aerobic) testing:  Lactose: acid, Maltose: alkaline, Mannitol: alkaline, Sucrose: alkaline, Xylose: acid This organism is most likely:

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