Characteristics of the HACEK group of bacteria include

A sputum culture yields predominantly alpha-hemolytic, flat colonies on sheep-blood agar that on Gram’s stain reveal gram-positive cocci in pairs. Which biochemical tests will aid in the identification of this isolate?

Lyme disease is caused by the bite of a tick infected with

Steps involved in viral replication include all the following except

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PAAST Corp. has outstanding accounts receivable totaling $1.27 million as of December 31 and sales on credit during the year of $6.4 million. There is also a debit balance of $6,000 in the allowance for doubtful accounts. If the company estimates that 2% of its accounts receivable will be uncollectible, what will be the balance in the allowance for doubtful accounts after the year-end adjustment to record bad debt expense?

A direct Gram’s stain of a pelvic mass from a patient with an IUD shows numerous pus cells and branching, filamentous, beaded gram-positive rods. Heaped, lobate colonies grow anaerobically and develop a molar-tooth apearance after several days of incubation. The most probable identity is

A gram-negative diplococcus that is isolated from synovial fluid on chocolate agar resembles either a Moraxella species or Neisseria gonorrhoeae. The single best test to distinguish between these organisms is

A gram negative bacillus was isolated from the cerebrospinal fluid of an infant with a CSF shunt. The organism produced NLF mucoid colonies on MacConkey agar, oxidase positive, and gave the following biochemical results: TSI agar: K/K, gas neg, H 2S neg PAD: neg, Indole: neg, Motility: pos Cetrimide: pos, Citrate: pos The most probable identity of this organism is

Completar Select the appropriate word or phrase. (7 x 2 pts. each = 14 pts.) Ana y Javier salieron de casa [1] (por/para/de) comprar una impresora. Llegaron a casa con [2] (mi/tu/su) impresora nueva y leyeron las instrucciones: “Pon [3] (el disco/la arroba/el teclado) en [4] (mi/tu/su) computadora. Luego conecta el cable USB. Sigue las instrucciones de la pantalla y haz una prueba de impresión (printing)”. Ana y Javier [5] (te/nos/se) miraron. ¡La impresora no funcionaba! Llamaron al servicio técnico (technical support) y después de estar al teléfono [6] (por/para/con) dos horas, la impresora funcionó. Y Ana y Javier [7] (se/nos/me) abrazaron de alegría.