The following are reported on a given work day:1. Observation of AFB organisms on direct smear of a sputum2. Identification of Neisseria gonorrhoeae from a genital specimen of a female outpatient3. Positive findings of Entamoeba histolytica trophozoites and cyst forms4. Oxacillin resistance noted in a Staphylococcus aureus isolate from an inpatientAll require what additional step?

A nonhemolytic streptococcus that has been isolated from an ear culture grows up to the edge of a Bacitracin disc. Which of the following test would help to determine if the organism was an Enterococcus species

It is important to differentiate between Enterococcus and Group D Streptococci because 

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

Members of the family Enterobacteriaceae share which of the following traits

Which of the following may be used as a positive quality control organism for the bile esculin test

Eikenella corrodens is an opportunistic pathogen, but it is most noted for causing

Safety precautions designed to minimize laboratory-acquired infections when working with Mycobacterium tuberculosis in a clinical laboratory would prevent spreading of these organisms by

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

Physical examination of a 20 year old man seen in the emergency room reveals neck rigidity and a temperature of 102 deg F. Direct Gram’s stain of the CSF reveals numerous WBCs and a few gram-negative diplococci. The isolate grows on sheep-blood agar and is oxidase-positive. Acid production occurs in the cystine trypticase agar (CTA) carbohydrates as follows:Glucose: acid, Lactose: acid, Maltose: acid, Sucrose: acidThe most appropriate action to take is