A Microbiologist Is Reading Plates from a Cerebrospinal Fluid (CSF)

question 29

Multiple Choice

A microbiologist is reading plates from a cerebrospinal fluid (CSF) culture.She notices that there is growth on chocolate agar (CHOC) , but no growth on sheep blood agar (SBA) or MacConkey (MAC) agar.The Gram stain showed a gram-negative bacillus.What organism should be suspected?

• A)Streptococcus pneumoniae
• B)Staphylococcus aureus
• C)Haemophilus influenzae
• D)Escherichia coli

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Definitions:

Output Level

The amount of goods or services produced by a company, industry, or economy within a specific period, often measured to assess productivity and efficiency.

Break-Even

The point at which total revenue equals total costs, meaning there is no net loss or gain.

Output Level

Refers to the total quantity of goods or services that a firm produces over a specific period.

Scarce Factor

A resource or input in limited supply relative to demand, which can constrain production, increase costs, or cause competition.