E Coli 0157:H7 Produces Clear Colonies on MacConkey Agar, While

question 15

Multiple Choice

E. coli 0157:H7 produces clear colonies on MacConkey agar, while common strains of the organism produce pink colonies on this medium. The organism stains pink in the Gram stain. Select the TRUE statement, given this information.

• A) E. coli 0157:H7 is Gram-positive AND is a normal constituent of the intestinal tract.
• B) E. coli 0157:H7 is a normal constituent of the intestinal tract AND does not ferment sorbitol.
• C) E. coli 0157:H7 does not ferment sorbitol AND is Gram negative.
• D) E. coli 0157:H7 does not ferment sorbitol AND is Gram-positive.
• E) E. coli 0157:H7 produces a toxin AND is a normal constituent of the intestinal tract.

---

Definitions:

Time-specified Scheduling

An appointment system where patients are given specific times for their visits, aiming to reduce waiting periods and streamline the process.

Double-booking System

A method used in accounting that records each transaction in two accounts to ensure the balance sheet remains balanced.

Average Visit

An average visit typically refers to the median length or type of encounter experienced by individuals when attending a specific event, facility, or practitioner.

Time-specified Scheduling

A method of appointment scheduling in a medical office where patients are assigned specific times for their visits, aiming to reduce wait times and enhance efficiency.