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You Are a Volunteer for Nurses Without Borders and Are

question 61

Multiple Choice

You are a volunteer for Nurses Without Borders and are being sent to a country in Africa. You are excited, because you will have opportunities to go on safari, but you are also somewhat concerned because you have learned from the CDC website that there is currently cholera in the country to which you are going. Patients with cholera experience vomiting and severe diarrhea, producing several liters of liquid stool in a day. This results in signs of dehydration, including sunken eyes, muscle cramps, and in a few cases, convulsions and death. Cholera is caused by the bacterium Vibrio cholerae. You make a list of questions about V. cholerae that you answer with the help of your nursing school study group.
-The signs and symptoms of cholera are caused by cholera toxin that is synthesized and secreted by the bacteria. The toxin causes chloride and other electrolytes to leave the intestinal cells. Water follows the electrolytes, resulting in an outpouring of water into the intestinal lumen. The gene for cholera toxin is a bacteriophage gene. This situation is an example of ________.

Definitions:

Moon Illusion

A perceptual phenomenon where the moon appears larger near the horizon than it does while higher up in the sky.

Distance Cues

Visual and auditory signals that help an organism estimate the distance of an object or sound source.

Principle Of Continuity

A concept in psychology suggesting that experiences are linked over time, creating a coherent sense of self.

Relative Motion

The movement of an object in relation to another, highlighting that motion is observed differently depending on the observer's position.