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Your Brother Is an Enthusiatic Hiker

question 75

Multiple Choice

Your brother is an enthusiatic hiker. He returns from a walking vacation and tells you that although he had a good time, he ran into a bit of trouble on one of the days he was away because he had got lost in the woods for several hours. Although he took enough food for the day, your brother ran out of water. Luckily, he came across a small stream and was able to fill up his water bottle and to finish his hike without any further problems. Your brother mentions as an aside that he must have eaten something bad while he was away, because he has had pretty bad diarrhea since he got back. He tells you he doesn't feel too bad, but that he has been having what he describes as "explosive diarrhea." He also complains of abdominal pain. You urge him to go to the doctor because you suspect that he may have something more than just food-related diarrhea.
-There are several stages in the life cycle of G. lamblia. Which is the correct sequence?
1) Trophozoites multiply in the intestine.
2) Mature cysts or trophozoites are released in feces.
3) Cysts pass through the stomach to the lower small intestine.
4) Dehydration in the large intestine stimulates formation of cysts.
5) Cysts enter the mouth by ingestion of contaminated food or water.
6) Trophozoites are released from the cysts.

Definitions:

Sigma Limits

Statistical parameters that define the bounds of variation in a process, typically used in quality control to identify when a process is deviating from desired performance.

Acceptance Sampling

A statistical quality control method used to determine if a batch of goods should be accepted or rejected based on sample quality.

Process Capability

The ability to meet design specifications.

Control Chart

A statistical tool used in quality control processes to monitor and control a process variable over time, identifying trends, shifts, or outliers.