Your Brother Is an Enthusiatic Hiker

question 69

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.
-The signs and symptoms of giardiasis vary among people. Which of the following is your brother unlikely to experience with his infection?

• A) Bloody, frothy urine
• B) Jaundice and malabsorption
• C) Indigestion and gas
• D) Nausea and vomiting
• E) These all may be experienced with giardiasis.

---

Definitions:

Endocrine System

A collection of glands that secrete hormones directly into the circulatory system to be carried towards distant target organs.

Skeletomuscular System

The combined system of the human body that includes both skeletal and muscular components, responsible for support, movement, and protection.

Protein P53

A tumor suppressor protein involved in cell cycle regulation and apoptosis, playing a key role in preventing cancer development.

Cell Division

The process by which a parent cell divides into two or more daughter cells, essential for growth, repair, and reproduction of living organisms.