Intestinal trouble in paradise While visiting a foreign country with poor- quality water, Beth and Tom each had a drink with ice during dinner. Many travelers avoid drinking the water in foreign countries but forget that ice is often made with local tap water! As a result, both Beth and Tom contracted an intestinal disease that causes severe diarrhea. (Diarrhea is characterized by loose watery bowel movements that, if left untreated, can cause serious health complications.) It is estimated that each year such "traveler's diarrhea" affects as many as 10 million Americans. High-risk destinations include the lesser-developed countries of Latin America, Africa, the Middle East, and regions of Asia. The Centers for Disease Control and Prevention (CDC) maintains a website to advise travelers. After 2 days of experiencing uncontrolled bouts of diarrhea, the couple sought medical attention at a nearby medical clinic. Various tests revealed that the culprit was the bacterium Escherichia coli. Further tests revealed that both Beth and Tom were dehydrated, so intravenous fluids were prescribed. Unfortunately, the attending nurse became distracted and erroneously gave Tom a hypertonic glucose solution instead of the normal saline that Beth received. Thailand THE ROUGH GUIDE 1 Mexico How would Beth's and Tom's dehydrated states affect their blood pH, urine pH, and breathing pattern? What effect will the intravenous hypertonic glucose solution have on Tom's blood ADH levels and urine volume? 2
Intestinal trouble in paradise While visiting a foreign country with poor- quality water, Beth and Tom each had a drink with ice during dinner. Many travelers avoid drinking the water in foreign countries but forget that ice is often made with local tap water! As a result, both Beth and Tom contracted an intestinal disease that causes severe diarrhea. (Diarrhea is characterized by loose watery bowel movements that, if left untreated, can cause serious health complications.) It is estimated that each year such "traveler's diarrhea" affects as many as 10 million Americans. High-risk destinations include the lesser-developed countries of Latin America, Africa, the Middle East, and regions of Asia. The Centers for Disease Control and Prevention (CDC) maintains a website to advise travelers. After 2 days of experiencing uncontrolled bouts of diarrhea, the couple sought medical attention at a nearby medical clinic. Various tests revealed that the culprit was the bacterium Escherichia coli. Further tests revealed that both Beth and Tom were dehydrated, so intravenous fluids were prescribed. Unfortunately, the attending nurse became distracted and erroneously gave Tom a hypertonic glucose solution instead of the normal saline that Beth received. Thailand THE ROUGH GUIDE 1 Mexico How would Beth's and Tom's dehydrated states affect their blood pH, urine pH, and breathing pattern? What effect will the intravenous hypertonic glucose solution have on Tom's blood ADH levels and urine volume? 2
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