Question Video: Interpreting a Graph to Determine Which Patient is Diabetic | Nagwa Question Video: Interpreting a Graph to Determine Which Patient is Diabetic | Nagwa

Question Video: Interpreting a Graph to Determine Which Patient is Diabetic Science • Third Year of Preparatory School

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The chart shows the changes in blood glucose levels after two comparable patients have consumed the same amount of a sugary drink. What can we conclude from this chart about the patients?

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Video Transcript

The following chart shows the changes in blood glucose levels after two comparable patients have consumed the same amount of a sugary drink. What can we conclude from this chart about the patients? (A) Both patients are not diabetic. (B) Both patients are diabetic. (C) Patient A is diabetic, and patient B is not diabetic. Or (D) patient B is diabetic, and patient A is not diabetic.

This question is asking us to compare blood glucose levels of two patients after they have had a sugary drink. So what happens after we have a sugary drink? Well, it goes through our digestive system, and the sugars inside of it get broken down into a simple sugar called glucose. This glucose is absorbed in the blood, and that’s why we see the blood glucose levels rising in both of our patients here. When glucose is in the blood, it travels to different cells of our body, like our muscle cells, that can absorb glucose and use it for energy production. But glucose isn’t absorbed right away. To be absorbed by muscle cells, the muscle cells need a hormone called insulin.

A hormone is a chemical messenger that travels in the body and usually in the blood. So to get insulin, the pancreas needs to make it, and the pancreas makes insulin when it detects a rise in the blood glucose levels. When insulin levels go up, the glucose in the blood can be absorbed by different cells. That’s when the blood glucose levels start to drop. In people with diabetes, they don’t make insulin properly. So when the blood glucose levels are high, it takes longer for it to be absorbed because insulin isn’t being made effectively, so glucose levels stay higher for longer.

Therefore, we can conclude that patient A in this graph is diabetic, while patient B is not.

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