Life is in the Blood

[423 words] If you have ever went to the doctor for a checkup and had a blood test done, likely you received a report that showed many results. Now, I remember from science class many moons ago that the blood delivers nutrients and oxygen to the body’s cells. But our blood carries so much more than that. It’s amazing what all our blood can reveal. For example, if you look at your blood test results, you may see such familiar categories as glucose, sodium, potassium, calcium, and protein. You may even see categories that you have no idea what they are but your doctor knows that are important to check, like creatinine, albumin, globulin, bilirubin, and alanine transaminase. Truly the importance of blood cannot be underestimated. It carries many life-sustaining substances. Humans have not always known the importance of blood. Many people died in the olden days due to barbaric…