Biology B Tutorial Eight-Renal System 3. Consider the following situations which require you to take what you have learnt and apply it to clinical settings: (a) Why would finding protein in urine (proteinuria) be considered a concern? (b) By describing the passage of glucose in the kidney explain why a diabetic patient might have glucose in his/her urine. (c) Diuretics increase urine volume, and by so doing can reduce high blood pressure. One common diuretic, furosemide, blocks transport of sodium and other ions out of the ascending limb of the loop of Henle. Explain how this would be expected to lead to increased urination. 3 Biology B Tutorial Eight-Renal System 4. Control of sodium ion concentration is essential in regulating blood pressure and sustaining life. Outline the mechanism in which the renin-angiotensin-aldosterone system (RAAS) works to maintain blood pressure. Consider the role of the liver, kidney, lungs and adrenal glands and the various hormones. You may wish to construct a flow diagram, a concept map or dot points which outline the key processes. Using your answer, explain why a doctor might prescribe ACE inhibitors to an individual with high blood pressure.