Questions about example sentences with, and the definition and usage of "Potassium"

A: × Since potassium has important roles in a nerve conduction and maintaining our blood pressure, hypokalemia and hyperkalemia can lead to problems in the nerve, muscle and heart.
✓ Since potassium has important roles in nerve conduction and maintaining blood pressure, hypokalemia and hyperkalemia can lead to problems in nerves, muscles, and the heart.

× The mechanism of secreting potassium and maintaining blood pressure is called renin-angiotensin-aldosterone system (RAA system).
✓ The mechanism for secreting potassium and maintaining blood pressure is called the renin-angiotensin-aldosterone system (RAA system).

× When the blood pressure gets low, kidney produces renin, which turns angiotensinogen into angiotensin I, which is produce in liver.
✓ When blood pressure gets low, kidney produces renin, which turns angiotensinogen into angiotensin I, which is produced in liver.

× Angiotensin I is activated by ACE (angiotensin converting enzyme) and turned into angiotensin II.
✓ Angiotensin I is activated by ACE (angiotensin converting enzyme), which turns it into angiotensin II.

× Angiotensin II effects kidney and make it produce aldosterone, resulting potassium secretion and increase of blood pressure.
✓ Angiotensin II causes the kidneys to produce aldosterone, resulting in potassium secretion and an increase of blood pressure.

× Hypokalemia can leaded by various kinds of diseases.
✓ Hypokalemia can lead to various kinds of diseases. (Or “can be caused by various kinds of diseases”

× If the hypokalemia is occurred with high blood pressure, it is caused by enhancement of RAA system.
✓ If hypokalemia occurs with high blood pressure, it is due to the activation of RAA system.

× Renin can increase by renovascular hypertension (RVHT) and aldosterone can increase by primary aldosteronism.
✓ Renin can be increased by renovascular hypertension (RVHT) and aldosterone can increase due to primary aldosteronism.

× If the hypokalemia is occurred without high blood pressure, it can caused by cognitive diseases such as Bartter syndrome or Gitelman syndrome.
✓ If hypokalemia occurs without high blood pressure, it may be caused by cognitive diseases such as Bartter syndrome or Gitelman syndrome.

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