• What is the normal reference range for sodium (Na+) in the body?
• What are the main indications for investigating sodium levels?
• What are the main analytical methods for measuring sodium levels?
• How is hypernatremia interpreted and what are its common causes?
• How is hyponatremia interpreted and what are its common causes?
• What is the normal reference range for chloride (Cl-) in the body?
• What are the main indications for investigating chloride levels?
• How is hypochloremia interpreted and what are its common causes?
• How is hyperchloremia interpreted and what are its common causes?