Fluid balance

Definition

Fluid balance refers to the maintenance of the proper amount and distribution of fluids in the body. It is crucial for normal physiological functions and overall homeostasis.

5 Must Know Facts For Your Next Test

1. Fluid balance is regulated by mechanisms involving the kidneys, hormones like antidiuretic hormone (ADH), and thirst.
2. Electrolyte levels, such as sodium and potassium, play a significant role in maintaining fluid balance.
3. Dehydration and overhydration are conditions that arise from imbalances in fluid intake and excretion.
4. Intravenous (IV) therapy can be used to correct fluid imbalances in clinical settings.
5. Monitoring fluid balance involves measuring input (e.g., drinking, IV fluids) and output (e.g., urine, sweat).

Review Questions

• What are the primary organs and hormones involved in regulating fluid balance?
• How do electrolyte levels affect fluid balance within the body?
• What are common clinical methods for correcting fluid imbalances?

Related terms

Homeostasis:

The body's ability to maintain a stable internal environment despite changes in external conditions.

Electrolytes:

Minerals in your blood and other body fluids that carry an electric charge essential for various bodily functions.

Antidiuretic Hormone (ADH):

A hormone that helps your kidneys manage the amount of water in your body by concentrating urine.