What Factors Affect Diffusion According to Fick's Law?
Several factors influence diffusion as described by Fick's Law:
Concentration Gradient: A higher concentration gradient increases the rate of diffusion. Nurses can manipulate this by administering higher concentrations of oxygen to patients in respiratory distress. Surface Area: An increase in surface area enhances diffusion. For instance, alveolar damage reduces surface area, impairing gas exchange. Membrane Thickness: Thicker membranes slow down diffusion. Conditions like fibrosis or edema require interventions to reduce membrane thickness or improve the concentration gradient. Diffusion Coefficient: This is specific to the substance and medium involved. Understanding this helps in selecting appropriate therapeutic agents and modalities.
