Absorption, Release, and Reabsorption of Medication
The sagittal view of the absorption, release, and reabsorption of medication. The first inset shows the injection of the epidural medication into the lumbar region in which some of the medication enters the circulatory system. The second inset shows the flow of medication from the lumbar region to the heart. The third inset shows the spread of medication throughout the circulatory system. The fourth inset shows the condition after death in which the medication is reabsorbed back into the circulatory system due to a change in the pH of the blood.