Free

Free is a term often used in the medical field to describe a state or condition where a patient or a substance is not bound or attached to any other substance or condition. It is often used in the context of free radicals, free drugs, free air, etc.

Free Radicals

Free radicals are atoms, molecules, or ions with unpaired electrons on an open shell configuration. They are highly reactive and can have harmful effects on the body. They are often associated with oxidative stress and various diseases such as cancer, cardiovascular diseases, and neurodegenerative diseases.

Free Drugs

Free drugs refer to the portion of a drug that is not bound to protein in the blood. This is the active part of the drug that can exert its therapeutic effect. The ratio of free drug to protein-bound drug can be influenced by various factors such as drug interactions, disease states, and individual patient characteristics.

Free Air

Free air in the medical context usually refers to the presence of air in the abdominal cavity (pneumoperitoneum) which is not in the lungs or within the gastrointestinal tract. This can be a sign of a serious condition such as a perforated abdominal organ.

See Also

• Oxidative stress
• Pharmacokinetics
• Pneumoperitoneum

References

Free Resources
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