Lääkepitoisuutta
Lääkepitoisuutta refers to the concentration of a drug in a biological fluid, most commonly blood plasma. Understanding lääkepitoisuutta is crucial in pharmacology and medicine for several reasons. It helps determine the appropriate dosage of a medication to achieve therapeutic effects while minimizing toxicity. Measuring lääkepitoisuutta allows clinicians to monitor patient response to treatment and adjust dosages if necessary. This is particularly important for drugs with a narrow therapeutic index, where the difference between an effective dose and a toxic dose is small. Lääkepitoisuutta can be influenced by numerous factors including the route of administration, the rate of absorption and distribution, the rate of metabolism, and the rate of excretion. Individual patient characteristics such as age, weight, kidney function, liver function, and genetic makeup can also significantly impact drug concentrations. Therapeutic drug monitoring (TDM) is a clinical practice that involves measuring lääkepitoisuutta to optimize drug therapy. This practice is often used for drugs like certain antibiotics, antiepileptics, immunosuppressants, and cardiac medications. By maintaining lääkepitoisuutta within a specific therapeutic range, clinicians aim to maximize efficacy and patient safety.