“A patient harm while the medication is in the

“A medication error is any preventable event that may cause or lead to inappropriate medication use or patient harm while the medication is in the control of the health care professional, patient, or consumer. Such events may be related to professional practice, health care products, procedures, and systems, including prescribing, order communication, product labeling, packaging, and nomenclature, compounding, dispensing, distribution, administration, education, monitoring, and use.” (What is a medication error, 2018)The best way to understand how medication errors happen and how to avoid them is to consider their classification, which can be contextual, modal, or psychological. Contextual classification deals with the specific time, place, medicines and people involved. Modal classification examines the ways in which errors occur (for example, by omission, repetition or substitution). Psychological classification is to be preferred, as it explains events rather than merely describing them. (Aronson, 2009)The four broad types of medication errors are knowledge, rule, action based and memory. Knowledge based errors or lack of knowledge are giving a patient a medication without having a complete patient history, whether they are allergic, dosing calculations, or communication issues. Knowledge errors are easily avoidable by knowing about the medication and the patient to whom you are administering it to. Education is key to preventing these errors. Computerized systems, bar-coded medication systems and checking with peers can help intercept these kinds of errors. Rule-based errors (using a bad rule or misapplying a good rule)—for example, injecting diclofenac into the lateral thigh rather than the buttock. Proper rules and education help to avoid these types of error, as do computerized prescribing systems. (Aronson, 2009) An action based error and also be referred to as a slip.BibliographyAronson, J. (2009, May 20). Retrieved from https://academic.oup.com/qjmed/article/102/8/513/1598923What is a medication error. (2018). Retrieved from NCCMERP: http://www.nccmerp.org/about-medication-errors