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field a model of systems improvement in care.Pharmacy professionals have extensively studied the causes of errors in the prescribing, preparation, dispensing and administration of medications. As far back as the 1930s, pharmacists worked with physicians to select, from many options, the safest and most effective drugs available for use in hospitals. The process is known as the Formulary System and the list of drugs is known as the Formulary. In the 1960s, hospitals implemented unit dose packaging and unit dose drug distribution systems to reduce the risk of wrong drug and wrong dose errors in hospitalized patients; centralized sterile admixture services were shown to decrease the risks of contaminated and infected intravenous medications; and pharmacists provided drug information and clinical decision support directly to physicians to improve the safe and effective use of medications. Pharmacists are recognized experts in medication safety and have made many contributions that reduce error and improve patient care over the last 50 years. More recently, governments have attempted to address issues like patient-pharmacist communication and consumer knowledge through measures like the Australian Government's Quality Use of Medicines policy. Main article: Medical malpractice Standards and regulations for medical malpractice vary by country and jurisdiction within countries. Medical professionals may obtain professional liability insurances to offset the risk and costs of lawsuits based on medical malpractice.Prevention Further information: Patient safety Medical care is frequently compared adversely to aviation; while many of the factors that lead to errors in both fields are similar, aviation's error management protocols are regarded as much more effective. Safety measures include informed consent, the availability of a second practitioner's opinion, voluntary reporting of errors, root cause analysis, reminders to improve patient medication adherence, hospital accreditation, and systems to ensure review by experienced or specialist practitioners.A template has been developed for the design (both structure and operation) of hospital medication safety programmes, particularly for acute tertiary settings, which emphasizes safety culture, infrastructure, data (error detection and analysis), communication and training.Particularly to prevent the medication errors in the perspective of the intrathecal administration of local anaesthetics, there is a proposal to change the presentation and packaging of the appliances and agents used for this purpose. One spinal needle with a syringe prefilled with the local anaesthetic agents may be marketed in a single blister pack, which will be peeled open and presented before the anaesthesiologist conducting the procedure.[116]Reporting requirements In the United States, adverse medical event reporting systems were mandated in just over half (27) of the states as of 2014, a figure unchanged since 2007. In U.S. hospitals error reporting is a condition of payment by Medicare. An investigation by the Office of Inspector General, Department of Health and Human Services released January 6, 2012 found that most errors are not reported and even in the case of errors that are reported and investigated changes are seldom made which would prevent them in the future. The investigation revealed that there was often lack of knowledge regarding which events were reportable and recommended that lists of reportable events be developed.Misconceptions These are the common misconceptions about adverse events, and the arguments and explanations against those misconceptions are noted in parentheses:"Bad apples" or incompetent health care providers are a common cause. (Although human error is commonly an initiating event, the faulty care delivery process invariably permits or compounds the harm and so is the focus of improvement.)High-risk procedures or medical specialties are responsible for most avoidable adverse events. (Although some mistakes, such as in surgery, are harder to conceal, errors occur in all levels of care.[Even though complex