Introduction. Due to the still difficult and worsening epidemic situation in Poland, related to the second wave of the coronavirus pandemic (COVID-19), it turned out to be necessary to develop, prepare and conduct additional training on the work of medical personnel during the pandemic. Preventive vaccinations and their skilful implementation play a very important role.Aim. The aim of the systematic review is to present the general principles, procedures and competences of nurses in the pandemic era, this work can be used to conduct a comparative meta-analysis.Disscusion. The vaccine protects against the symptoms of COVID-19, which has been proven in clinical trials. For both the Comirnaty vaccine and the Moderna vaccine, the European Medicines Agency website states that the effect of vaccination on the transmission of the virus is unknown and whether vaccinated people can transmit SARS-CoV-2. Clinical trials are scheduled for 2 years and, as part of conditional approval, companies will complete the data after subsequent periodic evaluations.Conclusion. Over 1.5 million people worldwide have died since the outbreak of the COVID-19 epidemic. Each vaccinated person is potentially from a few to a dozen or so people protected against infection. Already 50% of the vaccinated population will significantly reduce the risk of spreading the coronavirus in it. Vaccines are the most effective method of protection against infection with various diseases. Humanity has been successfully using this achievement of civilization for several hundred years.

During hospitalization 97 years old patient had blood transfusion. This procedure lead to overload of cardiovascular system. Pharmacotherapy gradually improved the general condition of the patient. The patient was discharged in a stable state. Doubts arise; when blood should be transfused, in which cases should a blood transfusion be discontinued, what should be the recommendation for a blood transfusion for older people over the age of 90. There is a need for further research in geriatrics regarding the transfusion of blood and its components.

Purpose: The purpose of the following systematic review is to present polish regulations in terms of education, acquiring competencies in the field of prescribing drugs and medical devices. Methodology: The following review can be helpful to conduct comparative meta-analyses. Internet System of Legal Acts, PubMed, Google Scholar research was used to analyze the topic. The selected keywords were used to find information sources: law, competence, nurse, prescribing, medication, medical devices. Articles were selected according to regulations in Poland in terms of education, acquiring competencies in the field of prescribing drugs and medical devices. Main findings: The increase in nurses' competencies is equivalent to a greater need for knowledge and new knowledge acquired. Nurses take part not only in care and treatment, but also takes independent actions. In such enormous responsibilities, it is crucial to focus on the development of skills. Thus, a competent nurse is interested in continuous professional and personal growth and provides patients with high-quality nursing trustees. Implications of this study: The results should be considered in health care units, especially Primary Healthcare Units. The paper indicates the regulations in terms of education, acquiring competencies in the field of prescribing drugs which should be revised by personnel and implemented to improve the work of the healthcare unit. Novelty in this study: There is a lack of systematic reviews of the regulations in Poland in terms of education, acquiring competencies in the field of prescribing drugs and medical devices. The paper is an attempt to assess the topic.