Ключевые слова: abstract, adult, analyze, arterial, backdrop, background, blood, care, catheter, clinic, concept, examination, experience, experiment, frame, gloves, hand, health, healthcare, hospital, human, injection, job, macro, medical, medicare, medicine, nurse, nursing, pattern, practice, research, sample, science, senior, skill, sterile, study, surgery, survey, test, training, try, valve, venous, worker,