Prevenção de erros pré-analíticos em testes de cuidados intensivos: K, Na, Ca ionizado, pO2 / CO-oximetria e Lactato
Duração: 1 hora
Este webinar abordará questões como técnicas de coleta, contaminação com fluidos IV, hemólise, problemas de transporte, incluindo atrasos e transporte pneumático, efeitos de anticoagulantes, mistura inadequada e coleta de sangue com tubos capilares. Para ilustrar alguns desses pontos, vários exemplos de casos serão apresentados.
Os participantes irão:
- Descrever as causas comuns de erros pré-analíticos:
- Coleta de amostra: contaminação de fluido IV, hemólise, coágulos, anticoagulante errado, etc.
- Transporte de amostra: gelo, atraso de tempo, transporte pneumático
- Listar as causas comuns de hemólise e como relatar os resultados em amostras hemolisadas:
- Ruptura celular durante a coleta, compressão de tecido, atrasos no transporte, temperaturas extremas, força de centrifugação, in vivo.
3. Implementar práticas para minimizar erros pré-analíticos nos testes de Na, K, Ca ionizado, lactato e gasometria / oximetria.
Palestrante:
John Toffaletti
Lab Director; Professor of Pathology
Dr. Toffaletti joined the faculty at Duke University Medical Center in 1979 after receiving his PhD from University of North Carolina, Chapel Hill and completing residency training in clinical chemistry at Hartford Hospital. He is now Professor of Pathology and has served in a variety of positions including Associate Director of Clinical Chemistry, Director of Blood Gas Laboratory, Director of the Clinical Pediatric Laboratory, and Director of (three) Outpatient Laboratories. He has authored over 60 publications in peer-reviewed journals and including definitive works on identifying the specific forms of bound calcium in serum, their physiologic importance, and their effects on parathyroid hormone (PTH) secretion in humans. In the area of magnesium, his work on PTH secretion was the first to confirm the specific effect of ionized magnesium on PTH secretion while ionized calcium was held constant as confirmed by direct measurement of ionized calcium. Dr. Toffaletti has published reports on blood lactate measurements in critical care and the effects of sample collection, storage, and transport on clinical laboratory measurements, notably one showing how pneumatic transport affects pO2 results. Additionally, Dr. Toffaletti authored two editions of Blood Gases and Electrolytes (AACC Press) having sold over 1500 copies since 2002.