Academic emergency medicine : official journal of the Society for Academic Emergency Medicine
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Historical Article
What Emergency Physicians Should Know About Informed Consent: Legal Scenarios, Cases, and Caveats.
The basic concept of obtaining informed consent is familiar to emergency physicians, and many consider themselves well versed on the topic; however, lack of obtaining proper informed consent is a frequent source of lawsuits. The legal definitions and nuances of informed consent might surprise even the most experienced physician. ⋯ Special scenarios, caveats, and documentation recommendations are discussed. After reading this article the emergency physician will know how to practice and document the appropriate aspects of informed consent in emergency medicine, as well as understand available legal defenses if a lawsuit should arise.
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In my brief training as an emergency physician, I have experienced numerous distracting cognitive biases that have interfered with establishing proper diagnoses. Recognizing these potential barriers and appreciating them is essential to excellent patient care.
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Despite some focus on the use of intraosseous (IO) catheters to obtain laboratory samples, very little is known about the potential for obtaining other forms of clinical data. Largely unstudied is the relationship between IO pressures (IOPs) and systemic hemodynamic pressures such as mean arterial pressure (MAP) and central venous pressures (CVP). ⋯ The relationship between IOP and MAP or CVP is variable by site, with the MAP and CVP tending to be estimated by the femur and sternum, respectively. The relationship to actively rising pressures is nonlinear and a hysteresis model is proposed to explain the phase change. Further experimentation is needed to refine the IOP relationship to the MAP and CVP and assess the potential of these measurements to provide clinically relevant information.