Shared liability? Consultants, pharmacists, and the emergency physician: legal cases and caveats.

In caring for patients in the Emergency Department (ED), the emergency physician (EP) will often utilize consulting specialists and pharmacists. In the event of an untoward patient outcome, disagreement may arise regarding the liability of each provider. Here, we review a series of malpractice cases involving consulting physicians and pharmacists to illustrate the legal principles of physician-patient relationships and physician duty. Determination of liability in the courts will rest, in part, on whether a physician-patient relationship was formed via an "affirmative act". Consulting physicians may establish a relationship through an overt or implied agreement to participate in a patient's care, or by reviewing specific tests and studies for the purpose of diagnosis and treatment. The courts have defined the duty of the pharmacist to safely dispense medication, and have ascribed the duty to warn of medication side effects to the prescribing physician.

Effect of hydroxocobalamin on surface oximetry in nonexposed humans.

INTRODUCTION: The newer cyanide antidote, hydroxocobalamin, due to its pigmentation, has been found to cause interferences in some laboratory assays. Co-oximetry may also be affected by hydroxocobalamin, leading to false elevations in hemoglobin concentration, methemoglobin, carboxyhemoglobin, and false decreases in oxyhemoglobin. The Masimo Radical-7 is a medical device that performs noninvasive oximetry and estimates hemoglobin (Hb) concentration and percent carboxyhemoglobin (COHb), methemoglobin (MetHb), and oxyhemoglobin saturation (O2Hb). STUDY OBJECTIVES: The study sought to determine the effect of hydroxocobalamin on noninvasive measurement of hemoglobin indices using the Masimo Radical-7 monitor. METHODS: Seven asymptomatic volunteers who were unexposed to cyanide had baseline heart rate (HR), blood pressure (BP), and oximeter measurements recorded followed by an infusion of five grams of hydroxocobalamin over 15 minutes. The above parameters were subsequently recorded at: 5, 10, 15, 30 and 60 minutes post infusion. Data were analyzed by calculating the area under the curve (AUC) for each variable and comparing the results to expected values by paired t tests. Expected AUC values were calculated by extrapolating baseline values across the entire time period. RESULTS: The mean differences from baseline values with 95% confidence intervals and t tests of mean difference were: SBP: 11 mm Hg (95% CI, 0-22; P = .051); HR: -9 (95% CI, -15 to -3; P = .01); Hb: -0.1 (95% CI, -0.7 to 0.4; P = .57); O2Hb: 0 g/dL (95% CI, -1 to 1; P = .41); COHb: -1 (95% CI, -3 to 1; P = .25); MetHb: -0.2 (95% CI, -0.3 to 0; P = .03). DISCUSSION: After infusion of hydroxocobalamin there was a significant elevation of systolic blood pressure and decrease in heart rate. There were no significant differences in Hb, O2Hb, and COHb. Although percent methemoglobin concentrations were statistically lower, the authors feel this difference is of trivial clinical significance. CONCLUSION: The administration of hydroxocobalamin does not significantly impact noninvasive oximetry.

End-of-Shift Evaluations: Experiences Over a Quarter-Century.

For the past 25 years, the San Antonio Uniformed Services Health Education Consortium (SAUSHEC) Emergency Medicine Residency has used an end-of-shift evaluation (ESE) to provide formative feedback and assess resident progress. The instrument has evolved from a simple half-sheet of paper to a more complex electronic milestones assessment. The length and detail of the evaluation form has grown appreciably, but the precise impact of these changes on the effectiveness of formative feedback unknown. The authors present a narrative description of the evolution of this instrument in response to changing requirements and efforts to optimize its utility. Our experiences over the past quarter-century are presented in the context of now-common utilization of similar evaluation tools among emergency medicine (EM) training programs. The evolution of our ESE instrument may be of historical interest to EM educators and provide examples for those seeking to develop or adapt their own evaluation tools.

A Case of Brodie's Abscess With Tibial Erosion and Extravasation Into Surrounding Soft Tissue.

Atraumatic limb pain and limp is a common pediatric presentation in the emergency department in the United States. In a majority of cases, these presentations are benign. However, in cases where pediatric patients are repeatedly presenting for atraumatic limb pain, further investigation is required. We present such the case of a 14-year-old female with acute worsening of progressive atraumatic knee pain who was found to have a Brodie's abscess, a subacute pyogenic form of osteomyelitis. This is a particularly challenging diagnosis, as it often presents with no associated symptoms such as fever or weight loss. The consequences of missing this diagnosis include permanent disability and potential amputation, but excellent outcomes can be expected for those who undergo timely surgical debridement and irrigation. We discuss the etiology, common presentations, and treatment of this rare but potentially limb-threatening disease in the hope that clinicians will consider this diagnosis in cases of persistent or progressive atraumatic limb pain.

Emergency Physicians: Beware of the Consent Standard of Care.

Many emergency physicians view informed consent as a necessary component of treatments or procedures to be performed on their patients. When such procedures are necessary, often there is a discussion of risks, benefits and alternatives with forms signed to validate the discussion. Two Wisconsin emergency department medical-legal cases have expanded liability of the duty of informed consent. These cases have focused on withholding medication and diagnostic tests.

Comparison of Preloaded Bougie versus Standard Bougie Technique for Endotracheal Intubation in a Cadaveric Model.

INTRODUCTION: We compared intubating with a preloaded bougie (PB) against standard bougie technique in terms of success rates, time to successful intubation and provider preference on a cadaveric airway model. METHODS: In this prospective, crossover study, healthcare providers intubated a cadaver using the PB technique and the standard bougie technique. Participants were randomly assigned to start with either technique. Following standardized training and practice, procedural success and time for each technique was recorded for each participant. Subsequently, participants were asked to rate their perceived ease of intubation on a visual analogue scale of 1 to 10 (1=difficult and 10=easy) and to select which technique they preferred. RESULTS: 47 participants with variable experience intubating were enrolled at an emergency medicine intern airway course. The success rate of all groups for both techniques was equal (95.7%). The range of times to completion for the standard bougie technique was 16.0-70.2 seconds, with a mean time of 29.7 seconds. The range of times to completion for the PB technique was 15.7-110.9 seconds, with a mean time of 29.4 seconds. There was a non-significant difference of 0.3 seconds (95% confidence interval -2.8 to 3.4 seconds) between the two techniques. Participants rated the relative ease of intubation as 7.3/10 for the standard technique and 7.6/10 for the preloaded technique (p=0.53, 95% confidence interval of the difference -0.97 to 0.50). Thirty of 47 participants subjectively preferred the PB technique (p=0.039). CONCLUSION: There was no significant difference in success or time to intubation between standard bougie and PB techniques. The majority of participants in this study preferred the PB technique. Until a clear and clinically significant difference is found between these techniques, emergency airway operators should feel confident in using the technique with which they are most comfortable.