Preparing novice physicians for an unknown clinical future in healthcare is challenging. This is especially true for emergency departments (EDs) where the framework of adaptive expertise has gained traction. When medical graduates start residency in the ED, they must be supported in becoming adaptive experts. However, little is known about how residents can be supported in developing this adaptive expertise. This was a cognitive ethnographic study conducted at two Danish EDs. The data comprised 80 h of observations of 27 residents treating 32 geriatric patients. The purpose of this cognitive ethnographic study was to describe contextual factors that mediate how residents engage in adaptive practices when treating geriatric patients in the ED. Results showed that all residents fluidly engaged in both adaptive and routine practices, but they were challenged when engaging in adaptive practices in the face of uncertainty. Uncertainty was often observed when residents' workflows were disrupted. Furthermore, results highlighted how residents construed professional identity and how this affected their ability to shift between routine and adaptive practices. Residents reported that they thought that they were expected to perform on par with their more experienced physician colleagues. This negatively impacted their ability to tolerate uncertainty and hindered the performance of adaptive practices. Thus, aligning clinical uncertainty with the premises of clinical work, is imperative for residents to develop adaptive expertise.

Clinical decision-making (CDM) is an important competency for young doctors especially under complex and uncertain conditions in geriatric emergency medicine (GEM). However, research in this field is characterized by vague conceptualizations of CDM. To evolve and evaluate evidence-based knowledge of CDM, it is important to identify different definitions and their operationalizations in studies on GEM.

A scoping review of empirical articles was conducted to provide an overview of the documented evidence of findings and conceptualizations of CDM in GEM.

A detailed search for empirical studies focusing on CDM in a GEM setting was conducted in PubMed, ProQuest, Scopus, EMBASE and Web of Science. In total, 52 publications were included in the analysis, utilizing a data extraction sheet, following the PRISMA guidelines. Reported outcomes were summarized.

Four themes of operationalization of CDM emerged: CDM as dispositional decisions, CDM as cognition, CDM as a model, and CDM as clinical judgement. Study results and conclusions naturally differed according to how CDM was conceptualized. Thus, frailty-heuristics lead to biases in treatment of geriatric patients and the complexity of this patient group was seen as a challenge for young physicians engaging in CDM.

This scoping review summarizes how different studies in GEM use the term CDM. It provides an analysis of findings in GEM and call for more stringent definitions of CDM in future research, so that it might lead to better clinical practice.

The study aimed to compare the time to overall length of stay (LOS) for patients who underwent point-of-care ultrasound (POCUS) versus radiology department ultrasound (RDUS).

This was a prospective study on a convenience sample of patients who required pelvic ultrasound imaging as part of their emergency department (ED) assessment.

We enrolled a total of 194 patients who were on average 32 years-old. Ninety-eight (51%) patients were pregnant (<20 weeks). Time to completion of RDUS was 66 minutes longer than POCUS (95%CI 60-73, P<0.01). Patients randomized to the RDUS arm experienced a 120 minute longer ED length of stay (LOS) (95%CI 66-173, P<0.01).

In patients who require pelvic ultrasound as part of their diagnostic evaluation, POCUS resulted in a significant decrease in time to ultrasound and ED LOS.

Emergency physicians are required to care for unstable patients with life-threatening conditions, and thus must make decisions that are both quick and precise about unclear clinical situations. There is increasing consensus in favor of using ultrasound as a real-time bedside clinical tool for clinicians in emergency settings alongside the irreplaceable use of historical and physical examinations. B-mode sonography is an old technology that was first proposed for medical applications more than 50 years ago. Its application in the diagnosis of thoracic diseases has always been considered limited, due to the presence of air in the lung and the presence of the bones of the thoracic cage, which prevent the progression of the ultrasound beam. However, the close relationship between air and water in the lungs causes a variety of artifacts on ultrasounds. At the bedside, thoracic ultrasound is based primarily on the analysis of these artifacts, with the aim of improving accuracy and safety in the diagnosis and therapy of the various varieties of pulmonary pathologic diseases which are predominantly "water-rich" or "air-rich". The indications, contraindications, advantages, disadvantages, and techniques of thoracic ultrasound and its related procedures are analyzed in the present review.

The use of point-of-care ultrasound in the pediatric emergency department is evolving beyond conventional applications as users become more expert with the technology. In this case series, we describe the potential utility of recognizing abnormal anatomy to impact care in the context of possible cancer in pediatric patients. We describe 4 patients with Langerhans histiocytosis, neuroblastoma, Wilms tumor, and rhabdomyosarcoma, in which point-of-care ultrasound was used to facilitate the diagnoses.