Objective: The research aim was to analyze the function of focused cardiac ultrasonography (FoCUS) in diagnosing a pulmonary embolism (PE) and contributing to the practice of emergency medicine and expediting the treatment of PE. Materials and Methods: In this prospective and observational study, Wells scores were calculated on those patients who presented to the emergency department over the last 2 years and were evaluated with a preliminary diagnosis of PE, as well as the biochemical values and imaging techniques. In all cases, FoCUS was used as the diagnostic tool. Results: A PE was detected in 38 (63.3%) of 60 patients. According to Wells score, it was determined that 5 (8.3%) patients had low-risk, 41 (68.3%) had medium-risk, and 14 (23.3%) had high-risk Wells score. There was a statistically significant correlation between the existence of PE and the findings of FoCUS in patients with right ventricular dilatation ( P < .001). According to Wells score, moderate-risk individuals with PE were more likely to exhibit right ventricular dilatation ( P = .003). Conclusion: The FoCUS results either alone or in conjunction with the Wells score, reviewed in the diagnosis of PE, effectively indicated and directed the diagnosis and treatment of patients admitted to this particular emergency department.

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One of the most important steps for preventing deaths due to snake bites is to administer snake antivenom to the eligible patients in a swift manner. In our study, we aimed to investigate whether procalcitonin is useful for predicting the clinical severity and the necessity of antivenom therapy at the early stages in patients presenting with snake bite. A total of 78 patients over the age of 18 who applied to the emergency department within the first 24 hours were included in this retrospective cross-sectional study. Age and sex of patients, severity of snake bites, total antivenom vials administered, observation periods and outcomes were recorded. Patients were graded according to their clinical severity after the snake bite. Procalcitonin, complete blood count and biochemical parameters of the patients were recorded. According to their clinical severity, the patients' grades were as follows: 21 (26.9%) patients were grade 0; 21 patients (26.9%) were grade 1; 16 patients (20.5%) were grade 2; and 20 patients (25.6%) were grade 3. Snake antivenom was administered to 57 (73.1%) patients. There was a statistically significant difference between procalcitonin levels of patients in respect to their grade (P < 0.001). Sensitivity and specificity of procalcitonin levels of 13.45 and above were 100% and 100% respectively, both for the need of antivenom administration and for the blister formation in the patients. According to our study, we believe that elevated procalcitonin levels should alert the clinicians for possible blister formation, higher clinical severity, and increased requirement for antivenom administration.