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Anemia, defined as a low hemoglobin concentration, has a large impact on the health of the world’s population. We describe the use of a ubiquitous device, the smartphone, to predict hemoglobin concentration and screen for anemia. This was a prospective convenience sample study conducted in Emergency Department (ED) patients of an academic teaching hospital. In an algorithm derivation phase, images of both conjunctiva were obtained from 142 patients in Phase 1 using a smartphone. A region of interest targeting the palpebral conjunctiva was selected from each image. Image-based parameters were extracted and used in stepwise regression analyses to develop a prediction model of estimated hemoglobin (HBc). In Phase 2, a validation model was constructed using data from 202 new ED patients. The final model based on all 344 patients was tested for accuracy in anemia and transfusion thresholds. Hemoglobin concentration ranged from 4.7 to 19.6 g/dL (mean 12.5). In Phase 1, there was a significant association between HBc and laboratory-predicted hemoglobin (HBl) slope = 1.07 (CI = 0.98–1.15), p

Introduction Patients with substance use disorder may be particularly vulnerable to withdrawal-related complications during the SARS-CoV-2 (COVID-19) pandemic. Limited availability of alcohol and other substances coupled with decreased accessibility to substance use treatment poses a substantial risk to this population. Isopropanol, the active ingredient in rubbing alcohol, is widely available; thus, it may be used in times of scarcity. Case report We present a case of intentional isopropanol ingestion used as an ethanol surrogate within the setting of the COVID-19 pandemic. Conclusions Toxic alcohol ingestions are imperative considerations on the differential for the intoxicated patient particularly during resource-limited times.