Nathanael J. Mckeown

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STUDY OBJECTIVE We describe the demographics, characteristics, treatment, and clinical course of methamphetamine body stuffers. We also determine the clinical characteristics of methamphetamine body stuffers who have severe outcomes. METHODS A 6.5-year descriptive nonconcurrent observational case series evaluated methamphetamine body stuffers about whom(More)
The objective of this study was to characterize the acute clinical effects, laboratory findings, complications, and disposition of patients presenting to the hospital after abusing synthetic cathinone. We conducted a retrospective multicenter case series of patients with synthetic cathinone abuse by searching for the terms bath salts, MDPV,(More)
The clinical spectrum of hyperthyroidism varies from asymptomatic,subclinical hyperthyroidism to the life-threatening "thyroid storm". Hyperthyroidism is a common form of thyroid disease that mimics many of the common complaints in the emergency department. The diagnosis of hyperthyroidism is often challenging due to the multitude of physical and even(More)
Over the last few decades, the rate of breastfeeding has increased steadily in the developed countries of the world. During this time, opioid use in the general population has steadily increased as well. Despite this, clinicians remain unclear whether opioid use is safe during breastfeeding. While the vast majority of medications used during breastfeeding(More)
BACKGROUND Envenomation by a large number of hymenopterans can cause significant morbidity and mortality due to venom load. We present the first case of massive Hymenoptera envenomation by native US Hymenoptera. CASE A 3-year-old boy and his family were hiking in Oregon and were attacked by yellow jackets. On emergency department arrival, the child was(More)
INTRODUCTION Arsenic trioxide is available for home use in ant baits. Potential arsenic toxicity from unintentional pediatric ingestion is not well studied. The goal of this study is to describe the clinical course and urinary arsenic concentrations of children who ingested ant bait containing arsenic trioxide (0.46%). METHODS This is a case series of(More)
INTRODUCTION Ingestion of concentrated hydrogen peroxide (H(2)O(2)) has been associated with venous and arterial gas embolic events, hemorrhagic gastritis, gastrointestinal bleeding, shock, and death. Although H(2)O(2) is generally considered a benign ingestion in low concentrations, case reports have described serious toxicity following high concentration(More)
We present a case of catatonia, which occurred shortly after starting a new antipsychotic, paliperidone, an active metabolite of risperidone. Catatonia may be caused by a variety of conditions, including metabolic, neurologic, psychiatric and toxic processes. Interestingly, risperidone, which has been thought to cause several cases of catatonia, has also(More)
A 13-month-old male who ingested 20 diphenhydramine (25 mg) tablets presented with seizures and ultimately progressed to status epilepticus and wide-complex tachycardia. Due to worsening clinical course, hemodialysis was performed with temporal resolution of his symptoms. Hemodialysis may be considered in critically ill diphenhydramine overdoses not(More)