Ralph F Bloch

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The universal precautions recommended by the US Centers for Disease Control (CDC), Atlanta, for the prevention of HIV (human immunodeficiency virus) transmission to health care workers are widely accepted, despite little documentation of their effectiveness and efficiency. We reviewed the evidence on the risk of HIV transmission to hospital workers and the(More)
In a double-blind, placebo-controlled trial, 225 patients with acute partial stable thrombotic stroke were randomly assigned to receive continuous intravenous heparin therapy or placebo for 7 days for the prevention of stroke progression or death. No statistically significant difference between the two groups was found in degree of neurologic change;(More)
Profound bradycardia is a common complication in the early posttraumatic period following cervical spinal cord damage. It is thought to be due to temporary inactivity of the sympathetic nervous system after separation from supraspinal control, coupled with unopposed parasympathetic dominance because of vagus nerve sparing. Hypoxia, underventilation, and(More)
Plasma betathromboglobulin (BTG) and serum fragment E (FgE) were measured serially by radioimmunoassay for 7 d in 67 patients admitted with acute partial stroke. Twelve patients progressed within 7 d of admission. Plasma BTG was not different from normal in patients with acute partial stroke and did not increase significantly with stroke progression. Serum(More)
BACKGROUND Diagnostic reasoning is a key competence of physicians. We explored the effects of knowledge, practice and additional clinical information on strategy, redundancy and accuracy of diagnosing a peripheral neurological defect in the hand based on sensory examination. METHOD Using an interactive computer simulation that includes 21 unique cases(More)
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