A New York woman with coronavirus symptoms died last week after being prescribed a drug cocktail with known cardiac side effects, and family members say she was not tested for COVID-19 or for heart problems before receiving the medication. The family’s experience suggests that at least some physicians are prescribing hydroxychloroquine and azithromycin — drugs President Donald Trump has promoted to treat the coronavirus — outside of hospital settings, underscoring why major medical organizations including the American Heart Association have issued warnings about the drug’s potential to trigger heart arrhythmia in some patients. In early April, Ligia, a 65-year-old Queens...