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Symptom/Finding bradycardia Description Slow heart rate; Bradyarrhythmia; In infectious diseases, a relative bradycardia is defined as <140 for 105, <130 for 104, <120 for 103, < 110 for 102, and <100 for 101 degrees Fahrenheit. [ID, p. 56] Category Cardiovascular ICD-9 Code 427.89 Medical Subject Heading Search PubMed Related Information in Haz-Map Diseases Diseases associated with this finding or symptom: Arenaviral hemorrhagic fevers (S. America) Asphyxiation, chemical Babesiosis Ciguatera fish poisoning Crimean-Congo hemorrhagic fever Dengue fever Ebola-Marburg viral diseases Hemorrhagic fever with renal syndrome Hepatitis A Kyasanur forest disease Lassa fever Legionellosis Leptospirosis Lymphocytic choriomeningitis Malaria Organophosphate & carbamates, acute Psittacosis Rift valley fever Tularemia Typhoid fever Typhus, mite-borne scrub Vesicular stomatitis fever Yellow fever

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