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| ==Definition==
| | #REDIRECT[[Acute fever]] |
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| Defined as Temp >37.8 C (100.4 F)
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| >41.0 C (105 F) needs urgent Tx (damage neurons)
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| ==DDX==
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| A. Infectious
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| 1) Critical
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| * Sepsis
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| * PNA w/ resp failure
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| * Peritonitis
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| * Meningitis
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| * Cavernous sinus thrombosis
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| * Necrotizing fasciitis
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| 2) Emergent
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| * PNA
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| * Peritonsillar abscess
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| * Retropharyngeal abscess
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| * Epiglottitis
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| * Endocarditis
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| * Pericarditis
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| * Appendicitis
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| * Cholecystitis
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| * Diverticulitis
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| * Intra-abdominal abscess
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| * Pyelo
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| * Tubo-ovarian abscess
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| * Encephalitis
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| * Brain abscess
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| * Cellulitis
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| * Abscess
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| * Malaria
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| 3) Non-emergent
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| * OM
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| * Sinusitis
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| * Pharyngitis
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| * Influenza
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| * Tb
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| * UTI
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| * Epididymitis
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| * Prostatitis
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| B. Non-infectious
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| 1) Critical
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| * AMI
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| * PE
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| * Intracranial hemorrhage
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| * CVA
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| * NMS
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| * Thyroid storm
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| * Acute adrenal insufficiency
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| * Transfusion Rx
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| * Pulmonary edema
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| * Heatstroke
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| * Malignant hyperthermia
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| 2) Emergent
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| * CHF
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| * Dehydration
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| * Recent Seizure
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| * Sickle cell dz
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| * Transplant rejection
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| * Pancreatitis
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| * DVT
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| * Serotonin Syndrome
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| 3) Non-emergent
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| * Drug fever (except as in NMS, Serotonin syndrome)
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| * Malignancy
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| * Gout
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| * Sarcoidosis
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| * Crohn's dz
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| * Postmyocardiotomy sy
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| ==DDx by Heart Rate==
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| Fever 0.55 C increases HR ~10bts/min
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| A. Relative bradycardia
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| * Concomitant medication
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| * Drug fever
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| * Typhoid
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| * Brucellosis
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| * Leptospirosis
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| B. Frank bradycardia
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| * Rheumatic fever
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| * Lyme dz
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| * Viral myocarditis
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| * Endocarditis
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| ==Source ==
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| 2/26/06 DONALDSON (adapted from Rosen)
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| [[Category:ID]]
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