Fever: Difference between revisions
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imported>Robert Badgett (New page: '''Fever''' is defined as "an abnormal elevation of body temperature, usually as a result of a pathologic process."<ref>{{cite web |url=http://www.nlm.nih.gov/cgi/mesh/2007/MB_cgi?term=Fev...) |
imported>Robert Badgett |
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Assuming that local inflammatory processes such as an [[abscess]] or [[cellulitis]] are not present, several clinical findings can suggest the underlying cause of an acute fever. | Assuming that local inflammatory processes such as an [[abscess]] or [[cellulitis]] are not present, several clinical findings can suggest the underlying cause of an acute fever. | ||
''' | * '''Influenza-like illness''' is defined as "fever (temperature of 100°F [37.8°C] or greater) and a cough and/or a sore throat in the absence of a known cause other than [[influenza]]."<ref name="titleCDC">{{cite web |url=http://www.cdc.gov/flu/weekly/fluactivity.htm |title=CDC - Influenza (Flu) - Flu Activity|author=Centers for Disease Control and Prevention |accessdate=2007-11-19 |format= |work=|year=2007}}</ref> Possible causes include respiratory syncytial virus, rhinovirus, [[human adenovirus|adenovirus]], parainfluenza viruses, coronaviruses, and metapneumovirus.<ref name="pmid15227858">{{cite journal |author=Kelly H, Birch C |title=The causes and diagnosis of influenza-like illness |journal=Australian family physician |volume=33 |issue=5 |pages=305–9 |year=2004 |pmid=15227858 |doi=}}</ref> | ||
''' | * '''Mononucleosis-like illness''' is the triad of fever, pharyngitis, and lymphadenopathy which suggests [[infectious mononucleosis]]. Other possible causes include cytomegalovirus (CMV), human herpesvirus 6 (HHV-6), [[human immunodeficiency virus]] (HIV), [[human adenovirus]], herpes simplex virus (HSV), Streptococcus pyogenes, and Toxoplasma gondii.<ref name="pmid17904463">{{cite journal |author=Hurt C, Tammaro D |title=Diagnostic evaluation of mononucleosis-like illnesses |journal=Am. J. Med. |volume=120 |issue=10 |pages=911.e1–8 |year=2007 |pmid=17904463 |doi=10.1016/j.amjmed.2006.12.011}}</ref> | ||
''' | * '''Relative bradycardia''' is when the "pulse is less than expected at a given body temperature"<ref name="pmid18003964">{{cite journal |author=Babyatsky MW, Keroack MD, Blake MA, Rosenberg ES, Mino-Kenudson M |title=Case 35-2007 -- A 30-Year-Old Man with Inflammatory Bowel Disease and Recent Onset of Fever and Bloody Diarrhea |journal= |volume=357 |issue=20 |pages=2068–2076 |year=2007 |pmid=18003964 |doi=10.1056/NEJMcpc079029}}</ref> Relative bradycardia suggests an intracellular organism such as [[salmonella]], [[legionella]], and [[chlamydia]].<ref name="pmid18003964"/> Other causes include [[Sandfly fever]] and [[Dengue fever]]. | ||
'''Headache''', when prominent, suggests [[West Nile Virus]]. | * '''Arthropathy''', when prominent, suggests [[Parvovirus B19]]. | ||
* '''Myalgias''', when prominent, suggests [[Dengue fever]]. | |||
* '''Headache''', when prominent, suggests [[West Nile Virus]]. | |||
==Fever of unknown origin== | ==Fever of unknown origin== | ||
Revision as of 22:36, 19 November 2007
Fever is defined as "an abnormal elevation of body temperature, usually as a result of a pathologic process."[1]
Acute febrile illness
Assuming that local inflammatory processes such as an abscess or cellulitis are not present, several clinical findings can suggest the underlying cause of an acute fever.
- Influenza-like illness is defined as "fever (temperature of 100°F [37.8°C] or greater) and a cough and/or a sore throat in the absence of a known cause other than influenza."[2] Possible causes include respiratory syncytial virus, rhinovirus, adenovirus, parainfluenza viruses, coronaviruses, and metapneumovirus.[3]
- Mononucleosis-like illness is the triad of fever, pharyngitis, and lymphadenopathy which suggests infectious mononucleosis. Other possible causes include cytomegalovirus (CMV), human herpesvirus 6 (HHV-6), human immunodeficiency virus (HIV), human adenovirus, herpes simplex virus (HSV), Streptococcus pyogenes, and Toxoplasma gondii.[4]
- Relative bradycardia is when the "pulse is less than expected at a given body temperature"[5] Relative bradycardia suggests an intracellular organism such as salmonella, legionella, and chlamydia.[5] Other causes include Sandfly fever and Dengue fever.
- Arthropathy, when prominent, suggests Parvovirus B19.
- Myalgias, when prominent, suggests Dengue fever.
- Headache, when prominent, suggests West Nile Virus.
Fever of unknown origin
References
- ↑ National Library of Medicine. Fever. Retrieved on 2007-11-16.
- ↑ Centers for Disease Control and Prevention (2007). CDC - Influenza (Flu) - Flu Activity. Retrieved on 2007-11-19.
- ↑ Kelly H, Birch C (2004). "The causes and diagnosis of influenza-like illness". Australian family physician 33 (5): 305–9. PMID 15227858. [e]
- ↑ Hurt C, Tammaro D (2007). "Diagnostic evaluation of mononucleosis-like illnesses". Am. J. Med. 120 (10): 911.e1–8. DOI:10.1016/j.amjmed.2006.12.011. PMID 17904463. Research Blogging.
- ↑ 5.0 5.1 Babyatsky MW, Keroack MD, Blake MA, Rosenberg ES, Mino-Kenudson M (2007). "Case 35-2007 -- A 30-Year-Old Man with Inflammatory Bowel Disease and Recent Onset of Fever and Bloody Diarrhea" 357 (20): 2068–2076. DOI:10.1056/NEJMcpc079029. PMID 18003964. Research Blogging.