Endocarditis laboratory findings: Difference between revisions
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{{ | {{Endocarditis}} | ||
{{CMG}} | {{CMG}}; '''Associate Editors-in-Chief:''' {{CZ}} | ||
'''Associate Editors-in-Chief:''' {{CZ | |||
== Laboratory Findings in Endocarditis== | == Laboratory Findings in Endocarditis== | ||
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=== Electrocardiogram === | === Electrocardiogram === | ||
There is no specific [[EKG]] changes that are diagnostic of [[Infective Endocarditis]]. The [[EKG]] may be useful in the detection of the 10% of patients who develop a conduction delay during [[Infective Endocarditis]] by documenting an increased [[PR interval]]. If myocardial infarction is present, it may be due to vessel occlusion with [[ST elevation myocardial infarction]] or it may be due to distal embolism which may result in [[non ST elevation MI]]. | There is no specific [[EKG]] changes that are diagnostic of [[Infective Endocarditis]]. The [[EKG]] may be useful in the detection of the 10% of patients who develop a conduction delay during [[Infective Endocarditis]] by documenting an increased [[PR interval]]. If myocardial infarction is present, it may be due to vessel occlusion with [[ST elevation myocardial infarction]] or it may be due to distal embolism which may result in [[non ST elevation MI]]. | ||
=== Chest X Ray === | === Chest X Ray === | ||
There are no specific [[chest x-ray]] findings specific for the diagnosis of endocarditis. Non specific findings would include findings of [[congestive heart failure]]. | There are no specific [[chest x-ray]] findings specific for the diagnosis of endocarditis. Non specific findings would include findings of [[congestive heart failure]]. | ||
=== MRI and CT === | === MRI and CT === | ||
A CT scan of the head should be obtained in patients who exhibit CNS symptoms or findings consistent with a mass effect (eg, macroabscess of the brain). | A CT scan of the head should be obtained in patients who exhibit CNS symptoms or findings consistent with a mass effect (eg, macroabscess of the brain). | ||
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{{reflist|2}} | {{reflist|2}} | ||
[[Category:Emergency medicine]] | |||
[[Category:Cardiology]] | [[Category:Cardiology]] | ||
[[Category:Infectious disease]] | [[Category:Infectious disease]] | ||
[[Category:Intensive care medicine]] | [[Category:Intensive care medicine]] | ||
[[Category:Up-To-Date]] | |||
{{WH}} | {{WH}} | ||
{{WS}} | {{WS}} | ||
Revision as of 13:55, 11 September 2011
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Endocarditis Microchapters |
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Diagnosis |
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Treatment |
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2014 AHA/ACC Guideline for the Management of Patients With Valvular Heart Disease |
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Case Studies |
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Endocarditis laboratory findings On the Web |
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Risk calculators and risk factors for Endocarditis laboratory findings |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editors-in-Chief: Cafer Zorkun, M.D., Ph.D. [2]
Laboratory Findings in Endocarditis
Erythrocyte Sedimentation Rate
An elevated erythrocyte sedimentation rate is present.
Leukocytosis
A marked leukocytosis is present.
Rheumatoid Factor
A positive serum rheumatoid factor may be present and is present in approximately 50% of patients with subacute disease. It becomes negative after successful treatment.
Renal Function
The serum BUN and Cr may be elevated if glomerulonephritis is present.
Urinalysis
Glomerulonephritis may be present.
Electrocardiogram
There is no specific EKG changes that are diagnostic of Infective Endocarditis. The EKG may be useful in the detection of the 10% of patients who develop a conduction delay during Infective Endocarditis by documenting an increased PR interval. If myocardial infarction is present, it may be due to vessel occlusion with ST elevation myocardial infarction or it may be due to distal embolism which may result in non ST elevation MI.
Chest X Ray
There are no specific chest x-ray findings specific for the diagnosis of endocarditis. Non specific findings would include findings of congestive heart failure.
MRI and CT
A CT scan of the head should be obtained in patients who exhibit CNS symptoms or findings consistent with a mass effect (eg, macroabscess of the brain).
Echocardiography
Echocardiography in endocarditis is discussed in its own dedicated chapter.