Empyema laboratory findings: Difference between revisions

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==Overview==
==Overview==


==Laboratory Findings==
==Laboratory Findings==
Diagnosis is confirmed by [[thoracentesis]]; frank pus may be aspirated from the pleural space. The pleural fluid typically has a low pH (<7.20), low glucose (<60 mg/dL), and contains infectious organisms. Therefore, the diagnosis relies on the presence of pus or organisms on gram stain.
Diagnosis is confirmed by [[thoracentesis]]; frank pus may be aspirated from the pleural space. The pleural fluid typically has a low pH (<7.20), low glucose (<60 mg/dL), and contains infectious organisms. Therefore, the diagnosis relies on the presence of pus or organisms on gram stain.
A positive bacteria culture from pleural fluid is not needed to make diagnosis of empyema.<ref name="pmid3548615">{{cite journal| author=Mavroudis C, Ganzel BL, Cox SK, Polk HC| title=Experimental aerobic-anaerobic thoracic empyema in the guinea pig. | journal=Ann Thorac Surg | year= 1987 | volume= 43 | issue= 3 | pages= 298-302 | pmid=3548615 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=3548615  }} </ref><ref name="pmid27527890">{{cite journal| author=Perez VP, Caierão J, Fischer GB, Dias CA, d'Azevedo PA| title=Pleural effusion with negative culture: a challenge for pneumococcal diagnosis in children. | journal=Diagn Microbiol Infect Dis | year= 2016 | volume= 86 | issue= 2 | pages= 200-4 | pmid=27527890 | doi=10.1016/j.diagmicrobio.2016.07.022 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=27527890  }} </ref>


==References==
==References==

Revision as of 18:25, 3 January 2017

Empyema Microchapters

Patient Information

Overview

Classification

Subdural empyema
Pleural empyema

Differential Diagnosis

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Laboratory Findings

Diagnosis is confirmed by thoracentesis; frank pus may be aspirated from the pleural space. The pleural fluid typically has a low pH (<7.20), low glucose (<60 mg/dL), and contains infectious organisms. Therefore, the diagnosis relies on the presence of pus or organisms on gram stain.

A positive bacteria culture from pleural fluid is not needed to make diagnosis of empyema.[1][2]

References

  1. Mavroudis C, Ganzel BL, Cox SK, Polk HC (1987). "Experimental aerobic-anaerobic thoracic empyema in the guinea pig". Ann Thorac Surg. 43 (3): 298–302. PMID 3548615.
  2. Perez VP, Caierão J, Fischer GB, Dias CA, d'Azevedo PA (2016). "Pleural effusion with negative culture: a challenge for pneumococcal diagnosis in children". Diagn Microbiol Infect Dis. 86 (2): 200–4. doi:10.1016/j.diagmicrobio.2016.07.022. PMID 27527890.