top
English (United Kingdom)Español (spanish formal Internacional)

Social Share Buttons

Advertisement


Advertisement


18th Edition (August 5, 2011)


Home Criteria Pulmonary Light Criteria for Exudative Pleural Effusion


Advertisement


The content of this website is provided for general informational purposes only and is not a substitute professional medical advice

Light Criteria for Exudative Pleural Effusion Print E-mail
User Rating: / 57
PoorBest 
Written by G. Firman MD   
Thursday, 26 February 2009 10:27

 

Transudative and exudative pleural effusions are distinguished by measuring the lactate dehydrogenase (LDH) and protein levels in the pleural fluid. Exudative pleural effusions meet at least one of the following criteria, whereas transudative pleural effusions meet none:

 

1. pleural fluid protein/serum protein >0.5

2. pleural fluid LDH/serum LDH >0.6

3. pleural fluid LDH more than two-thirds normal upper limit for serum

 

The above criteria misidentify approximately 25% of transudates as exudates. If one or more of the exudative criteria are met and the patient is clinically thought to have a condition producing a transudative effusion, the difference between the albumin levels in the serum and the pleural fluid should be measured. If this gradient is greater than 12 g/L (1.2 g/dL), the exudative categorization by the above criteria can be ignored because almost all such patients have a transudative pleural effusion.

 

If a patient has an exudative pleural effusion, the following tests on the pleural fluid should be obtained: description of the fluid, glucose level, differential cell count, microbiologic studies, and cytology.

 

 

References:

  1. Light RW. Clinical practice. Pleural effusion. N Engl J Med. 2002 Jun 20;346(25):1971-7. [Medline]

Created: September 07, 2005


Related news items:
Newer news items:
Older news items:

Last Updated on Wednesday, 21 December 2011 07:50
 

Free Registry

Advertisement


Advertisement


Advertisement


Advertisement


Advertisement

HONcode

HONcode accreditation seal. We comply with the HONcode standard for health trust worthy information:
verify here

Site Last Modified

Tuesday 08 April 2014, 04:49


bottom

Copyright © MedicalCRITERIA.com 2005-2014. All Rights Reserved