FASH exam for diagnosis of HIV/TB

Summary of the FASH exam as explained in the 

Ultrasound Podcast

 

FASH 1

       -RUQ:  Ascities, pleural effusion

FASH 2

      -LUQ:   Ascities, pleural effusion

FASH 3

      -Bladder:   Ascities behind bladder

FASH 4

        -SubX:   Pericardial Effusion

                       TB Pericardial effusion needs to be drained completely so they don’t develop fibrinous pericarditis.  Drain with indwelling catheter

FASH 5

       -Spleen Sweep view

                      Microabscesses liquiefied in spleen–also use high frequency probe

FASH 6

     -Liver Sweep view

                    Lowest yield, most difficult exam, lowest OR.

                   Stage lesions, initially hyper echoic progressing to micro then macro abscesses

FASH 7

        Start at aorta in transverse, scan down to bifurcation

            look for “hot grapes”   Lymph nodes are NOT subtle.

 

 

 

This exam is studied in the setting of very high prevalence of TB in the developed world, decreased prevalence will decrease PPV and increase NPV.  Making this a potential screening tool to determine isolation need in patients where this is suspected.  

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s