Chapter 189 - TFAST & AFAST in the ICU Flashcards Preview

Silverstein & Hopper (+ West) > Chapter 189 - TFAST & AFAST in the ICU > Flashcards

Flashcards in Chapter 189 - TFAST & AFAST in the ICU Deck (15)
Loading flashcards...
1
Q

Suggested order of assessing AFAST sites

A

subxiphoid view first to identify the gallbladder and adjust gain setting, then any order

2
Q

list AFAST sites

A
subxiphoid (diaphragmaticohepatic)
left flank (splenorenal)
right flank (hepatorenal)
midline bladder (cystocolic)
3
Q

how does patient position affect the AFS

A

unknown - either lateral can be used

4
Q

possible causes of abdominal FF following trauma

A

hemorrhage > urinary tract rupture, biliary tract rupture, ruptured hollow viscus

5
Q

two most common sites of intraperitoneal haemorrhage in small animals following blunt trauma

A

splenic, hepatic injury

6
Q

sensitivity of FAST in retroperitoneal injury

A

low - suggest CT

7
Q

sensitivity and specificity of TFAST to detect pneumothorax

A

sens 78%, spec 93%

8
Q

differentials with loss of glide sign

A

pneumothorax, ARDS, pulmonary fibrosis, large consolidations, pleural adhesions, atelectasis, right mainstem bronchus intubation, phrenic nerve paralysis

9
Q

list TFAST sites

A

CTS bilat (dorsal third, widest point if lateral, 7-9th intercostal), PCS (5-6th intercostal over heart), subxiphoid AFAST site

10
Q

what does the bat sign represent

A

view of two ribs and intercostal window - white articorm outline of the ribs = the wings, white hypo echoic pleural line = the body. can be seen normally and with pleural space disease

11
Q

what are A lines?

A

reverberation line from soft tissue-air interface at the level of the pleural line - horizontal lines of decreasing echogenicity similar to and equidistant from pleural line 0 seen in patients with and without pneumothorax

12
Q

what are B lines?

A

a type of comet tail artifact originating from the visceral pleura, pass through the A lines without fading and move synchronously with glide sign - excessive B-lines = interstitial-alveolar lung disease

13
Q

what is B pattern

A

numerous B lines adjacent to each other, aka ultrasound lung rockets

14
Q

what is the lung curtain

A

movement of the lungs at the costophrenic angles - vertical sliding artefact similar to opening and closing of a theater curtain, not to be confused with the glide sign - move probe dorsally

15
Q

what are the ultrasonographic signs of pneumothorax?

A

strongly suspected if there is absence of glide signs and B lines, definitively compared with the lung point is seen - point at which the glide sign returns

Decks in Silverstein & Hopper (+ West) Class (84):