FAST Scan Flashcards

1
Q

What does FAST stand for

A

focused assessment with sonography for trauma

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2
Q

Advantages of FAST scans

A

quick
non-invasive
no radiation exposure

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3
Q

Disadvantages of FAST scans

A
User dependant
No additional information as you'd get with a CT
Can have false +ve and -ve
Doesn't evaluate solid viscera injuries 
artefact from free bowel gas and bones
can't exclude retroperitoneal bleed
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4
Q

What can cause a false +ve FAST scan result

A

heart failure
ascites
pregnancy
seminal vesicles (especially in younger men)

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5
Q

What can cause a false -ve FAST scan result

A

obesity
full bladder
subcutaneous emphysema

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6
Q

What additional view is seen with an eFAST scan and what is the purpose

A

anterior pleura

Can see lung sliding indicating a traumatic pneumothorax

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7
Q

What are some uses of USS

A

assessing for reversible causes of CA
Inserting lines and drains
early recognition of ROSC
PEA vs pseudo PEA

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8
Q

What are the 4 views seen on a FAST scan

A

pericardial
perisplenic
suprapubic
perihepatic

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9
Q

What is seen/assessed on a pericardial FAST scan view

A

pericardial effusions

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10
Q

What is seen/assessed on a perisplenic FAST scan view

A

splenorenal space
perisplenic space
left subphrenic space
left paracolic gutter

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11
Q

What is seen/assessed on a suprapubic FAST scan view

A

pouch of douglas

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12
Q

What is seen/assessed on a perihepatic FAST scan view

A

Morrisons pouch (hepatorenal space)
right subphrenic space
right paracolic gutter

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