Flashcards in EFAST Deck (26):
1
EFAST should be done with a probe of a frequency
2-5 MHz
2
Which portion of the heart is closest to the liver in the subxiphoid view?
R atrium and right ventricle
3
In the parasternal long view, what parts of the heart are visualized?
Left atrium, left ventricle, right outflow tract, mitral valve, aortic valve, aortic outflow tract, descending aorta
4
In abdominal view, which direction is the probe marker pointed for parasternal long view?
Toward the left hip
5
In the PSL view, comet tails are caused by...
Air in the lung
6
A ... will not go anterior to the descending aorta and extend toward the AV groove
Pleural effusion
7
Both lef pleural fluid and pericardial fluid will go ... to the left ventricle.
Posterior
8
Epicardial fat pads will be ... on the heart and not extend... to the left ventricle
Anterior and not extend posterior
9
What is the volume threshold for detection of fluid in the abdomen?
250cc
10
Two most common sources of hemorrhage in the abdomen?
Spleen and liver
11
Perisplenic fluid is usually where?
Subphrenic
12
What are the layers around the liver called?
Glisson's capsule/Gerota's fascia
13
The perihepatic coronal window particularly subphrenic can show hemoperitoneum earlier because
Fluid will collect here prior to pooling in Morrison's pouch
14
Obtaining a transverse view of Morrison's pouch is helpful in detecting...
Small medial collections of fluid
15
How can hemoretroperitoneum be detected?
See it in the true capsule of the kidney
16
How will parenchymal injuries to the liver appear?
Hyperechoic
17
What is the curtain effect?
Air from the costoprhrenic angle blocks view of the spleen with inspiration.
18
What is the cause of perisplenic false positive on EFAST?
The enlarged left lobe of the liver looks like firee fluid as the lobe extends into view.
19
Comet tails (ring down) is evidence (for/against) pneumothorax.
Against
20
What are A-lines?
Reverberations from skin to pleural (supports pneumothorax diagnosis)
21
What sign is definitive for pneumothorax?
Lung point
22
What is a lung point?
Portion of non-lung sliding with lung sliding on either side
23
B-lines are also called
Comet tails or ring down
24
Lung rockets indicate
Interstitial syndrome. Large number of B-lines in rib spaces
25
Lung consolidation looks like... on ultrasound.
Spleen or liver but should also have ring down
26