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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

What are the other causes of absent lung sliding?

look this up!