Echo/Pocus Flashcards
If you suspect pneumonia in a patient, what might you see on TTE?
Dynamic air bronchogram
What does “spine sign” indicate?
Effusion/ PNA or PTX
How many B-lines are normal?
3 or less
What does lung pulse tell you?
It is normal = lung sliding with heart rate
What does lung point tell you?
PTX - it is the visceral pleura kissing the parietal pleura
What do TAPSE less than 17 indicate?
RV dysfunction
How could you calculate stroke volume on TTE?
Use pulse wave Doppler to calculate VTI using the area of LVOT and multiply by the heart rate
What is fractional area of change?
TEE measurement of RV and LV dysfunction
Preload dependent
What are the absolute contraindications to placing a TEE?
Zenker’s
Active GI bleed
Esophageal tumors or stricture
What TEE views would you use for assessing for wall motion abnormalities?
Mid esophageal 5 chamber view
Mid esophageal 4 chamber view
Transgastric mid-short axis view
What view would you want to assess for saddle pulmonary embolism?
Mid esophageal ascending aortic short axis
At what degree is the mid-esophageal four chamber at?
0 degrees
How do you get a mid esophageal 2 chamber view?
By rotating the omniplane by 90 degrees from the mid esophageal 4 chamber
Where is the anterolateral wall of the LV in the mid esophageal 2 chamber?
On the right of the screen
Where is the inferior wall of the LV on midesophageal 2 C?
Left side
What can be seen with midesophageal long axis view?
Can see the LA, MV, LV, aortic root and LVOT+ sliver of RV
Aortic valve is in long axis
USED TO CALCULATE LVOT Cross sectional area and thus AVA and CO
Can see SAM in this view
At what degree is the midesophageal long axis at?
120-160
What is the midesophageal ascending aortic short axis view good for?
Positioning a PAC in the main PA
What can be seen on the midesophageal ascending aortic short axis view?
SVC
Aorta
Right and main PA
What omniplane angle is a midesophageal ascending aortic short axis at?
0-60 degrees
20-30 cm depth
What omniplane angle is a midesophageal ascending aortic long axis at?
100-150
30-40 cm depth
What is the midesophageal aortic valve short axis used for?
Assessing AI and AS
What can be seen on the midesophageal aortic valve Sax view?
RA, RVOT, tricuspid and pulmonic valve
Aortic valve in short axis
LA
What is the midesophageal RVOT useful for?
Placing PA Cathetr since path from RA to RV to Pa can be viewed in continuity