Echo Path 1 Chapter 4 Part 2

What is apart of the LAX RVIT protocol?

• CFD

• RV inflow pattern

• RV outflow pattern

• CWD of TV

What isn't true about the CFD in the LAX RVIT?

• RV, TV and RA

• TR

• LA, MV and LV

• up to 93% have trace to mild TR

What is true about the RV inflow tract of the LAX RVIT?

• up to 93% have trace to mild TR

• PWD and gate at tips of the TV leaflets

• Inflow and peak TRV

• RVSP/SPAP

What isn't CWD of TV (0.3-0.7 m/s) on the LAX RVIT protocol?

• Inflow

• Peak TRV

• RVSP/SPAP

• TR

What is the correct formula to acquire Peak TR V

• RA-RV PG (4V² )

• RA-RV PG (4V⁴ )

• RV-RA PG (4V² )

• RV-RA PG (4V⁴ )

What is the normal diameter of the IVC?

• 1-2 cm

• 1.2-2.1 cm

• 1.5-2.5 cm

• 2-3 cm

What is the percentage of the sniff test for the IVC inspiratory collapse?

• 25

• 50

• 75

• 100

True or False

To calculate the RVSP and assess PH severity:

RVSP/SPAP = 4( peak TRV)² + RAP

• True

• False

If the IVC diameter is <2.1 cm and the IVC Collapse is >50% what is the RAP estimate?

• 3 (normal)

• 15 (increased)

• 8 (intermediate)

If the IVC diameter is >2.1 cm and IVC collapse is <50% what is the RAP estimate?

• 3 (normal)

• 15 (increased)

• 8 (intermediate)