Table 3. Echocardiographic criteria for detecting pulmonary hypertension (PH) based on peak tricuspid regurgitation velocity (TRV) and presence of echocardiographic signs of PH.

TRV, m/s	Estimated SPAP*, mmHg	Presence of echo signs of PH	PH
≤ 2.8	≤ 36	No	Unlikely
≤ 2.8	≤ 36	Yes	Possible
2.9-3.4	37-50	No	Possible
> 3.4	> 50	Yes/No	Likely

* Assuming right atrial pressure of 5 mmHg.

SPAP, systolic pulmonary artery pressure.