| RV | Right ventricle |
| HST | Hypoxic simulation testing |
| TTE | Transthoracic echocardiography |
| RVSP | Right ventricular systolic pressure |
| TAPSE | Tricuspid annular plane systolic excursion |
| PFO | Patent foramen ovale |
| FiO2 | Fraction of inhaled oxygen |
| S wave | Lateral tricuspid annulus during systole |
| ASE | American Society of Echocardiography |
| SD | Standard deviations |
| P25-P75 | The 25th and 75th percentiles |
| LVEF | Left ventricle ejection fraction |
| HAPE | High-altitude pulmonary edema |
| TEE | transesophageal echocardiography |
| TCD | transcranial Doppler |
| CMR | cardiac magnetic resonance |
| V/Q | ventilation-perfusion |
| SVC | Superior vena cava |
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.