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.
Changes in PetCO2 (top) and minute ventilation (bottom) during upright tilt. PetCO2 was decreased in all subjects but most markedly in POTSHC patients. This was associated with enhanced minute ventilation in these same subjects. *P < 0.05 compared with control.
