Table 3. Modality.
| Modality | POTS | IST | OH | VVS | CSS | HTN | Chronotropic insufficiency |
| HUT | X | X | X | X | |||
| CSM | X | ||||||
| 24-h-ECG | X | X | X | ||||
| 24-h-ABPM | X | X | (X) | X | |||
| ILR | X | X | X |
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.