| PtcCO2 | transcutaneous partial pressure of carbon dioxide |
|---|---|
| PTT | partial thromboplastin time; particle transport time; posterior tibial tendon (transfer); prothrombi... |
| ptt | partial thromboplastin time |
| PVCO2 | partial pressure of carbon dioxide in mixed venous blood |
| PVO2 | partial oxygen pressure in mixed venous blood |