From: SARS-CoV-2 and pulmonary embolism: who stole the platelets?
4Ts pretest probability | Score | 4 |
---|---|---|
Thrombocytopenia | Platelet count fall > 50% and platelet nadir > 20 | 2 |
Timing of platelet count fall | Onset after day 10 of heparin exposure | 1 |
Thrombosis or other sequelae | No new thrombosis | 0 |
Other causes for thrombocytopenia | Possible other causes | 1 |