Tetralogy of fallot lab studies
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: : Fahimeh Shojaei, M.D.
Overview
Laboratory findings consistent with the diagnosis of tetralogy of fallot include diminished oxygen saturation, hematocrit between 65% to 70%, and low platelet count and coagulation factors.
Laboratory Findings
Laboratory findings consistent with the diagnosis of tetralogy of fallot include:[1][2]
- Hematocrit ranges from 65% to 70% in patients with tetralogy of Fallot
- Lower than normal coagulation factors, including lower than normal levels of fibrinogen
- Prolonged prothrombin time (PT)
References
- ↑ Branson, Herman E.; Schmer, Gottfried; Dillard, David H. (1977). “Fibrinogen Seattle: A Qualitatively Abnormal Fibrinogen in a Patient with Tetralogy of Fallot”. American Journal of Clinical Pathology. 67 (3): 236–240. doi:10.1093/ajcp/67.3.236. ISSN 0002-9173.
- ↑ Kumar C, Sharma D, Pandita A, Bhalerao S (2015). “Thrombocytopenia absent radius syndrome with Tetralogy of Fallot: a rare association”. Int Med Case Rep J. 8: 81–5. doi:10.2147/IMCRJ.S81770. PMC 4381885. PMID 25908903.
© 2026 MyEClinic – IFTM Institut für Telematik in der Medizin GmbH