Pulmonary hypertension laboratory tests
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Assistant Editor(s)-in-Chief: Ralph Matar,
Overview
Laboratory Findings
- Biochemistry,hematology and Thyroid function tests are required in all patients with pulmonary hypertension.(Important for diagnosis of chronic hemolytic anemia, myeloproliferative disorders, thyroid disorders and chronic renal failure on dialysis).
- Serologic testing to detect Connective tissue diseases(systemic sclerosis), HIV and Hepatitis.
Systemic sclerosis is very important to exclude in pulmonary hypertension because this systemic disease has a very high prevalence of pulmonary arterial hypertension. Anti-Scl-70, anti-centromere, and U3-RNP are typically positive.
- Liver function tests to exclude portal hypertension.
- Both ANP and BNP have been shown to correlate with the survival in Idiopathic Pulmonary Hypertension. However NT-proBNP appears to be an independent predictor of survival and correlates with RV dysfunction.
- Serum uric acid: reflects impaired oxidative metabolism of ischemic peripheral tissues..