. 2011 Apr 20;2011:bcr0220113843. doi: 10.1136/bcr.02.2011.3843

Table 1.

Diagnostic testing recommended for the evaluation of paediatric pulmonary hypertension

General lab work	Thromboembolic disease
	Hypercoagulability panels
	Thyroid disease
	TSH, free thyroxine
	Collagen vascular disease
	ANA screen with follow-up testing if positive
CBC	Rheumatoid factor
Electrolytes, BUN, creatinine	Rheumatoid factor
BNP and NT-proBNP	C3, C4
β-HCG	C3, C4
Uric acid	ESR, CRP
Cardiac studies	ESR, CRP
ECG	Portal hypertension
Echocardiogram	Portal hypertension
Cardiac catheterisation	Hepatic function panel
Lung disease	Hepatic function panel
Chest x-Ray	Hepatitis screen
Chest CT	Hepatitis screen
Pulmonary function tests	Abdominal/liver ultrasound
Ventilation/perfusion scan	Abdominal/liver ultrasound
Obstructive sleep apnea	Familial disease
Polysomnography	Familial disease
HIV infection, drugs, toxins	Genetic analysis for bone morphogenic protein receptor 2 mutations
HIV AB 1+2