Arterial partial pressure of oxygen and procalcitonin levels correlate with pulmonary artery systolic pressure in patients with active pulmonary tuberculosis

•Pulmonary tuberculosis (PTB) can cause elevated pulmonary artery systolic pressure (PASP).•Studying what is correlated with PASP values in patients with active PTB.•Degree of hypoxia may influence PASP in active PTB.•Severity of secondary respiratory bacterial infection may influence PASP in active PTB.