- pregnancy or breastfeeding; - patients with a history of cancer, chemotherapy in the past 2 years; - life expectancy less than 6 months or in exclusive palliative care; - severe liver failure, with child-pugh score> 12; - high probability of death in the following 48 h; - previous renal failure: patients who were already on dialysis or patients with rfg <30ml / min / 1.73 m2; - clinical or radiological suspicion of tuberculosis and bacterial pneumonia.

- pregnancy or breastfeeding; - patients with a history of cancer, chemotherapy in the past 2 years; - life expectancy less than 6 months or in exclusive palliative care; - severe liver failure, with child-pugh score> 12; - high probability of death in the following 48 h; - previous renal failure: patients who were already on dialysis or patients with rfg <30ml / min / 1.73 m2; - clinical or radiological suspicion of tuberculosis and bacterial pneumonia.