Fig. 2From: How and when to use common biomarkers in community-acquired pneumoniaAntibiotic stewardship based on procalcitonin (PCT) cut-off ranges. Re-evaluation of the clinical status and measurement of serum PCT levels is mandatory after 6–24 h in all persistently sick and hospitalized patients in who antibiotic are withheld. PCT, procalcitonin; ICU, intensive care unit. Adapted from [16]Back to article page