Background The prevalence of invasive pulmonary aspergillosis (IPA) among patients with
chronic obstructive pulmonary disease (COPD) is steadily increasing, leading to high …

OBJECTIVES: Procalcitonin (PCT) was approved by the Food and Drug Administration in
2016. We assessed changes in PCT utilization over time in emergency departments (EDs) at …

Background The role of serum Procalcitonin (PCT) in adults in diagnosis of Community
acquired pneumonia (CAP) is well established, however, role in pediatric CAP remains …

Background: The COVID-19 pandemic began in early 2021 and placed significant strains on
health care systems worldwide. There remains a compelling need to analyze factors that are …

Objectives Many biomarkers have been studied to assist in the risk stratification and
prognostication of patients infected with severe acute respiratory syndrome coronavirus 2 …

Highlights Procalcitonin has low sensitivity for bacterial pneumonia at emergency
admission. Procalcitonin has low specificity for bacterial pneumonia at emergency …

Lower respiratory tract infections (LRTIs) are the leading cause of death in developing
countries and account for more than 4 million deaths per year worldwide. 1 They result in the …

Emerg Med Clin N Am 42 (2024) 443–459 https://doi. org/10.1016/j. emc. 2024.02. 003
emed. theclinics. com 0733-8627/24/© 2024 Elsevier Inc. All rights reserved. resistance; …

Background Lower respiratory tract infections (LRTIs) are among the most frequent
infections and a significant contributor to inappropriate antibiotic prescription. Currently, no …

Background This study aimed to investigate the usefulness of inflammatory biomarkers such
as white blood cell (WBC) count, C-reactive protein (CRP) and procalcitonin (PCT) for …