Antibiotics in Patients With Acute Respiratory Tract Infection With Procalcitonin as Parameter

"A. attending physician includes patient with acute respiratory infection in study, indicates antibiotic prescription and collects procalcitonin-value. Waits for decision from laboratory either change of decision or retention of decision. In case of change decision: antibiotic is not recommended, patient shall not take antibiotic. In case of retention of decision: patient may take the antibiotic.~B. attending physician includes patient with acute respiratory infection in study, indicates NO antibiotic and collects procalcitonin-value. Waits for decision from laboratory either change of decision or retention of decision. In case of change decision: antibiotic is recommended, patient has to be informed about. In case of retention of decision: no change."