Table 3.

Antibiotic outcomes for patients with repeat procalcitonin levels

	First PCT, μg/L	Second PCT, μg/L	COVID-19 swab	Antibiotic outcome following PCT
Patient 1	0.11 (15 April 2020)^*	0.15 (22 April 2020)^*	POS POS	1st PCT: Stopped <24hrs 2nd PCT: Continued
Patient 2	0.05 (17 April 2020)^*	0.17 (20 April 2020)^*	POS POS	1st PCT: Stopped <24hrs 2nd PCT: No antibiotics
Patient 3	0.02 (12 April 2020)^*	0.11 (26 April 2020)^*	NEG POS	1st PCT: Stopped <24hrs 2nd PCT: De-escalated
Patient 4	0.08 (12 April 2020)^*	0.08 (27 April 2020)^*	NEG NEG	1st PCT: No antibiotics 2nd PCT: Started + escalated
Patient 5	0.1 (16 April 2020)^*	0.1 (17 April 2020)^*	NEG NEG	1st PCT: No antibiotics 2nd PCT: No antibiotics
Patient 6	0.2 (23 April 2020)^*	0.25 (26 April 2020)^†	POS POS	1st PCT: No antibiotics 2nd PCT: Started + continued
Patient 7	0.11 (25 April 2020)^*	0.8 (26 April 2020)^‡	POS POS	1st PCT: De-escalated 2nd PCT: Continued
Patient 8	0.26 (17 April 2020)^†	0.21 (20 April 2020)^*	POS POS	1st PCT: Continued 2nd PCT: Stopped <24hrs
Patient 9	0.65 (18 April 2020)^‡	0.37 (22 April 2020)^†	POS POS	1st PCT: Continued 2nd PCT: De-escalated