Table 1.

Definition of Trend Indicators (arrows) displayed by Dexcom G5 and FreeStyle Libre as Defined in the Respective User Manuals (DG5: LBL013328 Rev 001; FL: ART28687-102 Rev. A 04/14)

	Associated glucose rate of change
Trend indicator(arrow)	DG5	FL
⬆⬆	Glucose rapidly rising >3 mg/dL each minute or >45 mg/dL in 15 min.	n.a.
⬆	Glucose rising 2–3 mg/dL each minute or up to 45 mg/dL in 15 min.	Glucose is rising quickly [>2 mg/(dL·min)]
⬈	Glucose slowly rising 1–2 mg/dL each minute or up to 30 mg/dL in 15 min.	Glucose is rising [between 1 and 2 mg/(dL·min)]
➔	Glucose is steady. Not increasing/decreasing >1 mg/(dL·min) or up to 15 mg/dL in 15 min.	Glucose is changing slowly [<1 mg/(dL·min)]
⬊	Glucose is slowly falling 1–2 mg/dL each minute or up to 30 mg/dL in 15 min.	Glucose is falling [between 1 and 2 mg/(dL·min)]
⬇	Glucose is falling 2–3 mg/dL each minute or up to 45 mg/dL in 15 min.	Glucose is falling quickly [>2 mg/(dL·min)]
⬇⬇	Glucose is rapidly falling >3 mg/dL each minute or >45 mg/dL in 15 min.	n.a.

DG5, Dexcom G5; FL, FreeStyle Libre; n.a., not applicable.