Design of a Remote Real-Time Monitoring System for Multiple Physiological Parameters Based on Smartphone

Table 2

Threshold values of monitoring parameters.

Parameter	Rhythm/pathology	Threshold values
SpO2 (%)	Normal	96 to 99
	Pulmonary or cardiovascular chronic diseases	Drop rapidly
	Acute respiratory failure	<90% + 3 to 4%
RR (breaths per minute (bpm))	Normal	12–16
	Cardiac arrest	≥27
	Lower respiratory tract infections	>24
	Tachypnea	>12–16
	Bradypnea	<12–16
Temperature (°C)	Normothermia or euthermia	37.0
	Fever	≥37.8
	Hypothermia	≤35.0
HR (beats per minute (bpm))	Normal	60 to 100
	Bradycardia	<60
	Tachycardia	>100