Impedance pneumography is a commonly-used technique to monitor a perso

1.	Impedance pneumography is a commonly-used technique to monitor a person‚Äö√Ñ√∂‚àö√ë‚àö¬•s _______$
A.	respiration rate
B.	heart rate
C.	pulse rate
D.	skin impedance
Answer» B. heart rate

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