carbon dioxide (CO2)

hyper/capnia-excessive CO2

smell

an/osmia-without a sense of smell

voice

dys/phonia-bad or impaired voice quality

breathing

a/pnea-not breathing

spitting

hem/o/ptysis-spitting (or coughing up) blood

chest

py/o/thorax-pus in the chest cavity; also called empyema

slow

brady/pnea-slow breathing

bad; painful; difficult

dys/pnea-difficult breathing

good, normal

eu/pnea-normal breathing

rapid

tachy/pnea-rapid breathing