Zvichipesana nemamiriro ekuwedzera ekuziva nezvehutano hwepasirese, mudziyo wekurapa unotakurika — pulse oximeter — wakakurumidza kubuda sechinodiwa chitsva mumunda wehutano hwepamba. Nekurongeka kwayo kwepamusoro, kusununguka kwekushanda, uye mutengo unokwanisika, iyo pulse oximeter yave chishandiso chakakosha chekutarisa ...
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