Imota inoongorora kurova kwemoyo kwemwana ari mudumbu inoshandisa Doppler effect. Heino maitiro:
### Mashandisirwo1. ** Kugadzirira ** : Usati washandisa, isa chinhu chinobatanidza pamusoro pechinongedzo chekubatanidza matayi kuti uwedzere simba rekugadzira ultrasonic conduction. Tarisa kana mudziyo wacho wakazara chaji.2. ** Tsvaga nzvimbo yemoyo wemwana ari mudumbu **: ane mavhiki angangoita 16-20 ekuzvitakura, moyo wemwana uri pedyo nepakati peguvhu; Mushure memavhiki makumi maviri ekuzvitakura, unogona kutsvaga zvichienderana nenzvimbo yemwana ari mudumbu, nzvimbo yemusoro iri kumativi ese ari pasi peguvhu, uye nzvimbo yekuberekesa iri kumativi ese ari pamusoro peguvhu. Vakadzi vane pamuviri vanorara nemusana, vozorodza dumbu ravo, uye vanofambisa zvishoma nezvishoma probe iri munzvimbo inoenderana kuti vaongorore.3. ** Rekodhi yekuyera ** : Paunonzwa ruzha rwe "plop" rwakafanana nekufamba kwechitima, irwo ruzha rwemoyo wemwana ari mudumbu. Panguva ino, sikirini icharatidza kukosha kwekurova kwemoyo wemwana ari mudumbu uye ichanyora mhedzisiro yacho.
### Nzvimbo dzekutarisira1. ** Kuchenesa ** : Pukuta pombi nemuviri nejira rakaoma rakapfava mushure mekushandisa kuti nzvimbo yacho igare yakachena. Kana paine mavara, pukuta mudziyo nemvura shoma yakachena. Usanyike mudziyo mumvura.2. ** Kuchengetera ** : Isa munzvimbo ine gasi rakaoma, rinotonhorera, risingaparare, dzivirira zuva rakananga uye kupisa kwakanyanya. Kana bhatiri risingashandiswe kwenguva yakareba, rinofanira kubviswa.3. ** Kuongorora nguva nenguva ** : Tarisa nguva nenguva kana chitarisiko chemudziyo chakakuvara uye kana tambo yakakuvara kuti uve nechokwadi chekushandiswa kwakajairika.
### Yakakodzera vanhu nemasitepisi- ** Huwandu hwevanhu hunoshanda ** : hunonyanya kushanda kuvakadzi vane pamuviri, kunyanya avo vane nhoroondo yekuzvitakura zvisina kunaka, vane matambudziko ekuzvitakura (akadai sechirwere cheshuga chepamuviri, BP yepamuviri, nezvimwewo) kana kuti vanonetseka mupfungwa nezvehutano hwemwana ari mudumbu uye vanoda kuziva kurova kwemoyo wemwana ari mudumbu chero nguva.- ** Danho rekushandisa **: Kazhinji mavhiki gumi nemaviri epamuviri anogona kutanga kushandiswa, sezvo vhiki yekuzvitakura ichiwedzera, kurova kwemoyo kwemwana ari mudumbu kunova nyore kutarisa. Inogona kushandiswa panguva yese yekuzvitakura kutarisa kurova kwemoyo kwemwana ari mudumbu, asi trimester yechitatu (mushure memavhiki makumi maviri nemasere) inokosha zvikuru kubatsira kunzwisisa kuchengetedzeka kwemwana ari mudumbu.