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Pre ductal and post ductal circulation...the practical things


Pre-ductal and post-ductal pulse O2 saturation (SpO2) monitors (to detect R → L

shunting at ductus arteriosus). A difference of ≥10% suggests marked pulmonary
hypertension or PDA dependent leison.
Pre-ductal and post-ductal pulse O2 saturation (SpO2) can be used as screening for cyanotic heart disease for NB befor discharge hom fro postnatal ward.
For preductal circulation usually the spo2 probe applied right hand ,however recent studies showd the left UE can be used for preductal circulation assessement.
The post ductal circulation applied at at lower extremities.


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  1. AnonymousNovember 20, 2013 at 6:49 PM

    but why the right finger for pre ductal monitoring though? I understand blood from the brachiocephalic artery feeds the RUE.. but what's wrong with left?

    ReplyDelete

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