7/11/2010

ICU: Monitor - Differential Cyanosis

Scenario 1:
6-hours old, term baby girl. 3.4 kg. Transferred from outside hospital for cyanosis noted at 2 hrs of age.
Oxygen saturation:
Preductal 100%
Postductal 81%





Scenaio 2:


17 day old baby, born at home


Admitted via ER for cyanosis and respiratory distress.


Following is the monitor image:


"Reverse" Differential cyanosis is noted


Preductal saturation 87%


Postductal saturation 96%


What is the differential diagnosis?

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