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| RA, RV and |
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| PA are |
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| enlarged |
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| Oxygenated |
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| blood |
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| returning |
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| from lungs |
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| can not |
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| enter LV |
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| Passes to
RA via |
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| ASD
(L R shunt) |
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| Oxygenated |
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| and |
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| deoxygenated |
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| blood enter PA |
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| Blood passes |
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| through PA |
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| lungs and |
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| into large |
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| PDA aorta |
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| to body |
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| Obstruction |
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| to return of |
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| blood from |
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| lungs CHF |
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| PDA |
| Hypoplastic
Left Heart Syndrome |
| Cyanotic |