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19 bytes added ,  11:06, 3 November 2010
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===Pre-renal azotaemia===
 
===Pre-renal azotaemia===
 
This occurs when the kidney receives insufficient oxygen via blood flow to maintain its normal metabolic processes. Conditions that can cause this include:
 
This occurs when the kidney receives insufficient oxygen via blood flow to maintain its normal metabolic processes. Conditions that can cause this include:
*'''Dehydration/hypovolaemia''', reducing renal blood flow.
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*'''Dehydration/hypovolaemia''', which reduces renal blood flow.
*'''Heart failure''' results in a reduced cardiac output, reducing renal blood flow.
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*'''Heart failure''' which results in a reduced cardiac output, thereby reducing renal blood flow.
 
*'''Anaemia''' reduces the amount of oxygen delivered to the kidneys.
 
*'''Anaemia''' reduces the amount of oxygen delivered to the kidneys.
 
*'''Portal hypertension''' may result in splanchnic pooling of blood and reduced renal blood flow.
 
*'''Portal hypertension''' may result in splanchnic pooling of blood and reduced renal blood flow.
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