How is total urinary nitrogen (TUN) estimated from urinary urea nitrogen (UUN)? A) UUN is subtracted from total dietary nitrogen intake B) UUN is multiplied by 1.5 to account for p... How is total urinary nitrogen (TUN) estimated from urinary urea nitrogen (UUN)? A) UUN is subtracted from total dietary nitrogen intake B) UUN is multiplied by 1.5 to account for protein loss C) UUN values are multiplied by 1.25 to correct for non-urea nitrogen D) UUN is divided by 2 to estimate TUN accurately
Understand the Problem
The question is asking about the method of estimating total urinary nitrogen (TUN) using urinary urea nitrogen (UUN). It presents multiple-choice options indicating different possible calculations or corrections related to TUN and UUN.
Answer
UUN values are multiplied by 1.25 to correct for non-urea nitrogen.
The final answer is C) UUN values are multiplied by 1.25 to correct for non-urea nitrogen
Answer for screen readers
The final answer is C) UUN values are multiplied by 1.25 to correct for non-urea nitrogen
More Information
Urinary Urea Nitrogen (UUN) constitutes a major portion of Total Urinary Nitrogen (TUN), but not all of it. The multiplication by 1.25 adjusts for other nitrogenous waste products that are not urea nitrogen.
Sources
- UUN values are multiplied by 1.25 - Example Source - pubmed.ncbi.nlm.nih.gov
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