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Questions and Answers
What are Non-Protein Nitrogens?
What are Non-Protein Nitrogens?
- Substances that are considered as proteins but do not contain nitrogen
- Substances that are not considered as proteins, but contain nitrogen (correct)
- Substances that are not considered as proteins and do not contain nitrogen
- Substances that are considered as proteins and contain nitrogen
Which substance is the major organic component of urine?
Which substance is the major organic component of urine?
- Creatinine
- Ammonia
- Urea (correct)
- Uric acid
What is the molecular formula of urea?
What is the molecular formula of urea?
- C6H12O6
- NH3
- CO2
- H2N-CO-NH2 (correct)
Which Non-Protein Nitrogen accounts for almost 45% of the total NPNs in the body?
Which Non-Protein Nitrogen accounts for almost 45% of the total NPNs in the body?
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Which Non-Protein Nitrogen is often used to assess renal function?
Which Non-Protein Nitrogen is often used to assess renal function?
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Study Notes
Non-Protein Nitrogens
- Non-Protein Nitrogens (NPNs) refer to nitrogen-containing compounds in the body that are not part of proteins
- Examples of NPNs include urea, uric acid, creatine, and ammonia
Urine Composition
- Urea is the major organic component of urine
Urea Molecular Formula
- The molecular formula of urea is CO(NH2)2
Urea in Non-Protein Nitrogens
- Urea accounts for almost 45% of the total NPNs in the body
Assessing Renal Function
- Urea is often used to assess renal function
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