Which one of the following is an abnormal constituent of urine ?

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Q: 40 (SSC/NA)

Which one of the following is an abnormal constituent of urine ?

question_subject: 

Science

question_exam: 

SSC

stats: 

0,4,5,1,1,3,4

keywords: 

{'uric acid': [4, 0, 0, 0], 'urine': [1, 0, 1, 2], 'creatinine': [3, 0, 0, 0], 'abnormal constituent': [2, 0, 0, 0], 'urea': [5, 1, 4, 10], 'ketone bodies': [1, 0, 0, 0]}

Option 1: Creatinine is a normal constituent of urine, as it is a waste product of muscle metabolism. It is filtered by the kidneys and excreted in urine.

Option 2: Urea is also a normal constituent of urine, as it is the end product of protein metabolism. It is produced in the liver and excreted by the kidneys.

Option 3: Uric acid is a normal constituent of urine, as it is the end product of purine metabolism. It is produced in the liver and excreted by the kidneys.

Option 4: Ketone bodies are not normally found in urine, as they are produced during abnormal metabolism of fatty acids. Presence of ketone bodies in urine may indicate a metabolic disorder, such as uncontrolled diabetes or starvation.

Therefore, the correct answer is option 4, as ketone bodies are an abnormal constituent of urine.