5 Questions
Creatinine is an end product of creatine and depends on muscle mass.
True
Elevation in urea can indicate pre renal, renal, and post renal conditions.
True
In pre renal azotemia, urea levels are high and creatinine levels are also high.
False
Blood examination is done to measure substances that are normally excreted by urine.
True
An increase in serum creatinine is seen with renal disorders, low protein diet, and very small muscle mass.
False
Study Notes
Blood Examination
- Measures substances normally excreted by urine, serving as markers
- Markers include:
- Urea
- Creatinine
- Uric acid
- Electrolytes
Creatinine
- End product of creatine
- Directly related to muscle mass
- Elevated serum creatinine levels are seen in:
- Renal disorders
- High protein diet
- Very large muscle mass
Blood Urea
- End product of protein produced by the liver
- Filtered freely by glomeruli
- Elevation in urea levels can be due to:
- Pre-renal causes
- Renal causes
- Post-renal causes
- Urea and creatinine levels are used to differentiate between pre-renal and post-renal azotemia
- Pre-renal azotemia characterized by:
- High urea levels
- Normal creatinine levels
A quiz on blood examination, focusing on urea and creatinine as markers in measuring substances normally excreted by urine, and their relation to renal disorders and protein intake.
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