A routine urinalysis was performed with a reagent strip specific gravity of 1.015. The specific gravity...
A routine urinalysis was performed with a reagent strip specific gravity of 1.015. The specific gravity was verified using a refractometer with a value of 1.020. What is the most likely explanation of this discrepancy?
| a. |
increased urea levels in the sample |
|
| b. |
increased protein in the sample |
|
| c. |
decreased glucose in the sample |
|
| d. |
decreased salt in the sample |
Homework Answers
ANSWER.
* Discrepancy in the specific gravity of urine sample is due to
b. Increased protein in the sample.
* Because reagent strips measure the specific gravity of urine by
measuring the iron concentration so substances present in the urine
should be ionize to measure by this method.
* If protein is present in the urine sample it will not ionize so refractometer
shows high value compared to reagent strip method which result in discrepancy
in the specific gravity of urine sample.
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