Question
Instrument shown in the photograph is used for estimation of ?
A. Hemoglobin.
B. Serum bilirubin.
C. Blood glucose.
D. Urine specific gravity.
Show Answer
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Correct Answer » C Explanation |
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Ans:C. Glucometer.
Instrument shown in the photograph above represents Glucometer with Strips, which is used for estimation of Blood glucose.
Glucose meter (or glucometer)
- It is a medical device for determining the approximate concentration of glucose in the blood.
- Most glucose meters, are based on electrochemical technology, they use electrochemical test strips to perform the measurement.
- A small drop of the solution to be tested, is placed on a disposable test strip, that the glucose meter uses for the glucose measurement.
- In each test strip, there is an enzyme called glucose oxidase. This enzyme reacts with the glucose, in the blood sample and creates an acid called gluconic acid.
- The gluconic acid then reacts, with another chemical in the testing strip called ferricyanide. The ferricyanide and the gluconic acid, then combine to create ferrocyanide.
- Once ferrocyanide has been created, the device runs an electronic current through the blood sample on the strip.
- This current is then able to read, the ferrocyanide and determine how much glucose is in the sample of blood, on the testing strip.