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Blood Urea Test: Nursing Department First Stage

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Blood Urea Test: Nursing Department First Stage

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Questions and Answers

What does the BUN test measure?

Amount of urea nitrogen in blood (correct)

Platelet count

White blood cell count

Red blood cell count

What are some causes of high blood urea levels?

Regular exercise

Increased fluid intake

Dehydration, heart failure, and urinary tract infection (correct)

Low protein intake

Which of the following is a symptom of high urea content?

Increased energy levels

Decreased heart rate

Loss of appetite (correct)

Hair loss

How can blood urea levels be reduced?

Avoiding products with creatinine and consuming alkalizing foods like carrots Signup and view all the answers

What is the normal range of urea nitrogen in blood or serum?

$5$ to $20$ mg/dl Signup and view all the answers

Which factor can contribute to high blood urea levels?

Diet high in protein intake Signup and view all the answers

What is the purpose of adding distilled water in the test tube marked as Blank (B)?

To serve as a reference for background absorbance Signup and view all the answers

Why is it important to mix and incubate the contents of the test tubes for 5 minutes at 20-25 degrees Celsius?

To ensure proper dissolution of the reagents Signup and view all the answers

What role does Working Reagent (R1+R2) play in this procedure?

Aids in the biochemical reaction for BUN concentration estimation Signup and view all the answers

Why is it necessary to measure light absorbance at 546nm using a calorimeter?

To quantify BUN concentration in the serum sample Signup and view all the answers

What is the formula provided for calculating BUN concentration in grams per deciliter (g/dl)?

(Unknown Absorbance - Standard Absorbance) x 80 Signup and view all the answers