Urine Composition and Volume
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Questions and Answers

What is the approximate percentage of water in urine?

  • 98%
  • 90%
  • 99%
  • 95% (correct)

What is the primary factor that determines urine volume?

  • The amount of urea in the body
  • The amount of water that the kidneys excrete (correct)
  • The amount of salt in the diet
  • The amount of glucose in the blood

What is the normal range of daily urine output?

  • 800-2500 mL
  • 600-2000 mL (correct)
  • 400-1000 mL
  • 1000-3000 mL

Why is it important to wear gloves when handling urine specimens?

<p>To reduce the risk of infection (C)</p> Signup and view all the answers

What information should be included on the label of a urine specimen?

<p>Patient's name, identification number, date and time of collection, and additional information as required (B)</p> Signup and view all the answers

What should accompany specimens delivered to the laboratory?

<p>A requisition form (D)</p> Signup and view all the answers

What is the recommended capacity of the container for specimen collection?

<p>50mL (B)</p> Signup and view all the answers

What is the primary concern for delivering specimens to the laboratory?

<p>Delivering the specimen within 2 hours (A)</p> Signup and view all the answers

What is the most commonly used method of preservation for specimens?

<p>Refrigeration (D)</p> Signup and view all the answers

What should be done with a specimen that cannot be delivered and tested within 2 hours?

<p>Refrigerate the specimen (B)</p> Signup and view all the answers

Why are disposable containers recommended for specimen collection?

<p>They reduce the risk of contamination (C)</p> Signup and view all the answers

What is the primary reason for rejecting a specimen?

<p>The specimen is contaminated with feces or toilet paper (A)</p> Signup and view all the answers

What is the term used to describe the transparency or turbidity of a urine specimen?

<p>Clarity (D)</p> Signup and view all the answers

What is the characteristic of the odor of freshly voided urine?

<p>Faint and aromatic (C)</p> Signup and view all the answers

What is the purpose of using a clear container to view a urine specimen?

<p>To evaluate the clarity of the urine (D)</p> Signup and view all the answers

What is the reason for storing reagent strips with a desiccant?

<p>To prevent moisture from affecting the strips (A)</p> Signup and view all the answers

What is the typical temperature range for storing reagent strips?

<p>Below 30 degrees Celsius (C)</p> Signup and view all the answers

What is the result of a color-producing chemical reaction on a reagent strip?

<p>A change in the color of the urine (A)</p> Signup and view all the answers

What is the pigment responsible for the yellow color of urine?

<p>Urochrome (C)</p> Signup and view all the answers

Why is it important to examine the urine specimen under a good light source?

<p>To accurately determine the color of the urine (A)</p> Signup and view all the answers

What is the normal color range of urine?

<p>Pale yellow to amber (D)</p> Signup and view all the answers

What is the possible cause of yellow-orange colored urine?

<p>Administration of phenazopyridine or azo-gantrisin compounds (B)</p> Signup and view all the answers

What is the possible cause of brown or black urine?

<p>Presence of melanin or homogentisic acid (B)</p> Signup and view all the answers

What is the possible cause of blue or green colored urine?

<p>Bacterial infections, including Pseudomonas species (B)</p> Signup and view all the answers

What is the method of interpreting the reactions in urine analysis?

<p>By comparing the color produced on the pad with a chart supplied by the manufacturer (A)</p> Signup and view all the answers

What is the purpose of checking pH levels in urine analysis?

<p>To aid in determining the existence of systemic acid-base disorders (B)</p> Signup and view all the answers

What is a common indicator of renal disease in urine analysis?

<p>Abnormal protein levels (C)</p> Signup and view all the answers

What is a precaution to be taken when using reagent strips?

<p>Remove the strips immediately prior to use (B)</p> Signup and view all the answers

How often should reagent strips be checked with positive and negative controls?

<p>At least once every 24 hours (D)</p> Signup and view all the answers

What should you do if the chemical pads become discolored?

<p>Do not use the pads (A)</p> Signup and view all the answers

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