Deck 9: Collection and Processing of Urine Samples

Question 1

The same cleaning methods are needed for all urine specimen collection procedures.

Answer 1

False
The clean-catch method is used for urinalysis and cultures, but it is not necessary for many other urine specimen collection procedures.

Question 2

What needs to be included on the collection documentation (perhaps on the specimen label) for a 24-hour urine specimen that is not required for a clean-catch midstream collection?
Chapter 9: Collection and Processing of Urine Samples
Answer

Answer 2

The start and end time of the collection process.

Question 3

Examples of formed elements that may be found in a random urine specimen include:

A)Glucose
B)Sodium
C)Creatinine
D)Bacteria

Answer 3

D
Glucose, sodium, and creatinine are all chemicals dissolved in the urine, not formed elements.

Question 4

Refrigeration is the only means of preserving a urine specimen after collection.

Question 5

The instructions for collection of a 24-hour urine specimen may include:

A)"Discard the first morning void at the beginning of the collection period."
B)"Collect as much urine as possible for 24 hours, excluding times when it is inconvenient."
C)"Collect only 1 cup of urine each time you feel the urge to urinate."
D)"Collect only the first and last urine specimens in the 24-hour period."

Question 6

Which of these is not a method used to avoid unwanted changes to a random urine specimen after collection?

A)Testing the specimen immediately
B)Keeping the specimen at room temperature for 2 hours after collection
C)Refrigerating the specimen after collection
D)Adding a preservative to the specimen

Question 7

The distal urethra is:

A)The part of the urethra nearest the bladder
B)The part of the urethra that is closest to the outside of the body
C)The connection between the urethra and the bladder
D)The part of the urethra that can be visualized outside the body

Question 8

A urine specimen obtained from an indwelling catheter is appropriate for a urine culture.

Question 9

How are 2-hour postprandial urine specimens and those collected as part of a glucose tolerance test similar?

A)Both types of specimens are collected at specific time intervals.
B)Both types of specimens are used for glucose testing.
C)Neither type of specimen requires the clean-catch cleaning process before collection.
D)All of the above

Question 10

Which specimen type is used to check for bacterial infection of the prostate?

A)Prostatitis specimen
B)Suprapubic aspiration
C)Indwelling catheter
D)Intermittent catheter

Question 11

When preparing for a clean-catch urine specimen collection, how many moist wipes are used to clean the external area surrounding the urinary meatus?

A)One wipe
B)Two wipes
C)Three wipes
D)Four wipes

Question 12

A patient has just completed her office visit and was told to collect a 24-hour urine specimen for creatinine. Caitlin, the medical assistant, is asked to provide her with the appropriate container and instructions for the collection procedure. Caitlin explains that the patient needs to start the collection in the morning immediately after the first morning void. She tells the patient that she must collect all the urine for the next 24 hours, including the following morning void, as long as it is within the 24-hour period. She also tells the patient that she needs to document the time that she started and ended the collection on the urine container, and Caitlin added the name of the patient and her patient identification number to the container before she left.Did Caitlin provide adequate instructions to the patient? Is there anything that could have been added?

Question 13

Which of the following is not a common test performed on a 24-hour urine specimen?

A)Urine total protein
B)Urine creatinine
C)Catecholamines
D)Urine microscopic examination

Question 14

What is a catheter?

A)A hollow tube used to empty the urinary bladder
B)A collection bag placed on the outside of the body
C)A collection cup provided by the lab
D)None of the above

Question 15

Why is it important to use a sterile collection container for a clean-catch midstream urine collection?

A)Because a urine culture may need to be added to the specimen
B)Because it makes the collection process easier
C)Because the sterile container is larger than one that the patient may use at home
D)Because the sterile container is easier for the patient to obtain.

Question 16

Urine specimens do not need to be disposed of as biohazardous substances.Short Answer

Question 17

An elderly patient has come to the laboratory because her urine specimen was not acceptable for a urine culture due to excessive bacterial contamination. The medical assistant who is helping her asks the patient to explain how she prepares for the urine-collection procedure. The patient says that she "cleans herself up" and urinates into the container as best she can.What can the medical assistant say to the patient to help her understand how she can provide an acceptable urine specimen without excessive contamination?

Question 18

When starting the collection for a 24-hour urine specimen, the first morning void is discarded at the beginning of the collection.

Question 19

All 24-hour urine-collection tests require the same additives for preservation of the chemical elements present in the urine.