Policies and Practices
A nursing assistant needs to collect a urine sample from her patient. When she hands the specimen container to the patient, the patient touches the inside of the container. What should the nursing assistant do?
Get another container, because this container has been contaminated
How should a 24-hour specimen container be stored?
In a refrigerated area
Why must the urine of a patient with stones be strained?
To catch stones so that they may be sent to the laboratory
From where in the stool should a sample be taken?
The middle
What is the mixture of specimen and saline called?
What type of tests may assistants perform?
CLIA-waived test
How much urine should be collected during an adult clean-catch urine procedure?
30 to 60 mL
In which case would a pregnancy test give a negative result even if the patient is indeed pregnant?
The level of hCG in the urine is too low
1 What might the presence of occult blood in stools indicate?
Colon cancer
What is mucus that forms in the bronchial tubes during a respiratory infection?
What is a specimen?
A sample that represents a whole.
Most 24-hour specimen containers contain ____ to keep the urine from developing microorganisms.
preservatives
Cloudy urine may indicate the presence of ____.
pus or mucus
What is occult blood?
Microscopic blood from the intestinal tract
What is the gelatin-like substance that is used to grow microorganisms in a culture?
Agar
How does CLIA rank tests?
According to the risk factors of incorrect results
Why are routine urine specimens often collected from the first void of the day?
The first void of the day is the most concentrated
When can hCG first be detected in the urine of pregnant women?
6 to 12 days following conception
Approximately how much stool should be placed in a specimen container?
2 tablespoons
After completing the Gram's stain, what color should Gram-negative bacteria be?
What item is used to keep a specimen container from spilling during storage or transporting?
Biohazard transport bag
When should a 24-hour urine specimen begin?
Second void of the day
Which type of urinalysis is NOT CLIA-waived?
Which test is used to detect blood in stools?
Hemoccult
When is acid-fast staining used?
When the microorganisms are resistant to Gram’s stain