2 URINE AND BODY FLUID ANALYSIS AUTOMATION

Question 1

The principle commonly used to measure the concentration of a particular analyte in the chemical examination of urine is:
A. Reflectance photometry
B. Digital imaging
C. Flow cytometry
D. Auto particle recognition

Answer 1

A. Reflectance photometry

Question 2

In automated urinalysis, the specific gravity is measured by:
A. Light transmittance
B. Light scattering
C. Refractometry
D. Turbidity

Answer 2

C. Refractometry

Question 3

All of the following are true concerning fully automated urine chemistry analyzers, except:
A. They are designed for a high-volume urinalysis laboratory.
B. The reagent strip is dipped into the well-mixed urine.
C. The urine tube moves through the instrument.
D. A sample probe aspirates the urine.

Answer 3

B. The reagent strip is dipped into the well-mixed urine.

Question 4

The advantages of an automated urine microscopy analyzer over manual microscopy includes:
A. Cost-effective
B. Centrifugation not required
C. Standardized results
D. All of the above

Answer 4

D. All of the above

Question 5

Which of the following is a complete urinalysis automated urinalysis system?
A. AUTION ELEVEN AE 4022
B. Clinitek Atlas
C. iQ200 Automated Urine Microscopy
D. Clinitek AUWi Pro System

Answer 5

D. Clinitek AUWi Pro System

Question 6

What two technologies are used for urine sediment analysis?
A. Light scattering and refractometry
B. Light scattering and flow cytometry
C. Flow cytometry and digital imaging
D. Digital imaging and refractometry

Answer 6

C. Flow cytometry and digital imaging

Question 7

Which automated urine particle counter combines urine flow cytometry with digital image analysis?
A. UN-2000
B. iRICELL
C. UF-1000i
D. iQ 200

Answer 7

A. UN-2000

Question 8

Which of the following urine sediment particles cannot be autovalidated but will be flagged and must be reviewed by laboratory personnel?
A. RBCs
B. WBCs
C. RTEs
D. Squamous epithelial cells

Answer 8

C. RTEs

Question 9

Which of the automated body fluid analyzers does not need to dilute or pretreat body fluids before analysis?
A. ADVIA 2120i
B. XN Series
C. iQ 200
D. None of the above

Answer 9

B. XN Series

Question 10

What is a disadvantage of counting body fluid cells using an automated instrument versus a Neubauer hemocytometer?
A. Less labor-intensive and time-consuming
B. More precise
C. Unable to count low WBC numbers and malignant cells
D. Able to perform a WBC differential

Answer 10

C. Unable to count low WBC numbers and malignant cells