Urinalysis is not a part of routine diagnostic and screening evaluations. Question 13Select one: a. True b. False
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QUESTION 10 Specificity refers to the ability of a screening test to identify only nondiseased individuals who actually do not have the disease. True False
Suman K.
Both a large hospital and its outpatient clinic have a laboratory area for the performance of routine urinalyses. Each laboratory performs daily QA checks on reagents, equipment, and procedures. Because the control material used does not have sediment components, each laboratory sends a completed urinalysis specimen to the other laboratory for testing. After the urinalysis has been performed, results are recorded, compared, and evaluated. The criterion for acceptability is that all parameters must agree within one grade. Results: One day, all results were acceptable except those of the microscopic examination, which follow: On investigation, the results from the clinic were found to be correct; the hospital had a problem, which was addressed and remedied immediately. 1. Which of the following conditions present in the hospital laboratory could cause the observed findings in this case? a) The urinalysis centrifuge had its brake left on. b) The urinalysis centrifuge was set for the wrong speed or time setting. c) Microscopic examination was performed on an unmixed or inadequately mixed specimen. d) Microscopic examination was performed using non-optimized microscope settings for urine sediment viewing (e.g., contrast was not sufficient to view low-refractile components) e) I, II, and III are correct. f) I and III are correct. g) II and IV are correct. h) IV is correct. i) All are correct. 2. Which of the following actions could prevent this from happening again? a) The microscope and centrifuge should be repaired. b) The laboratory should participate in a proficiency survey. c) A control material with sediment components should be used daily. d) All results should be reviewed by the urinalysis supervisor before they are reported. 3. Quality assessment done is a part of: a) pre-examination b) examination c) post-examination d) all of the above 4. The process of comparison for the 2 labs is: a) external QC b) internal QC c) proficiency testing d) none of the above 5. Choose what is TRUE and ACCEPTABLE a) Results of Physical tests and chemical tests will be released, BUT microscopic is withheld. b) NO results MUST be released, physical, chemical, and microscopic results will be released at the same time after the problem is resolved. c) Results of physical and chemical tests will be released, microscopic will follow after the problem is resolved. d) None of the above.
Md.Daniyal A.
B. Urinalysis For each of the urine samples in Table 37.6, indicate whether the urine is normal or abnormal. If abnormal, name the abnormality and indicate the probable cause. 4. Urine A 5. Urine B 6. Urine C 7. Urine D 8. Which urine has the (a) lowest concentration of solutes? (b) highest concentration of solutes? 9. Which urines are: (a) acidic? (b) basic? 10. Which specific gravity value is the most concentrated? Urine: __________ TABLE 37.6: Urinalysis Results MEASUREMENT URINE A URINE B URINE C URINE D Color Yellow Slightly yellow Amber Red Turbidity Clear Clear Clear Turbid pH 6.0 6.5 4.0 7.5 Specific gravity 1.01 1.001 1.04 1.02 Glucose Negative Positive Negative Negative Red blood cells Negative Negative Negative Positive White blood cells Negative Negative Negative Positive Albumin Negative Negative Negative Negative Ketone bodies Negative Positive Negative Negative Casts Negative Negative Positive Negative Calculi Negative Negative Positive Negative Microbes Negative Negative Negative Positive
Shaiju T.
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