PEE-ak Performace
URINE-Trouble
Real WHIZ
Final Jeopardy
100
It takes how much time for the LE reaction to occur
What is 2 minutes
100
Manufacturers recommend this for the quantitation of leukocytes
What is microscopic examination
100
Reference interval for leukocytes
What is 0-2 or 0-5 hpf
200
The LE test is recorded as
What are negative, trace, small (+), moderate (++) or large (+++)
200
Strong oxidizing agents, formalin, highly pigmented urine and nitrofurantoin
What are causes of a false positive test
200
Confirmatory tests
What are protein, nitrate, and a microscopic exam
300
Does not measure the concentration of leukocytes
What is a disadvantage of the LE test
300
Detects the presence of leukocytes that have been lysed, particularly in a dilute alkaline urine
What is an advantage of the LE test
300
Produces leukocyturia without bacteriuria
What are trichomonas, chlamydia, yeast, and interstitial nephritis
400
A chemical test for leukocytes that offers a more standarized means for the detection of leukocytes
What is the principle of the LE test
400
High concentrations of protein, glucose, oxalic acid, ascorbic acid, gentamicin, cephalosporins, tetracyclines, and inaccurate timing
What are causes of a false negative test
400
Bacterial and nonbacterial UTI, inflammation of the urinary tract, screening of urine culture specimens
What is the clinical significance of urine leukocytes
500
Name this chemical reaction :
What is the chemical reaction of the LE test
500
The LE test can detect the presence of esterase in these granulocytic WBCs
What are neutrophils, eosinophils and basophils
500
Women have higher numbers on the LE test because of this
What is vaginal contamination
500
The LE test contributes significantly more to the reliability of a screening test on urine cultures than this test
What is the nitrite test