WorksheetsCM-7
Total questions: 150
Worksheet time: 1hrs 15mins
Name
Class
Date
1.
Automated reagent strip readers operate on which principle?
a)
A. Absorbance spectrophotometry
b)
B. Reflectance photometry
c)
C. Fluorometry
d)
D. Nephelometry
2.
In reflectance photometry, the amount of light reflected from the test pad is:
a)
Directly proportional to color intensity
b)
Inversely proportional to color intensity
c)
Unaffected by color intensity
d)
Only dependent on pad size
3.
According to the principle of reflectance photometry, the darker the color of the reagent pad:
a)
A. The greater the light reflection
b)
B. The lesser the light reflection
c)
C. Either
d)
D. Neither
4.
Specific gravity is a measure of:
a)
A. Hydrogen ion concentration in urine
b)
B. Amount of dissolved substances in a solution
c)
C. Turbidity of urine
d)
D. Color intensity of urine
5.
Specific gravity compares the density of urine to the density of:
a)
Plasma
b)
Serum
c)
Distilled water
d)
Standard saline
6.
The specific gravity of a random urine sample normally ranges from:
a)
1.001 – 1.010
b)
1.003 – 1.035
c)
1.016 – 1.022
d)
1.020 – 1.040
7.
The reference range for specific gravity in 24-hour urine is:
a)
1.001 – 1.010
b)
1.003 – 1.035
c)
1.016 – 1.022
d)
1.020 – 1.040
8.
The first morning urine should have a specific gravity of at least:
a)
1.003
b)
1.010
c)
1.020
d)
1.030
9.
If the specific gravity is below 1.003, it usually indicates that:
a)
There is proteinuria
b)
There is something wrong with glomerular filtration
c)
It is not urine
d)
The urine is highly concentrated
10.
Which condition may produce an extremely low specific gravity (as low as 1.001)?
a)
Diabetes mellitus
b)
Diabetes insipidus
c)
Pyelonephritis
d)
Proteinuria
11.
A specific gravity greater than 1.040 suggests the presence of:
a)
Bacteria
b)
Yeast
c)
Radiographic contrast dye
d)
Uric acid crystals
12.
Isosthenuria is defined as a specific gravity of:
a)
Equal to 1.010
b)
Less than 1.010
c)
Greater than 1.010
d)
Greater than 1.040
13.
Hyposthenuria refers to urine with a specific gravity:
a)
Equal to 1.010
b)
Less than 1.010
c)
Greater than 1.010
d)
Greater than 1.040
14.
Hypersthenuria refers to a specific gravity:
a)
Equal to 1.010
b)
Less than 1.010
c)
Greater than 1.010
d)
Greater than 1.040
15.
What is the calibration temperature of a urinometer?
a)
15°C
b)
20°C
c)
25°C
d)
30°C
16.
When the urine specimen’s temperature is 3°C below the calibration temperature, how should the specific gravity reading be corrected?
a)
Add 0.001
b)
Subtract 0.001
c)
Add 0.003
d)
Subtract 0.003
17.
When the urine specimen’s temperature is 3°C above the calibration temperature, how should the specific gravity reading be corrected?
a)
Add 0.001
b)
Subtract 0.001
c)
Add 0.003
d)
Subtract 0.003
18.
What is the required urine volume for urinometry?
a)
5 to 8 mL
b)
8 to 10 mL
c)
10 to 15 mL
d)
15 to 20 mL
19.
The average urine volume required for urinometry is approximately:
a)
8 mL
b)
10 mL
c)
12 mL
d)
15 mL
20.
Which of the following is used for calibration of the urinometer?
a)
A. Sodium chloride solution
b)
B. Potassium sulfate solution
c)
C. Glucose solution
d)
D. Sodium hydroxide solution
21.
How much potassium sulfate (K₂SO₄) is required to prepare 1 liter of calibration solution?
a)
10.15 g
b)
15.20 g
c)
20.29 g
d)
25.19 g
22.
What should be the specific gravity reading of the K₂SO₄ calibration solution?
a)
1.005
b)
1.010
c)
1.015
d)
1.020
23.
Correction for glucose concentration in urine during urinometry:
a)
Subtract 0.001 per g/dL
b)
Subtract 0.002 per g/dL
c)
Subtract 0.003 per g/dL
d)
Subtract 0.004 per g/dL
24.
Correction for protein concentration in urine during urinometry:
a)
Subtract 0.001 per g/dL
b)
Subtract 0.002 per g/dL
c)
Subtract 0.003 per g/dL
d)
Subtract 0.004 per g/dL
25.
When using the urinometer, what kind of motion should be used to add the instrument into the urine sample?
a)
A. Straight downward motion
b)
B. Swirling or spinning motion
c)
C. Stirring motion
d)
D. Tilting motion
26.
The specific gravity reading using the urinometer is taken at which part of the urine meniscus?
a)
A. Top of the meniscus
b)
B. Middle of the meniscus
c)
C. Bottom of the meniscus
d)
D. Edge of the meniscus
27.
What is the first step when using a refractometer?
a)
A. Close the daylight plate
b)
B. Read the scale through the eyepiece
c)
C. Place 1–2 drops of sample on the prism
d)
D. Wipe the prism clean
28.
In refractometry, why should the daylight plate be closed gently?
a)
A. To prevent spilling of the sample
b)
B. To ensure even spreading of the sample
c)
C. To avoid damaging the prism surface
d)
D. Both B and C
29.
What should you ensure before taking the reading in refractometry?
a)
A. Sample covers the entire prism surface
b)
B. The daylight plate remains open
c)
C. The sample is dried completely
d)
D. The eyepiece is adjusted to full brightness
30.
In reading a refractometer, what part of the scale should be noted?
a)
A. The top of the blue area
b)
B. The midpoint of the blue-white boundary line
c)
C. The boundary line where light and dark areas meet
d)
D. The bottom of the white area
31.
After taking the reading, what should be done next with the refractometer prism?
a)
A. Dry it with tissue only
b)
B. Rinse it with distilled water and dry with tissue
c)
C. Leave the sample to air dry
d)
D. Close the daylight plate immediately
32.
Both the refractometer and urinometer require correction factors for which substances?
a)
A. Sodium and potassium
b)
B. Glucose and protein
c)
C. Chloride and urea
d)
D. Creatinine and bilirubin
33.
How does the refractometer reading generally compare with the urinometer reading?
a)
A. Rf > U by 0.002
b)
B. Rf > U by 0.004
c)
C. Rf < U by 0.002
d)
D. Rf < U by 0.004
34.
What is the buffer used on protein parameter in reagent strip?
a)
Sodium buffer at pH 3.0
b)
Citrate buffer at pH 3.0
c)
Chloride buffer at pH 3.0
d)
Potassium buffer at pH 3.0
35.
The reagent in the multistix reaction for Specific gravity is
a)
Poly (methylvinylether / maleic anhydride), bromothymol blue
b)
Methyl red, bromothymol blue
c)
Tetrabromophenol blue, citrate buffer at pH 3.0
d)
Glucose oxidase, Peroxidase, Potassium iodide
e)
Sodium nitroprusside / nitroferricyanide, Glycine
36.
The reagent in the reagent strip reaction for pH is
a)
Poly (methylvinylether / maleic anhydride), bromothymol blue
b)
Methyl red, bromothymol blue
c)
Tetrabromophenol blue, citrate buffer at pH 3.0
d)
Glucose oxidase, Peroxidase, Potassium iodide
e)
Sodium nitroprusside / nitroferricyanide, Glycine
37.
The reagent in the Multistix reaction for protein is
a)
Poly (methylvinylether / maleic anhydride), bromothymol blue
b)
Methyl red, bromothymol blue
c)
Tetrabromophenol blue, citrate buffer at pH 3.0
d)
Glucose oxidase, Peroxidase, Potassium iodide
e)
Sodium nitroprusside / nitroferricyanide, Glycine
38.
The reagent in the Multistix reaction for glucose is
a)
Poly (methylvinylether / maleic anhydride), bromothymol blue
b)
Methyl red, bromothymol blue
c)
Tetrabromophenol blue, citrate buffer at pH 3.0
d)
Glucose oxidase, Peroxidase, Potassium iodide
e)
Sodium nitroprusside / nitroferricyanide, Glycine
39.
The reagent in the reagent strip reaction for Ketones is
a)
Poly (methylvinylether / maleic anhydride), bromothymol blue
b)
Methyl red, bromothymol blue
c)
Tetrabromophenol blue, citrate buffer at pH 3.0
d)
Glucose oxidase, Peroxidase, Potassium iodide
e)
Sodium nitroprusside / nitroferricyanide, Glycine
40.
The reagent in the Multistix reaction for blood is:
a)
Diisopropylbenzene dihydroperoxide tetramethylbenzidine
b)
2,4-dichloroaniline diazonium salt
c)
p-dimethylaminobenzaldehyde
d)
p-arsanilic acid, tetrahydrobenzo(h)-quinolin-3-ol
e)
Derivatized pyrrole amino acid ester, Diazonium salt
41.
The reagent in the Multistix reaction for bilirubin is:
a)
Diisopropylbenzene dihydroperoxide tetramethylbenzidine
b)
2,4-dichloroaniline diazonium salt
c)
p-dimethylaminobenzaldehyde
d)
p-arsanilic acid, tetrahydrobenzo(h)-quinolin-3-ol
e)
Derivatized pyrrole amino acid ester, Diazonium salt
42.
The reagent in the Multistix reaction for urobilinogen is:
a)
Diisopropylbenzene dihydroperoxide tetramethylbenzidine
b)
2,4-dichloroaniline diazonium salt
c)
p-dimethylaminobenzaldehyde
d)
p-arsanilic acid, tetrahydrobenzo(h)-quinolin-3-ol
e)
Derivatized pyrrole amino acid ester, Diazonium salt
43.
The reagent in the Multistix reaction for nitrite is:
a)
Diisopropylbenzene dihydroperoxide tetramethylbenzidine
b)
2,4-dichloroaniline diazonium salt
c)
p-dimethylaminobenzaldehyde
d)
p-arsanilic acid, tetrahydrobenzo(h)-quinolin-3-ol
e)
Derivatized pyrrole amino acid ester, Diazonium salt
44.
The reagent in the Multistix reaction for leukocyte is:
a)
Diisopropylbenzene dihydroperoxide tetramethylbenzidine
b)
2,4-dichloroaniline diazonium salt
c)
p-dimethylaminobenzaldehyde
d)
p-arsanilic acid, tetrahydrobenzo(h)-quinolin-3-ol
e)
Derivatized pyrrole amino acid ester, Diazonium salt
45.
Ethyleneglycoldiaminoethylethertetraacetic acid, bromothymol blue
a)
Specific gravity
b)
pH
c)
Protein
d)
Glucose
e)
Ketones
46.
Methyl red, bromothymol blue
a)
Specific gravity
b)
pH
c)
Protein
d)
Glucose
e)
Ketones
47.
Tetrachlorophenol tetrabromosulfonphthalein
a)
Specific gravity
b)
pH
c)
Protein
d)
Glucose
e)
Ketones
48.
Tetrabromophenol blue
a)
Specific gravity
b)
pH
c)
Protein
d)
Glucose
e)
Ketones
49.
Poly (methylvinylether/maleic anhydride)
a)
Specific gravity
b)
pH
c)
Protein
d)
Glucose
e)
Ketones
50.
Glucose oxidase, Peroxidase, Potassium iodide
a)
Specific gravity
b)
pH
c)
Protein
d)
Glucose
e)
Ketones
51.
Glucose oxidase, Peroxidase, Tetramethylbenzidine
a)
Specific gravity
b)
pH
c)
Protein
d)
Glucose
e)
Ketones
52.
Sodium nitroprusside
a)
Specific gravity
b)
pH
c)
Protein
d)
Glucose
e)
Ketones
53.
Sodium nitroferricyanide
a)
Specific gravity
b)
pH
c)
Protein
d)
Glucose
e)
Ketones
54.
Diisopropylbenzene dihydroperoxide tetremethylbenzidine
a)
Blood
b)
Bilirubin
c)
Urobilinogen
d)
Nitrite
e)
Leukocytes
55.
Dimethyldihydroperoxyhexane tetremethylbenzidine
a)
Blood
b)
Bilirubin
c)
Urobilinogen
d)
Nitrite
e)
Leukocytes
56.
p-dimethylaminobenzaldehyde
a)
Blood
b)
Bilirubin
c)
Urobilinogen
d)
Nitrite
e)
Leukocytes
57.
4-methoxybenze-diazonium-tetrafluoroborate
a)
Blood
b)
Bilirubin
c)
Urobilinogen
d)
Nitrite
e)
Leukocytes
58.
2,4-dichloroaniline diazonium salt
a)
Blood
b)
Bilirubin
c)
Urobilinogen
d)
Nitrite
e)
Leukocytes
59.
2,6-dichlorobenzene diazonium salt
a)
Blood
b)
Bilirubin
c)
Urobilinogen
d)
Nitrite
e)
Leukocytes
60.
p-arsanilic acid, tetrahydrobenzol(h)-quinolin-3-ol
a)
Blood
b)
Bilirubin
c)
Urobilinogen
d)
Nitrite
e)
Leukocytes
61.
Sulfanilamide, hydroxytetrahydro benzoquinoline
a)
Blood
b)
Bilirubin
c)
Urobilinogen
d)
Nitrite
e)
Leukocytes
62.
Derivatized pyrrole amino acid ester, Diazonium salt
a)
Blood
b)
Bilirubin
c)
Urobilinogen
d)
Nitrite
e)
Leukocytes
63.
Indoxylcarbonic acid ester, Diazonium salt
a)
Blood
b)
Bilirubin
c)
Urobilinogen
d)
Nitrite
e)
Leukocytes
64.
Reagent strip for protein is sensitive to?
a)
CRP
b)
Albumin
c)
Alpa-fetoprotein
d)
Gamma globulins
65.
High concentration of protein
a)
False positive specific gravity reaction
b)
False negative specific gravity reaction
66.
Highly alkaline urines (>6.5)
a)
False positive specific gravity reaction
b)
False negative specific gravity reaction
67.
Which of the following has no known interfering substances?
a)
Specific gravity
b)
pH
c)
Protein
d)
Glucose
e)
Ketones
68.
Interferences include: runover from adjacent pads, and old specimens
a)
Specific gravity
b)
pH
c)
Protein
d)
Glucose
e)
Ketones
69.
All of the following may cause a false positive protein reaction EXCEPT;
a)
Highly buffered alkaline urine
b)
Pigmented specimen
c)
Phenazopyridine
d)
Microalbuminuria
e)
QUATS
70.
Highly buffered alkaline urine
a)
False positive protein reagent strip reaction
b)
False negative protein reagent strip reaction
71.
Pigmented specimen
a)
False positive protein reagent strip reaction
b)
False negative protein reagent strip reaction
72.
High specific gravity
a)
False positive protein reagent strip reaction
b)
False negative protein reagent strip reaction
73.
Loss of buffer from prolonged exposure of the reagent strip to the specimen
a)
False positive protein reagent strip reaction
b)
False negative protein reagent strip reaction
74.
Chlorhexidine
a)
False positive protein reagent strip reaction
b)
False negative protein reagent strip reaction
75.
Antiseptics
a)
False positive protein reagent strip reaction
b)
False negative protein reagent strip reaction
76.
QUATS
a)
False positive protein reagent strip reaction
b)
False negative protein reagent strip reaction
77.
Phenazopyridine
a)
False positive protein reagent strip reaction
b)
False negative protein reagent strip reaction
78.
Protein other than albumin
a)
False positive protein reagent strip reaction
b)
False negative protein reagent strip reaction
79.
Microalbuminuria
a)
False positive protein reagent strip reaction
b)
False negative protein reagent strip reaction
80.
Oxidizing agents
a)
False positive glucose reagent strip reaction
b)
False negative glucose reagent strip reaction
81.
Detergents
a)
False positive glucose reagent strip reaction
b)
False negative glucose reagent strip reaction
82.
High levels of ascorbic acid
a)
False positive glucose reagent strip reaction
b)
False negative glucose reagent strip reaction
83.
High specific gravity
a)
False positive glucose reagent strip reaction
b)
False negative glucose reagent strip reaction
84.
Low temperature
a)
False positive glucose reagent strip reaction
b)
False negative glucose reagent strip reaction
85.
Improperly preserved specimen
a)
False positive glucose reagent strip reaction
b)
False negative glucose reagent strip reaction
86.
All of the following may cause false negative glucose reagent strip reaction except;
a)
High levels of ascorbic acid
b)
Ketones
c)
Oxidizing agents
d)
Improperly preserved specimen
e)
Low temperature
87.
All of the following may cause false negative glucose reagent strip reaction except;
a)
High levels of ascorbic acid
b)
Ketones
c)
High specific gravity
d)
Improperly preserved specimen
e)
Detergents
88.
Phthalein dyes
a)
False positive ketones reagent strip reaction
b)
False negative ketones reagent strip reaction
89.
Improperly preserved specimens
a)
False positive ketones reagent strip reaction
b)
False negative ketones reagent strip reaction
90.
All of the following may cause a false positive ketone reagent strip reaction except;
a)
Phthalein dyes
b)
Pigmented red urine
c)
Improperly preserved specimens
d)
Levodopa
e)
Drugs with sulfhydryl groups
91.
Drugs with sulfhydryl groups
a)
False positive ketones reagent strip reaction
b)
False negative ketones reagent strip reaction
92.
Levodopa
a)
False positive ketones reagent strip reaction
b)
False negative ketones reagent strip reaction
93.
Pigmented red urine
a)
False positive ketones reagent strip reaction
b)
False negative ketones reagent strip reaction
94.
Strong oxidizing agents
a)
False positive blood reagent strip reaction
b)
False negative blood reagent strip reaction
95.
Bacterial peroxidases
a)
False positive blood reagent strip reaction
b)
False negative blood reagent strip reaction
96.
Menstrual contamination
a)
False positive blood reagent strip reaction
b)
False negative blood reagent strip reaction
97.
High specific gravity
a)
False positive blood reagent strip reaction
b)
False negative blood reagent strip reaction
98.
Unmixed specimens
a)
False positive blood reagent strip reaction
b)
False negative blood reagent strip reaction
99.
Ascorbic acid (>25 mg/dL)
a)
False positive blood reagent strip reaction
b)
False negative blood reagent strip reaction
100.
High concentrations of nitrite
a)
False positive blood reagent strip reaction
b)
False negative blood reagent strip reaction
101.
Captopril
a)
False positive blood reagent strip reaction
b)
False negative blood reagent strip reaction
102.
Formalin
a)
False positive blood reagent strip reaction
b)
False negative blood reagent strip reaction
103.
Crenated cells
a)
False positive blood reagent strip reaction
b)
False negative blood reagent strip reaction
104.
All of the following may cause a false negative blood reagent strip result except;
a)
High specific gravity
b)
Crenated cells
c)
Captopril
d)
Strong oxidizing agents
e)
High concentrations of nitrite
105.
All of the following may cause a false negative blood reagent strip result except;
a)
High specific gravity
b)
Crenated cells
c)
Captopril
d)
Unmixed specimens
e)
Bacterial peroxidases
106.
All of the following may cause a false negative blood reagent strip result except;
a)
High specific gravity
b)
Crenated cells
c)
Menstrual contamination
d)
Unmixed specimens
e)
Ascorbic acid
107.
Highly pigmented urine
a)
False positive bilirubin reagent strip reaction
b)
False negative bilirubin reagent strip reaction
108.
Metabolite of iodine
a)
False positive bilirubin reagent strip reaction
b)
False negative bilirubin reagent strip reaction
109.
Specimen exposure to light
a)
False positive bilirubin reagent strip reaction
b)
False negative bilirubin reagent strip reaction
110.
High concentration of nitrite
a)
False positive bilirubin reagent strip reaction
b)
False negative bilirubin reagent strip reaction
111.
Ascorbic acid
a)
False positive bilirubin reagent strip reaction
b)
False negative bilirubin reagent strip reaction
112.
All of the following may cause a false negative bilirubin reaction except;
a)
Specimen exposure to light
b)
High concentration of nitrite
c)
Ascorbic acid >25 mg/dL
d)
Highly pigmented urine
113.
All of the following may cause a false negative bilirubin reaction except;
a)
Indican
b)
High concentration of nitrite
c)
Ascorbic acid >25 mg/dL
d)
Specimen exposure to light
114.
All of the following may cause a false negative bilirubin reaction except;
a)
Metabolite of iodine
b)
High concentration of nitrite
c)
Ascorbic acid >25 mg/dL
d)
Specimen exposure to light
115.
All of the following may cause a false negative bilirubin reaction except;
a)
Specimen exposure to light
b)
High concentration of nitrite
c)
Ascorbic acid >25 mg/dL
d)
phenazopyridine
116.
Indican
a)
False positive bilirubin reagent strip reaction
b)
False negative bilirubin reagent strip reaction
117.
Phenazopyridine
a)
False positive bilirubin reagent strip reaction
b)
False negative bilirubin reagent strip reaction
118.
Ehrlich-reactive compounds
a)
False positive urobilinogen reagent strip reaction
b)
False negative urobilinogen reagent strip reaction
119.
pigmented urine
a)
False positive urobilinogen reagent strip reaction
b)
False negative urobilinogen reagent strip reaction
120.
chlorpromazine
a)
False positive urobilinogen reagent strip reaction
b)
False negative urobilinogen reagent strip reaction
121.
p-aminosalicylic acid
a)
False positive urobilinogen reagent strip reaction
b)
False negative urobilinogen reagent strip reaction
122.
Sulfonamides
a)
False positive urobilinogen reagent strip reaction
b)
False negative urobilinogen reagent strip reaction
123.
Procaine
a)
False positive urobilinogen reagent strip reaction
b)
False negative urobilinogen reagent strip reaction
124.
Methyldopa
a)
False positive urobilinogen reagent strip reaction
b)
False negative urobilinogen reagent strip reaction
125.
Indican
a)
False positive urobilinogen reagent strip reaction
b)
False negative urobilinogen reagent strip reaction
126.
Porphobilinogen
a)
False positive urobilinogen reagent strip reaction
b)
False negative urobilinogen reagent strip reaction
127.
old specimens
a)
False positive urobilinogen reagent strip reaction
b)
False negative urobilinogen reagent strip reaction
128.
high concentrations of nitrite
a)
False positive urobilinogen reagent strip reaction
b)
False negative urobilinogen reagent strip reaction
129.
preservation in formalin
a)
False positive urobilinogen reagent strip reaction
b)
False negative urobilinogen reagent strip reaction
130.
Improperly preserved specimens
a)
False positive nitrite reagent strip reaction
b)
False negative nitrite reagent strip reaction
131.
Nonreductase-containing bacteria
a)
False positive nitrite reagent strip reaction
b)
False negative nitrite reagent strip reaction
132.
insufficient contact time between bacteria and urinary nitrate
a)
False positive nitrite reagent strip reaction
b)
False negative nitrite reagent strip reaction
133.
large quantities of bacteria converting nitrite to nitrogen
a)
False positive nitrite reagent strip reaction
b)
False negative nitrite reagent strip reaction
134.
high specific gravity
a)
False positive nitrite reagent strip reaction
b)
False negative nitrite reagent strip reaction
135.
high ascorbic acid
a)
False positive nitrite reagent strip reaction
b)
False negative nitrite reagent strip reaction
136.
antibiotics
a)
False positive nitrite reagent strip reaction
b)
False negative nitrite reagent strip reaction
137.
Highly pigmented urine
a)
False positive nitrite reagent strip reaction
b)
False negative nitrite reagent strip reaction
138.
Strong oxidizing agents
a)
False positive leukocytes reagent strip reaction
b)
False negative leukocytes reagent strip reaction
139.
Nitrofurantoin
a)
False positive leukocytes reagent strip reaction
b)
False negative leukocytes reagent strip reaction
140.
Highly pigmented urine
a)
False positive leukocytes reagent strip reaction
b)
False negative leukocytes reagent strip reaction
141.
Formalin
a)
False positive leukocytes reagent strip reaction
b)
False negative leukocytes reagent strip reaction
142.
High concentration of protein
a)
False positive leukocytes reagent strip reaction
b)
False negative leukocytes reagent strip reaction
143.
crenated leukocytes
a)
False positive leukocytes reagent strip reaction
b)
False negative leukocytes reagent strip reaction
144.
inaccurate timing
a)
False positive leukocytes reagent strip reaction
b)
False negative leukocytes reagent strip reaction
145.
High concentration of tetracycline
a)
False positive leukocytes reagent strip reaction
b)
False negative leukocytes reagent strip reaction
146.
High concentration of cephalosporin
a)
False positive leukocytes reagent strip reaction
b)
False negative leukocytes reagent strip reaction
147.
High concentration of gentamicin
a)
False positive leukocytes reagent strip reaction
b)
False negative leukocytes reagent strip reaction
148.
High concentration of ascorbic acid
a)
False positive leukocytes reagent strip reaction
b)
False negative leukocytes reagent strip reaction
149.
High concentration of oxalic acid
a)
False positive leukocytes reagent strip reaction
b)
False negative leukocytes reagent strip reaction
150.
High concentration of glucose
a)
False positive leukocytes reagent strip reaction
b)
False negative leukocytes reagent strip reaction
100 %
