chemical analysis of urine 2

Question 1

early indicator of liver disease

a. protein
b. glucose
c. bilirubin

Answer 1

bilirubin

Question 2

legal’s test

a. bilirubin
b. ketones
c. glucose

Answer 2

ketones
principle
- legal’s test or sodium nitroprusside reaction

Question 3

double sequential enzymatic reaction

a. glucose
b. ketones
c. bilirubin

Answer 3

glucose

Question 4

pseudoperoxidase activity of heme

a. bilirubin
b. urobilirubin
c. blood

Answer 4

blood

Question 5

diazo reaction

a. bilirubin
b. urobilirubin
c. blood

Answer 5

bilirubin

Question 6

what kind of bilirubin is water soluble and can detect in urine

a. b1/ uncon
b. b2 / conjugated

Answer 6

conjugated/ b2

Question 7

its reagent strip is difficult to interpret because it is easily influenced by other pigments present in urine

a. blood
b. bilirubin
c. ketones

Answer 7

bilirubin

Question 8

what is the reaction in bilirubin reagent strip on highly exposure to light

a. false pos
b. false neg

Answer 8

false neg

Question 9

what is the reaction in bilirubin reagent strip on indican

a. false pos
b. false neg

Answer 9

false pos

Question 10

normal adult urine contains bilirubin only

a. <10mg/dl
b. 0,2mg/dl
c. 5mg/ml

Answer 10

0.2 mg/dl

Question 11

confirmatory test for bilirubin

a. bloodheim’s precipitation
b. ictotest
c. acetest

Answer 11

ictotest
- confirmatory test for bilirubin

bloodheim’s test - hemoglobinuria vs. myoglobinuria

actest
- ketones

Question 12

it is used to diagnosed the pre hepatic from hepatic

a. urobilinogen
b. ictotest
c. bilirubin

Answer 12

urobilinogen

Question 13

how many urobilinogen can be found in normal urine

a. 0.2 mg/dl
b. <10mg/dl
c. 1 mg/dl

Answer 13

1 mg/dl - urobilinogen

0.2 mg/dl - bilirubin

Question 14

how many ehrlich unit is 1mg/dl

a. 0.1
b. 1
c. 0.001

Answer 14

ratio of mg/dl : ehrlich unit
1:1

ans: b

Question 15

preferred sample for urobilinogen

a. random urine
b. afternoon urine
c. first morning

Answer 15

afternoon urine (2pm-4pm)

Question 16

What would be the result of urobilinogen measurements if the reagent strip is performed at a higher temperature?

a. false decreased
b. false increased

Answer 16

false increase

the sensitivity of the ehrlich reaction INCREASES WITH TEMPERATURE and testing should be performed at room temperature

Question 17

watson- schwartz test

a. urobilinogen
b. bilirubin
c. blood

Answer 17

urobinogen

Question 18

watson- schwartz test
soluble in both butanol and chloroform

a. urobilinogen
b. porphobilinogen
c. ehrlich reactive

Answer 18

urobilinogen - soluble in BOTH butanol and chloroform

Question 19

watson- schwartz test
soluble in butanol only

a. urobilinogen
b. porphobilinogen
c. ehrlich reactive

Answer 19

ehrilich - soluble in butanol only

porpho - insoluble in both

uro - soluble in both

Question 20

rapid screening test for porphobilinogen

a. bloodheim’s test
b. hoesch test
c. ictotest

Answer 20

hoesch test/ inverse ehrlich reaction

Question 21

urine bilirubin : +/-

urine urobilinogen : +++

a. pre hepatic jaundice
b. hepatic jaundice
c. post hepatic jaundice

Answer 21

urine bilirubin : +/-

urine urobilinogen : +++

HEPATIC JANDICE ( liver damge)
increase both conju and uncoju

Question 22

urine bilirubin : negative

urine urobilinogen : +++

a. pre hepatic jaundice
b. hepatic jaundice
c. post hepatic jaundice

Answer 22

urine bilirubin : negative

urine urobilinogen : +++

pre hepatic jaundice (hemolytic disease)
b1

Question 23

urine bilirubin : +++

urine urobilinogen : normal

a. pre hepatic jaundice
b. hepatic jaundice
c. post hepatic jaundice

Answer 23

post hepatic

b2 increased( bile duct obstruction)

Question 24

principle: greiss reaction

a. nitrite
b. leukocyte
c. urobilinogen

Answer 24

niitrite

Question 25

it provides rapid screening test for the presence of UTI and bactereriuria

a. nitrite
b. leukocyte
c. urobilinogen

Answer 25

nitrite

Question 26

it is used to evaluate the success of antibiotic therapy

a. nitrite
b. leukocyte
c. urobilinogen

Answer 26

nitrite

Question 27

bacteria that is mostly positive

a. gram negative cocci
b. gram negative bacilli
c gram positive bacilli

Answer 27

gram negative bacilli

Question 28

diazonium salt as a product

a. leukocytes
b. bilirubin
c. urobilonogen

Answer 28

diazonium salt as PRODUCT
-NITRITE

diazonium salt as a REAGENT
         BUL
              B  - BILIRUBIN
              U - UROBILINOGEN
               L - LEUKO ESTERASE

Question 29

leukocyte esterase detects esterase foung in the following EXCEPT

a. neutrophil
b. leukocytes
c. eosinophils
d. basophil
e. monocytes

Answer 29

leukocytes

l.e tests is not designed to measure the conc of leukocytes

Question 30

screening urine specimen using LE test it should be correlated with what test

a. ssa
b. actetest
c. nitrite chemical test

Answer 30

nitrite chemical test

Question 31

leukocyte esterase detects esterase foung in the following EXCEPT

a. trichomonas
b. bacteria
c. yeast
d. chlamydia
e. histocytes

Answer 31

bacteria

lymphocytes, bacteria, erthyrocytes and renal tissue disease do not contain esterases

Question 32

11th parameter

a. ascorbic acid
b. leukocyte esterase
c. nitrite

Answer 32

vitamin c

Question 33

can cause false POSITIVE in ascorbic acid

a. clinitets
b. blood
c. bilirubin

Answer 33

clinitest