PARA LAB LA2

Question 1

a test to measure for acidity of stool to help in the diagnosis of a certain medical condition

Answer 1

Test for pH- nitrazine paper test

Question 2

Normal pH of feces

Answer 2

6.6

Question 3

low pH below 6.0 may be a result of _______________

Answer 3

diarrhea

Question 4

a slightly alkaline pH is observed in patients with________________

Answer 4

low-fiber diet

Question 5

what is the test for mucus

Answer 5

Hecht method

Question 6

test for occult blood

Answer 6

fecal occult blood test (FOBT)

Question 7

test for bile pigment

Answer 7

Gmelins test

Question 8

test to determine whether the blood is grossly bloody vomitus or feces of the neonate represents swallowed maternal blood during delivery or during breastfeeding

Answer 8

APT test or Apt-downey

Question 9

test for ability to digest gelatin

Answer 9

TRYPSIN

Question 10

test for presence of reducing substances

Answer 10

CLINITEST

Question 11

large amounts of mucus in stool may indicate _______________

Answer 11

diarrhea

Question 12

is an indication of gastrointestinal tract bleeding

Answer 12

occult blood

Question 13

this test is helpful as a mass screening procedure for colorectal cancer

Answer 13

FOBT

Question 14

color for positive in FOBT

Answer 14

blue

Question 15

what can cause false positive in FOBT

Answer 15

eating peroxidase containing food and intake of drugs like aspirin or other anti inflammatory drugs

Question 16

what can case false negative in FOBT

Answer 16

intake if large amounts of vitamin C and conversion to acid hematin

Question 17

positive reaction for gmelins test

Answer 17

play of colors (order: out to in): green, blue, violet, red, yellow (GBVRY)

Question 18

absence of green in gmelins test indicate?

Answer 18

excludes the presence of bile pigment

Question 19

normally around __ grams per day of fat is excreted in the feces

Answer 19

7g

Question 20

excess fat excreted in the feces is called

Answer 20

steatorrhea

Question 21

is caused by the deficiency of pancreatic lipase and bile salts

Answer 21

steatorrhea

Question 22

neonatal blood contains a high proportion of ________________ which is resistant to alkali denaturation

Answer 22

fetal hemoglobin

Question 23

in apt test in the presence of fetal hemoglobin the solution __________________

Answer 23

remains pink

Question 24

in apt test in the presence of maternal hemoglobin the solution _____________________________

Answer 24

becomes yellow brown after 2 mins

Question 25

hecht reagent is prepared by mixing ______________ and _________________

Answer 25

2% brilliant green and 1% neutral red

Question 26

to prevent false positive in gmelins test, diet should be free from peroxidase-containing foods for at least ________ prior to testing

Answer 26

3 days

Question 27

oxidized bile pigments by acids

Answer 27

biliverdin (green)
bilicyanin (blue)
choletelin (yellow)