Chemistry BOC Heme Derivatives
UPDATED ACTUAL Exam Questions and
CORRECT Answers
The principle of the occult blood test depends upon the - CORRECT ANSWER -
Peroxidase like activity of hemoglobin
A breakdown product of hemoglobin is - CORRECT ANSWER - Bilirubin
Hgb S can be seperated from Hgb D by - CORRECT ANSWER - Electorphoresis on a
different medium and acidic pH
On electrophoresis at alkaline pH, which of the following is the slowest migrating hgb -
CORRECT ANSWER - Hgb C
The Hgb that is resistant to alkali (KOH) denaturation is - CORRECT ANSWER -F
The following results are obtained on a patient:
Day 1: 4.3 mg/dL
Day 2: 4.6 mg/dL
Day 3: 4.5 mg/dL
Day 4: 2.2 mg/dL
Day 5: 4.4 mg/dL
Day 6: 4.5 mg/dL
Given that the controls were within range each day, what is a probable explination for the results
on day 4? - CORRECT ANSWER - Specimen had prolonged exposure to light
Urobilinogen is formed in the - CORRECT ANSWER - Intestine
UPDATED ACTUAL Exam Questions and
CORRECT Answers
The principle of the occult blood test depends upon the - CORRECT ANSWER -
Peroxidase like activity of hemoglobin
A breakdown product of hemoglobin is - CORRECT ANSWER - Bilirubin
Hgb S can be seperated from Hgb D by - CORRECT ANSWER - Electorphoresis on a
different medium and acidic pH
On electrophoresis at alkaline pH, which of the following is the slowest migrating hgb -
CORRECT ANSWER - Hgb C
The Hgb that is resistant to alkali (KOH) denaturation is - CORRECT ANSWER -F
The following results are obtained on a patient:
Day 1: 4.3 mg/dL
Day 2: 4.6 mg/dL
Day 3: 4.5 mg/dL
Day 4: 2.2 mg/dL
Day 5: 4.4 mg/dL
Day 6: 4.5 mg/dL
Given that the controls were within range each day, what is a probable explination for the results
on day 4? - CORRECT ANSWER - Specimen had prolonged exposure to light
Urobilinogen is formed in the - CORRECT ANSWER - Intestine
