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Questions and Answers
What is the primary measurement used to determine the level of bilirubin in the body?
What is the primary measurement used to determine the level of bilirubin in the body?
- Direct bilirubin measurement
- Total bilirubin measurement (correct)
- Conjugated bilirubin measurement
- Indirect bilirubin measurement
What is the role of ligandins in bilirubin physiology?
What is the role of ligandins in bilirubin physiology?
- Ligandins are responsible for the transport of bilirubin from the plasma membrane to the endoplasmic reticulum. (correct)
- Ligandins are responsible for the excretion of bilirubin into the bile canaliculi.
- Ligandins are involved in the enterohepatic circulation of bilirubin.
- Ligandins are involved in the conjugation of bilirubin with glucuronides.
What enzyme is responsible for the conjugation of bilirubin with glucuronides?
What enzyme is responsible for the conjugation of bilirubin with glucuronides?
- Beta-glucuronidase
- Bilirubin ligandins
- Uridine diphosphate glucuronyl transferase (UDPGT) (correct)
- Plasma membrane transporters
What is the primary cause of the instability and hydrolysis of conjugated bilirubin in the duodenum and jejunum?
What is the primary cause of the instability and hydrolysis of conjugated bilirubin in the duodenum and jejunum?
What is the primary reason for the increased levels of unconjugated bilirubin in newborn infants?
What is the primary reason for the increased levels of unconjugated bilirubin in newborn infants?
Which of the following is NOT a primary purpose for the handling of free (intravascular) hemoglobin?
Which of the following is NOT a primary purpose for the handling of free (intravascular) hemoglobin?
Which of the following statements about haptoglobin is incorrect?
Which of the following statements about haptoglobin is incorrect?
What is the primary function of hemopexin?
What is the primary function of hemopexin?
Which of the following statements about bilirubin metabolism is incorrect?
Which of the following statements about bilirubin metabolism is incorrect?
What is the fate of stercobilinogen (urobilinogen) produced by gut bacteria from bilirubin?
What is the fate of stercobilinogen (urobilinogen) produced by gut bacteria from bilirubin?
How is the determination of bilirubin levels in serum samples performed?
How is the determination of bilirubin levels in serum samples performed?
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