Biliary Excretion and Anthracycline Drugs Quiz
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Questions and Answers

What is the major route of elimination for anthracycline drugs?

  • Biliary excretion (correct)
  • Sweat excretion
  • Renal excretion
  • Fecal excretion

What is a visible side effect related to the dark red color of anthracycline drugs?

  • Yellow discoloration of urine
  • Magenta discoloration of hair
  • Red discoloration of urine (correct)
  • Bluish discoloration of skin

What is the most serious adverse reaction associated with anthracycline drugs?

  • Temporary hair loss
  • Digestive issues
  • Reversible skin discoloration
  • Dose-dependent cardiotoxicity (correct)

What is the proposed mechanism behind anthracycline-induced cardiotoxicity?

<p>Increased lipid peroxidation (D)</p> Signup and view all the answers

What intervention has shown some success in protecting against doxorubicin-induced cardiotoxicity?

<p>Administering dexrazoxane, an iron chelator (D)</p> Signup and view all the answers

Which phase of the cell cycle does bleomycin cause cells to accumulate in?

<p>G2 phase (B)</p> Signup and view all the answers

What is the main cytotoxic effect of alkylating agents like cyclophosphamide and ifosfamide?

<p>Alkylation of DNA (D)</p> Signup and view all the answers

Which tissue has a low level of the bleomycin-inactivating enzyme, leading to toxicity?

<p>Lung (C)</p> Signup and view all the answers

What is the main cause of pulmonary toxicity associated with bleomycin?

<p>Fibrosis progression (A)</p> Signup and view all the answers

How do alkylating agents impact different types of cells?

<p>They bind covalently to nucleophilic groups on various cell constituents (A)</p> Signup and view all the answers

What is the primary mode of excretion for bleomycin?

<p>Unchanged in urine (A)</p> Signup and view all the answers

How do superoxide and hydroxyl radicals affect DNA in the presence of liberated electrons?

<p>Induce strand breakage (A)</p> Signup and view all the answers

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