KROK 1 2007 – Question 1 · KROK (Medicine) · Biological Chemistry

A patient had to go through an operation. Doctors introduced him dithylinum (listenone) and performed intubation. After the end of operation and cessation of anesthesia the independent respiration wasn’t restored. Which enzyme deficit prolongs the action of muscle relaxant?

  1. A. Pseudocholinesterase
  2. B. N-acetyltransferase
  3. C. K-Na-adenosine triphosphatase
  4. D. Carbanhydrase
  5. E. Succinate dehydrogenase
Hint

Ask which plasma enzyme normally hydrolyses this short-acting depolarising relaxant within minutes, and what happens to breathing when that enzyme is genetically weak.

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