The ANS & the Respiratory System - BM5 RCR1

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1. Other than bronchodilation, what other effect do muscarinic antagonists have?

  • Decreased adrenaline secretion
  • Reduce secretions (e.g. mucus)
  • Increase adrenaline secretion
  • Increase secretions (e.g. mucus)
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2. Which of the following conditions should you take special measures to accommodate when prescribing muscarinic antagonists for asthma/COPD?

  • Glaucoma & bladder conditions
  • Xanthinitis
  • Heart disease
  • Broken bone

3. Contraction of what type of muscle leads to narrowing of the airway lumen & bronchoconstriction?

  • Skeletal muscle
  • Smooth muscle
  • Cardiac muscle

4. What are the expected side effects of muscarinic antagonists?

  • Constipation (+ tachycardia & AF)
  • Nausea (+ tachycardia & VF)
  • Vomiting (+ bradycardia & PEA)
  • Diarrhoea (+ bradycardia & VT)

5. The action of adrenalin on which receptor causes dilation of blood vessels in skeletal muscle?

  • Beta II
  • Alpha II
  • Beta I
  • Alpha I

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