The section ‘MCQs for your EDAIC preparation’ covers a different topic each day with the intent that candidates can prepare one small topic each day, making steady progress in their exam preparation.
Question: Denitrogenation prior to anaesthetic induction
- blunts hypoxic pulmonary vasoconstriction
- increase oxygen reserve in the functional residual capacity improve
- significantly increases time to desaturation
- increase second gas effect to the rate of induction
- doubles the survival duration of open-airway apnoea.
Explanation:
- Preoxygenation aims to replace nitrogen in the lungs (FRC) with oxygen ie denitrogenation. This has a significant impact on body oxygen storage and therefore increases tolerance to apnoea substantially.
- For an adult with a normal FRC and oxygen demand, if the alveolar Oxygen concentration becomes >90%, the lungs contain ∼2000 ml of oxygen.
- It is important to maintain a patent airway if a patient is apnoeic, even if no ventilation is being attempted.
- Increasing the oxygen fraction applied to the airway from 90% to 100% more than doubles the survival duration of open-airway apnoea.
- Time to critical hypoxaemia for an apnoeic obese patient is extended by preoxygenation in a head-up position.
- Preoxygenation is a simple safety procedure, which can have a significant influence on time to desaturation.
Answers:
- false
- true
- true
- false
- true
Cardiopulmonary bypass Module
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- The basic CPB circuitry.
- Myocardial injury and preservation during CPB.
- Conduct and complications of CPB.
- The perioperative considerations surrounding the management of a patient undergoing CPB.
ANAESTHETIC IMPLICATIONS OF THE CARDIAC IMPLANTABLE ELECTRONIC DEVICES (CIEDs)
Cardiovascular physiology module by targetedaic
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The ‘MCQs for your EDAIC preparation’ section covers a different topic each day with the intent that candidates can prepare one small topic each day, making steady progress in their exam preparation.
