Which of the following strategies are useful in the management of shunt?
1) Positive end expiratory pressure
2) Permissive hypercapnia
3) Control of membrane permeability

Question

Quizplus · Accepted Answer

Positive end expiratory pressure (PEEP) can help improve oxygenation in patients with shunt by increasing alveolar recruitment and decreasing atelectasis, but it does not directly affect membrane permeability or address the underlying cause of shunt. Similarly, control of membrane permeability may be relevant in certain specific conditions, but it is not a general strategy for shunt management. Permissive hypercapnia is a strategy that allows a higher than normal level of carbon dioxide in the blood, which can help decrease shunt by reducing hyperventilation-induced vasoconstriction in the lungs. This approach can be useful in certain clinical situations, such as acute respiratory distress syndrome (ARDS) or obstructive lung disease, where high ventilation rates can worsen shunt. Therefore, the best choice is B, 1 and 3 only.

Which of the Following Strategies Are Useful in the Management