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Benefit |
Allow independent exploration of topics |
Example |
Ventilation Perfusion Mismatch |
Background |
Ventilation perfusion mismatch refers to an imbalance
between oxygen supply and removal across regions of the lung and is
one of the most common underlying causes of poor oxygenation of the
blood. A grasp of the factors affecting oxygenation at the smallest
scale (the alveolar air sacs of the lung) provides the basis for understanding
ventilation perfusion mismatch at the organ system level. Knowledge
of this entity offers insight into the complications and treatments
of conditions such as pneumonia and emphysema. |
New approach |
A simulation shows how ventilation (V) and perfusion
(Q) affect oxygenation at the level of the alveolus and lung capillary.
By allowing experimentation with multiple cases, rather than restricting
the learner to one or two scenarios presented statically in a text,
there is greater potential for engagement and exploration. Use the sliders
to adjust ventilation and perfusion and observe the effect on oxygen
levels in the capillary blood. |
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