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CC } Respiratory Assessment
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STAT Stitch Deep Dive Podcast Beyond The Bedside by Regular Guy
Episode notes
- Gas Exchange: Primary goal: O2/CO2 exchange across alveolar-capillary membrane.
- Anatomy: Upper tract warms/humidifies/filters air; epiglottis covers larynx to prevent aspiration. Carina is highly sensitive, triggering vigorous cough on stimulation.
- Aspiration: Right mainstem bronchus is shorter, wider, straighter than left; aspiration is far more common in right lung.
- Dead Space: Normal tidal volume (VT) is ~500 mL (~150 mL is anatomical dead space [VD] without gas exchange).
- Alveoli & Surfactant: 300M+ alveoli connect via pores of Kohn. Surfactant lowers surface tension, preventing collapse (atelectasis).
- Pleural Biology: Visceral pleura lacks pain fibers; parietal pleura has p ...
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