A compilation of random lessons on topics ranging from perioperative and critical care medicine to physiology and pharmacology. Enjoy! :-)

  • Cardiac Action Potential

    In order for the heart muscle to actually contract, the physiological process of excitation-contraction coupling must occur via an action…

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  • Tigecycline

    Tigecycline (Tygacil) is an intravenous glycylcycline antibiotic used to treat a variety of skin/soft tissue infections, complicated intra-abdominal infections, and…

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  • Posey Cufflator Manometer

    Endotracheal tubes (ETTs) and tracheostomy tubes have pilot balloons which are inflated to expand a pilot cuff situated within the…

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  • Subcutaneous Emphysema

    Subcutaneous emphysema occurs when air gets trapped within the subcutaneous regions of the face, neck, chest wall, abdomen, and even…

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  • Antibody Structure

    With all the discussion surrounding antibody production after receiving a COVID-19 vaccine, let’s talk about the structure of an antibody.

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  • Prone Chest X-Rays

    In severe COVID-19 pneumonia with refractory hypoxemia, patients are often proned (put on their abdomen), deeply sedated, and paralyzed to…

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  • Deep Sulcus Sign

    A pneumothorax occurs when air fills the pleural space between the lungs and chest wall. This can cause partial or…

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