Education
A compilation of random lessons on topics ranging from perioperative and critical care medicine to physiology and pharmacology. Enjoy! :-)
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West’s Lung Zones
Alveoli that are well ventilated (V) should be associated with good pulmonary capillary blood perfusion (Q) to maximize gas exchange.…
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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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Tension Pneumothorax
Here’s an example of a large, right-sided tension pneumothorax (PTX). Disruption in the lung leads to a one-way valve where…
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Air Bronchograms
In this portable x-ray of a patient with COVID-19 pneumonia, one can clearly see the right and left mainstem bronchi…
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