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Latest articles

What defines physiological dead space?

In this video, from our Blood Gas Analysis Essentials course, you'll learn about the pathophysiologic consequences of a functional state of regional lung ventilation unaccompanied by blood flow—physiological dead space.
18th Apr 2020 • 2m read

Everything you need to know about the ventilation / perfusion (V / Q) ratio

In this video, we'll cover the anatomical and physiological factors that determine how well different parts of the lung are ventilated, key equations you need to know that describe this heterogeneity, and how this affects your clinical decision-making.
11th Apr 2020 • 4m read

The Medmastery Show (Ep 8): Pamela Douglas—inspirational advice from a successful female cardiologist

In this short interview, we talk about how to be happy and successful as a cardiologist, what makes a great clinician, researcher and overall human being. If you are working in cardiology, you don't want to miss these valuable nuggets of wisdom!
9th Apr 2020 • 2m read

Grading pulmonary regurgitation

In this video, you'll learn about the use of colour flow mapping and spectral Doppler-based techniques to locate and visually assess the severity of pulmonary regurgitation.
8th Apr 2020 • 1m read

How NIV improves ventilation

In this video, we'll review the mechanisms by which NIV can improve ventilation.  
7th Apr 2020 • 2m read

What is diffusing capacity and why is it important?

In this video, we'll take a look at the importance of diffusing capacity, as a measure of gas exchange, and consider the clinical factors that affect it.
3rd Apr 2020 • 4m read

Assessing tricuspid valve stenosis

In this video, you'll learn about the Doppler measurements used to identify the presence of tricuspid valve stenosis.
28th Mar 2020 • 1m read

Learn how to use a ventilator by tomorrow morning, for free, from the comfort of your home!

If you’ve had limited experience ventilating patients (or if it’s been a long time since you’ve done so), you might be concerned about making things worse for patients who are already critically ill.
27th Mar 2020 • 3m read

Simplifying Fick's law and lung gas exchange

In this video, you'll learn about the impact of diffusing capacity and other factors that affect gas transfer across membranes, as well as how this relates to respiratory pathologies such as emphysema and pulmonary fibrosis.
24th Mar 2020 • 3m read

How to calculate the fractional concentration of gases in a mixture

In this video, from our Blood Gas Analysis Essentials course, we'll take a deep dive into the fractional concentration of gases and how to calculate this important value.
20th Mar 2020 • 3m read