Identifying What Type Shock | Shock (Part 9)

Summary

In this ninth and final lesson of a series on shock, Eddie Watson wraps up the topic by teaching how to identify different types of shock in patients. He introduces a chart comparing hypovolemic, cardiogenic (including obstructive), neurogenic, and septic shock, focusing on vital signs like heart rate, systemic vascular resistance, cardiac output, preload indicators, venous oxygen saturation, and skin appearance. The lesson aims to equip viewers with the tools to differentiate shock types, crucial for guiding appropriate treatment. Watson concludes by encouraging viewers to engage with the content and seek further information on shock and hemodynamics.

Takeaways

• 📚 The lesson is the ninth and final one in a series on shock, aiming to help identify different types of shock in patients.
• 👨‍🏫 The presenter, Eddie Watson, encourages viewers to subscribe to the channel and hit the bell icon for notifications on new lessons.
• 🔍 The lesson uses a chart to compare the four most common types of shock: hypovolemic, cardiogenic (including obstructive), neurogenic, and septic.
• 🚫 Anaphylactic shock is not covered as it is less common and similar to septic shock, with a few differences.
• 📊 The chart compares heart rate, systemic vascular resistance (SVR), cardiac output, preload indicators (CVP/Wedge Pressure), venous oxygen saturation (SVO2), and skin appearance.
• 🩸 Hypovolemic shock is characterized by increased heart rate and SVR, decreased preload indicators, cardiac output, SVO2, and cold clammy skin due to vasoconstriction.
• 💓 Cardiogenic shock features an increased heart rate, initially increased SVR which later hurts the heart, decreased cardiac output, elevated preload indicators, decreased SVO2, and cold clammy skin.
• 🌀 Neurogenic shock is marked by decreased heart rate, decreased SVR due to loss of sympathetic activity, possible decrease in cardiac output, decreased preload indicators, decreased SVO2, and warm dry skin.
• 🦠 Septic shock involves an initial increase in heart rate and cardiac output, profound drop in SVR, hypotension, and fluctuating skin temperature from warm/hot and dry to cold and clammy.
• 📈 The changes in SVO2 in septic shock can initially drop due to hypermetabolic state but later rise as oxygen cannot diffuse across swollen cell barriers.
• 🤝 Eddie Watson concludes the lesson series by hoping the information was useful and encourages feedback, questions, and likes for the channel.

Q & A

What is the purpose of the final lesson in the series on shock?

The purpose of the final lesson is to wrap everything up and provide tools to help identify or differentiate what type of shock a patient is experiencing.

Who is the presenter for the series of lessons on shock?

Eddie Watson is the presenter for the series of lessons on shock.

What are the four most common forms of shock covered in the script?

The four most common forms of shock covered are hypovolemic shock, cardiogenic shock (including obstructive shock), neurogenic shock, and septic shock.

Why is anaphylactic shock not included in the four common forms of shock discussed?

Anaphylactic shock is not included because it is not a very common type of shock encountered, and it often presents similarly to septic shock with a few differences.

What are the key indicators used to differentiate the types of shock?

The key indicators used to differentiate the types of shock include heart rate, systemic vascular resistance (SVR), cardiac output, preload indicators (CVP or wedge pressure), venous oxygen saturation (SVO2), and skin appearance.

How does the body compensate for decreased cardiac output in hypovolemic shock?

In hypovolemic shock, the body compensates by increasing the heart rate and systemic vascular resistance (SVR) to try and maintain perfusion.

What is the typical skin appearance in patients with cardiogenic shock?

Patients with cardiogenic shock typically have cold and clammy skin due to the sympathetic response and vasoconstriction.

How does the heart rate change in neurogenic shock?

In neurogenic shock, the heart rate decreases because the sympathetic innervation of the heart is lost while maintaining parasympathetic activity.

What happens to the systemic vascular resistance (SVR) in septic shock?

In septic shock, there is a profound drop in SVR due to the systemic inflammatory response and the release of mediators, leading to hypotension.

How does the skin appearance differ between early and late stages of septic shock?

In early septic shock, the skin may be warm or hot and dry due to fever and inflammation. In later stages, as the body constricts blood vessels, the skin can become cold and clammy.

What is the significance of the chart presented in the final lesson?

The chart is significant as it helps to compare different types of shock side-by-side, highlighting the differences in the body's responses, which can aid in identifying the underlying cause of shock in a patient.

What is the presenter's hope for the audience after completing the series on shock?

The presenter hopes that the audience found the series useful, gained a good understanding of the various types of shock, and that the information provided will help them in identifying and treating shock in patients.