Pulse Oximeter | How to Use It? How does Pulse Oximetry Work?

Summary

This video offers an in-depth look at pulse oximeters, explaining how they non-invasively measure oxygen saturation and heart rate in arterial blood. It details the device's operation, emphasizing the importance of accurate readings for health assessments. The video also discusses the significance of normal ranges for oxygen saturation and heart rate, advising viewers to seek medical attention if their readings consistently fall outside these parameters. Links to recommended pulse oximeters for home use are provided.

Takeaways

• 😀 A pulse oximeter is a non-invasive device used to monitor a patient's oxygen saturation and heart rate.
• 🌡️ It measures the level of oxygen in arterial blood by shining a light through the finger and detecting the amount of light absorbed.
• ❤️ The device provides a reading of oxygen saturation, known as SpO2, and automatically calculates the heart rate.
• 👩‍⚕️ Healthcare professionals use pulse oximeters to monitor patients with cardiopulmonary issues to assess their cardiopulmonary status.
• 🏠 Patients with chronic respiratory conditions may be advised to keep a pulse oximeter at home for continuous monitoring.
• 🔍 The device compensates for ambient light and finger size to ensure accurate readings, using a reference curve for calibration.
• 🤞 To get reliable readings, the device should be securely clipped onto the finger, minimizing movement and avoiding nail polish.
• 👉 Studies suggest that the middle finger of the right hand provides the most accurate readings, though any finger can be used if the device is secure.
• 🛒 Pulse oximeters can be purchased on Amazon, and it's important to ensure they meet the user's needs, especially for healthcare professionals.
• ⚠️ While using a pulse oximeter is generally safe, inaccurate readings could lead to improper treatment, so it's crucial to follow the manufacturer's guidelines for use.

Q & A

What is a pulse oximeter?

A pulse oximeter is a non-invasive device used to monitor a patient's oxygen saturation and heart rate by clipping onto the finger and providing a reading within seconds.

How does a pulse oximeter work?

Pulse oximeters work by shining a light through the finger, measuring the amount of oxygen in the blood. They detect the difference in wavelengths that go through oxygenated and deoxygenated blood.

Why is it important to monitor oxygen saturation levels?

Monitoring oxygen saturation levels is important because a lack of oxygen in the blood can lead to improper oxygenation of body tissues, which can be hazardous to health and indicate serious pulmonary issues.

What additional feature does a pulse oximeter provide besides oxygen saturation?

In addition to monitoring oxygen saturation, a pulse oximeter also provides a heart rate measurement.

How accurate are pulse oximeters?

Pulse oximeters are generally accurate, but the accuracy can depend on factors like the patient's movement, the absence of nail polish, and the proper placement of the device on the finger.

Which finger is recommended for getting the most accurate reading from a pulse oximeter?

Studies suggest that the middle finger of the right hand provides the best accuracy, with the thumb of the right hand coming in second.

Can you use a pulse oximeter if you have nail polish on?

It is advised to avoid using a pulse oximeter on fingers with nail polish as it can interfere with the light readings and affect the accuracy of the device.

What are the normal ranges for heart rate and oxygen saturation according to the video?

The normal range for heart rate is 60 to 100 beats per minute, and for oxygen saturation, it is 95 to 100%.

What is the term for an abnormally low level of oxygen in the blood?

Hypoxemia is the term used for an abnormally low level of oxygen in the blood, which is treated with supplemental oxygen.

Where can you purchase a pulse oximeter as mentioned in the video?

You can purchase a pulse oximeter on Amazon, and the video provides links to some top recommendations in the description.

What should you do if your pulse oximeter readings consistently fall outside of the normal ranges?

If your pulse oximeter readings consistently fall outside of the normal ranges, it is advisable to seek medical advice or consult with a healthcare professional.