Which is used in a technique to determine respiratory volumes?Multiple choice question.ElectroencephalogramSpirometerEchocardiogramSphygmomanometer

Step 1: Break Down the Problem

To answer the question, we need to identify which of the listed options is specifically used to measure respiratory volumes.

Step 2: Relevant Concepts

• Electroencephalogram (EEG): Measures electrical activity in the brain.
• Spirometer: A device used to measure the volume of air inhaled and exhaled by the lungs.
• Echocardiogram: Uses ultrasound to visualize the heart.
• Sphygmomanometer: Measures blood pressure.

Step 3: Analysis and Detail

From the definitions:

1. The Spirometer is recognized as the tool for measuring respiratory volumes, making it specifically relevant to the question.
2. Other devices listed (EEG, echocardiogram, and sphygmomanometer) serve different bodily functions unrelated to respiratory volume measurement.

Step 4: Verify and Summarize

Upon review, the only device used for the technique of determining respiratory volumes is the spirometer.

Final Answer

Spirometer is the correct answer as it measures respiratory volumes.