How Can You Ensure Reliability When Measuring the Expiratory Reserve

question 36

Multiple Choice

How can you ensure reliability when measuring the expiratory reserve volume (ERV) ?

• A) Have the patient perform the maneuver twice, ensure consistency, and then take the best value.
• B) Have the patient perform the maneuver three times, and then take the last value.
• C) Have the patient perform the maneuver twice, ensure consistency, and then take the mean value.
• D) Have the patient perform the maneuver until he or she becomes fatigued, and then take the last value.

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Definitions:

Normally Distributed

Refers to a probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.

Mean

The average of a set of values, calculated by dividing the sum of all values by the number of values.

Standard Deviation

An indicator used to determine the degree of scatter or deviation present in a group of data points.

Normally Distributed

A type of continuous probability distribution for a real-valued random variable where the data is symmetrically distributed, forming a bell-shaped curve.