Human Anatomy and Physiology : Help with Evaluation Methods for the Respiratory System

Study concepts, example questions & explanations for Human Anatomy and Physiology

varsity tutors app store varsity tutors android store

Example Questions

Example Question #1 : Help With Evaluation Methods For The Respiratory System

Which of the following is not typically used as part of a pulmonary function test (spirometric test)?

Possible Answers:

Inhaler

Laryngoscope

Nitrogen balloon or Nitro bulb

Body plethysmograph

Tracer gas

Correct answer:

Laryngoscope

Explanation:

Pulmonary function tests or spirometric tests are tests designed to measure a host of breathing functions. Since values vary depending on body position, time of day, and other factors, most metrics have a high tolerance for variance and typically require a person to score below 80% or above 120% of their expected values before a result is considered "abnormal". These tests are most often employed diagnostically, but may also be used to check up on the progress of a treatment program.

A laryngoscope is used to view the larynx and epiglottis, but does not provide quantitative functional data.

Example Question #2 : Help With Evaluation Methods For The Respiratory System

Which of the following measurements is not typically taken during a pulmonary function test (spirometric test)?

Possible Answers:

Total lung capacity (TLC)

Residual volume (RV)

Forced expiratory flow

Oxygen saturation (O2Sat)

Expiratory reserve volume (ERV)

Correct answer:

Oxygen saturation (O2Sat)

Explanation:

Spirometric tests typically measure between 10-20 metrics of respiratory health, including airflow, intake/outtake, and total volume. Oxygen saturation is a measure of the blood's ability to bond oxygen to hemoglobin, and is typically measured during one or more blood tests.

Example Question #3 : Help With Evaluation Methods For The Respiratory System

When one interprets images or performs a physical exam, what landmark can be used to determine the level of the carina (division point of trachea)?

Possible Answers:

4th-5th intercostal space

None of these

T5/T6 intervertebral disk level

T4/T5 intervertebral disk level

Sternum

Correct answer:

T4/T5 intervertebral disk level

Explanation:

The carina seems to be consistently located between the T4/T5 intervertebral disk level in most people. These vertebral levels are used as landmarks to identify the carina and, consequently, the trachea above it and the left and right primary bronchi below it.

Learning Tools by Varsity Tutors

Incompatible Browser

Please upgrade or download one of the following browsers to use Instant Tutoring: