The epiglottis:

is located within the pleural cavities

is innervated by the phrenic nerve

Prevents food and water from getting into the respiratory passages

Is a tube that connects the pharynx and the middle ear

Answer and Explanation

The Correct Answer is C

A. is located within the pleural cavities: it is part of the larynx, not the lungs.

B. is innervated by the phrenic nerve: phrenic nerve innervates the diaphragm, not the epiglottis.

C. Prevents food and water from getting into the respiratory passages: it acts as a flap that closes the trachea during swallowing.

D. Is a tube that connects the pharynx and the middle ear: that is the Eustachian tube.

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Correct Answer is C

Explanation

A. The patient has hypotension: Hypotension does not directly cause use of accessory muscles.

B. The patient is breathing normally, using the normal muscles of inspiration and expiration: Normal breathing uses the diaphragm and intercostals, not accessory muscles like the sternocleidomastoid.

C. The patient is having difficulty breathing: Use of accessory muscles at rest indicates respiratory distress or difficulty in breathing.

D. The patient has hypertension: Hypertension is not directly related to accessory muscle use during breathing.

A. 90-95% B. 95-100% C. 86-89% D. 80-85%

Correct Answer is B

Explanation

A. 90-95%: acceptable in some chronic conditions, but not the ideal normal.

B. 95-100%: this is the normal range for oxygen saturation in healthy adults.

C. 86-89%: indicates hypoxemia.

D. 80-85%: severely hypoxic, needs medical attention.

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The epiglottis:

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

You notice that a client's sternocleidomastoid muscle (an accessory respiratory muscle) is contracting with respiration while the patient is at rest. What should the nurse conclude based on this observance?

Correct Answer is C

Explanation

What is the normal O2 saturation for a healthy adult?

Correct Answer is B

Explanation

Using the provided diagram, identify the structure labeled as #6.

Inhaled air is first warmed and moistened by the:

The bronchi, bronchioles, and alveoli are:

Which of the following is concerned with the exchange of the respiratory gases?

Using the provided diagram, identify the structure labeled as #8.

Which of the following are reasons that people breath more rapidly when exercising? Select all that apply.

If a patient has apnea, they are:

An increase in blood _____ is most likely to increase the rate of breathing.