When completing a neurological assessment, which cranial nerves are tested within the mouth?

III, IV, VIII

III, II, VI

IX, X, XII

I, I, III

Answer and Explanation

The Correct Answer is C

A. Cranial nerves III, IV, and VIII are not involved in mouth functions; they primarily deal with eye movements and hearing.
B. Cranial nerves III, II, and VI are involved in vision and eye movement but not in mouth functions.
C. Cranial nerves IX (glossopharyngeal), X (vagus), and XII (hypoglossal) are all tested through functions such as swallowing, speech, and movement of the tongue, which occur in the mouth.
D. Option D incorrectly lists cranial nerve I twice; cranial nerve I (olfactory) is related to the sense of smell, not the mouth.

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Correct Answer is ["B","C","E"]

Explanation

A. The diaphragm of the stethoscope is used for high-pitched sounds, such as lung and normal heart sounds, not low-pitched sounds.

B. The binaural (earpieces) should fit snugly in the ears to ensure proper sound transmission and clarity.

C. Short tubing provides more accurate sounds by minimizing sound distortion, making it ideal for clinical use.

D. The bell of the stethoscope is used for low-pitched sounds, such as heart murmurs, not high-pitched sounds.

E. The stethoscope works by blocking out environmental sounds to help the user focus on internal body sounds.

A. Metabolic alkalosis B. Respiratory alkalosis C. Respiratory acidosis D. Metabolic acidosis

Correct Answer is C

Explanation

A. Metabolic alkalosis is characterized by a high pH and elevated bicarbonate levels, which is not present in these results.

B. Respiratory alkalosis would present with an increased pH and decreased PaCO2, which does not apply here.

C. The low pH (7.12) indicates acidemia, and the elevated PaCO2 (90 mm Hg) suggests hypoventilation and respiratory acidosis due to CO2 retention. The bicarbonate level is within normal limits, further supporting respiratory acidosis.

D. Metabolic acidosis would be indicated by a low pH and low bicarbonate levels; however, the bicarbonate is normal in this case, ruling out metabolic acidosis.

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When completing a neurological assessment, which cranial nerves are tested within the mouth?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

The nurse is teaching a group of unlicensed assistive personnel about the stethoscope. Which statements about the stethoscope are appropriate for the nurse to include in the teaching session? (Select all that apply.)

Correct Answer is ["B","C","E"]

Explanation

A client who is found unresponsive has arterial blood gases drawn, and the results indicate the following: - pH is 7.12 (normal range: 7.35-7.45) - PaCO2 is 90 mm Hg (normal range: 35-45) - HCO3- is 22 mEq/L (normal range: 22-26) The nurse interprets the results as indicating which condition?

Correct Answer is C

Explanation

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