A group of nursing students are studying the conduction system of the heart. The nursing students should recognize that the pacemaker of the heart is known as
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Answer and Explanation

The Correct Answer is {"dropdown-group-1":"C"}

The pacemaker of the heart is known as the sinoatrial (SA) node. The SA node is a specialized group of cells located in the right atrium of the heart. It generates electrical impulses that initiate each heartbeat and set the rhythm for the entire heart.

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Correct Answer is C

Explanation

A. VI

Cranial Nerve VI is the Abducent Nerve, which controls the movement of the lateral rectus muscle, allowing the eye to move laterally (abduct). Dysfunction of this nerve can cause difficulty in moving the eye outward.

B. V

Cranial Nerve V is the Trigeminal Nerve. It has both sensory and motor functions. Sensory functions include providing sensation to the face, sinuses, and teeth. Motor functions include controlling the muscles used for chewing (mastication).

C. II

Cranial Nerve II is the Optic Nerve. It is purely a sensory nerve responsible for vision. The optic nerve carries visual information from the retina of the eye to the brain.

D. III

Cranial Nerve III is the Oculomotor Nerve. It is primarily a motor nerve but also has some autonomic functions. It controls most of the eye movements (except lateral movement controlled by VI) and regulates the size of the pupil and the shape of the lens in the eye for focusing.

A. Nystagmus in extreme superior gaze B. Slight amount of lid lag when moving the eyes from a superior to an inferior position C. Parallel movement of both eyes D. Convergence of the eyes

Correct Answer is C

Explanation

A. Nystagmus in extreme superior gaze: Nystagmus is an involuntary eye movement and is not a normal finding, especially in extreme superior gaze. Nystagmus can be indicative of neurological issues and requires further evaluation.

B. Slight amount of lid lag when moving the eyes from a superior to an inferior position: Lid lag refers to a delay in the downward movement of the upper eyelid during eye movement. This can be a sign of hyperthyroidism and is not a normal finding.

C. Parallel movement of both eyes: This is the correct answer. During the diagnostic positions test, the nurse should observe parallel movement of both eyes in all directions, indicating normal extraocular muscle function and coordination.

D. Convergence of the eyes: Convergence refers to the inward movement of both eyes when focusing on a close object. While convergence is a normal phenomenon, it is not specifically assessed during the diagnostic positions test, which primarily evaluates the range of motion and coordination of the extraocular muscles.

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A group of nursing students are studying the conduction system of the heart. The nursing students should recognize that the pacemaker of the heart is known as dropdown

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Naxlex Comprehensive Predictor Exams

The nurse is preparing to measure the visual acuity of a client. The nurse should recognize that which of the following cranial nerve should be assessed:

Correct Answer is C

Explanation

The nurse is performing the diagnostic positions test. The nurse recognizes that normal findings from the diagnostic positions test should be which of these results?

Correct Answer is C

Explanation

A nurse documents that the client has a normal pupillary light reflex. The nurse should recognize that this reflex indicates which of the following?

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A group of nursing students are studying the conduction system of the heart. The nursing students should recognize that the pacemaker of the heart is known as
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