During an assessment of a patient's cranial nerves, the nurse finds a lack of blink in the right eye with corneal reflect, intact ability to sense light touch on the face, and loss of movement with facial features on the right side. This would indicate dysfunction of which of the following cranial nerves (CNs)

Motor component of CN X and sensory component of CN VII

Motor and sensory component of CN XI

Motor component of CN VII

Motor component of CN IV

Answer and Explanation

The Correct Answer is C

A. Motor component of CN X and sensory component of CN VII: CN X (vagus) controls muscles of the pharynx and larynx, and CN VII (facial) has both motor and sensory components. However, loss of facial movement and absence of blink specifically indicate a problem with the motor function of CN VII rather than CN X.

B. Motor and sensory component of CN XI: CN XI (accessory nerve) controls the sternocleidomastoid and trapezius muscles. Dysfunction would present as difficulty with shoulder shrug or head rotation, not facial movement or blinking.

C. Motor component of CN VII: CN VII (facial nerve) controls muscles of facial expression, including blinking and movement of facial features. The findings of absent blink, intact sensation, and facial muscle weakness on one side indicate a motor deficit of CN VII.

D. Motor component of CN IV: CN IV (trochlear nerve) controls the superior oblique muscle of the eye. Dysfunction would affect eye movement, specifically downward and inward gaze, rather than facial expression or blink reflex.

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Correct Answer is B

Explanation

A. pulsations of the inferior vena cava: The inferior vena cava returns deoxygenated blood to the heart and does not typically create visible pulsations on abdominal inspection. Its flow is low pressure, making it unlikely to generate the observed movement.

B. normal abdominal aortic pulsations: The abdominal aorta lies midline between the xiphoid process and umbilicus, and mild pulsations can often be seen in thin individuals. These visible movements are usually normal and reflect the forward flow of blood through the aorta.

C. increased peristalsis from a bowel obstruction: Bowel obstruction may cause visible peristaltic waves across the abdomen, but these movements are more lateral and wave-like rather than rhythmic pulsations. They are not confined to the midline region.

D. pulsations of the renal arteries: The renal arteries branch off laterally from the abdominal aorta and are not visible as midline pulsations. They supply blood directly to the kidneys and do not produce surface movements detectable on inspection.

A. Increase in the number of rugae over the scrotal sac B. Enlargement of the testes and scrotum C. Decrease in the size of the penis D. Change in scrotal colour

Correct Answer is C

Explanation

A. Increase in the number of rugae over the scrotal sac: With aging, there is typically a decrease in rugae rather than an increase. The scrotal skin tends to become smoother and less elastic due to reduced connective tissue and hormonal changes.

B. Enlargement of the testes and scrotum: Aging is associated with a gradual decrease in testicular size and firmness. Enlargement is not expected and may instead suggest pathological conditions such as hydrocele, tumor, or hernia.

C. Decrease in the size of the penis: A reduction in penile size, especially in length and thickness, is an expected age-related change. This occurs due to decreased testosterone levels, reduced blood flow, and loss of connective tissue elasticity.

D. Change in scrotal colour: While vascular changes may lead to some increased pigmentation or visible veins, significant changes in scrotal color are not considered a standard age-related finding. Pronounced discoloration should prompt further evaluation.

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Naxlex Comprehensive Predictor Exams

While examining a patient, the nurse observes abdominal pulsations between the xiphoid and umbilicus. The nurse would suspect that these are:

Correct Answer is B

Explanation

Which age related changes are expected in a male genitourinary exam?

Correct Answer is C

Explanation

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Which of the following changes may occur in the gastrointestinal system of an aging adult?

During an inspection of the vagina, the nurse would expect to see what at the end of the vagina?

When performing the corneal light reflex assessment, the nurse notes that the light is reflected at the 2 o'clock position on each eye. The nurse would:

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