An acute care nurse is caring for an adult client who is undergoing evaluation for a possible brain tumor. While performing a neurological examination, which of following findings is the earliest indicator of the client's cerebral status?

Pupil response

Deep tendon reflexes

Muscle strength

Level of consciousness

Answer and Explanation

The Correct Answer is D

A. Pupil response:

Pupil response refers to the reaction of the pupils to light stimulus. The pupils should normally constrict when exposed to bright light and dilate in dim light. Changes in pupil size or reactivity can indicate alterations in neurological function. For example, unequal or non-reactive pupils (anisocoria or fixed pupils) can be indicative of dysfunction in the cranial nerves or brainstem. However, while pupil response is an important aspect of neurological assessment, it may not always be the earliest indicator of cerebral status changes.

B. Deep tendon reflexes:

Deep tendon reflexes are involuntary muscle contractions in response to stretching of a muscle tendon. These reflexes are assessed by tapping the tendon with a reflex hammer, eliciting a rapid and brief muscle contraction. Changes in deep tendon reflexes can provide information about the integrity of the peripheral nervous system and spinal cord. However, alterations in deep tendon reflexes may occur secondary to changes in cerebral function and are typically assessed along with other neurological signs.

C. Muscle strength:

Muscle strength refers to the force generated by muscles during voluntary movement. It is typically assessed by asking the client to perform specific movements against resistance or by testing the strength of individual muscle groups using standardized scales (e.g., Medical Research Council scale). Changes in muscle strength can occur due to neurological or musculoskeletal conditions. While weakness or paralysis can result from lesions affecting the upper motor neurons (e.g., strokes or spinal cord injuries), alterations in muscle strength may not always be the earliest indicator of cerebral status changes.

D. Level of consciousness:

The level of consciousness refers to the degree of awareness and alertness exhibited by the client. It is assessed by evaluating the client's responsiveness, orientation, and ability to follow commands. Changes in the level of consciousness, such as confusion, lethargy, stupor, or coma, can indicate alterations in cerebral function and are often the earliest indicators of neurological dysfunction. Assessing the level of consciousness is a critical component of neurological examination and helps guide further assessment and management of clients with suspected brain tumors or other neurological conditions.

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Free Nursing Study Resources

Correct Answer is C

Explanation

A. "I will notify my provider before taking any other medications."

This statement demonstrates understanding of the importance of consulting the provider before taking any other medications. It is correct because phenytoin may interact with other drugs, so notifying the provider is essential to avoid potential interactions.

B. "I have made an appointment to see my dentist next week."

This statement indicates that the client understands the importance of dental care while taking phenytoin. Phenytoin can cause gum overgrowth (gingival hyperplasia), so regular dental check-ups are recommended to monitor oral health. This statement is correct.

C. "I will take this medication with meals."

This statement suggests that the client plans to take phenytoin with meals. However, phenytoin should generally be taken on an empty stomach to enhance absorption, unless gastrointestinal upset occurs. Therefore, this statement indicates a need for further teaching.

D. "I'll be glad when my seizures stop so I can quit taking this medicine."

This statement reflects a misconception about the management of epilepsy. Phenytoin is typically used as a long-term treatment to prevent seizures, not as a short-term solution to stop seizures. Therefore, this statement indicates a need for further education about the chronic nature of epilepsy and the need for ongoing medication adherence.

E. “I’ll take this medication before meals.”

This statement correctly indicates the timing of phenytoin administration before meals. Taking phenytoin before meals helps enhance absorption and minimize the risk of gastrointestinal side effects. Therefore, this statement is correct.

Correct Answer is ["10"]

Explanation

To calculate the dose of valproic acid oral solution, the nurse should use the following formula:

Dose (mL) = Ordered dose (mg) / Concentration (mg/mL) x Volume (mL)

Plugging in the values from the question, we get:

Dose (mL) = 500 mg / (250 mg / 5 mL) x 5 mL

Simplifying, we get:

Dose (mL) = 500 mg / 50 mg x 5 mL

Dose (mL) = 10 mL

Therefore, the nurse should administer 10 of valproic acid oral solution to the patient.

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An acute care nurse is caring for an adult client who is undergoing evaluation for a possible brain tumor. While performing a neurological examination, which of following findings is the earliest indicator of the client's cerebral status?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is reinforcing teaching with a client who has a new prescription for phenytoin. The nurse should recognize that which of the following statements by the client indicates a need for further teaching?

Correct Answer is C

Explanation

A nurse is preparing to administer valproic acid 500 mg PO. Available is valproic acid oral solution 250 mg/5 mL. How many mL should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Correct Answer is ["10"]

Explanation

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