The nurse is renewing laboratory results for a client admitted for renal failure and notes the following: Sodium 144 mEq/L, Potassium 6.6 mEq/L. Which of the following should be the priority intervention?

Obtain a 12 lead ECG

Request an electroencephalogram (FEC)

Assess for Chvostek's sign

Obtain a chest X-ray.

Answer and Explanation

The Correct Answer is A

A) Obtain a 12-lead ECG:
The client’s potassium level of 6.6 mEq/L is significantly elevated which places the patient at risk for cardiac arrhythmias. Elevated potassium levels can cause dangerous changes in the electrical activity of the heart, leading to peaked T waves, widened QRS complexes, and even cardiac arrest. A 12-lead ECG is necessary to assess the heart's electrical activity and to identify any potential arrhythmias

B) Request an electroencephalogram (EEG):
An EEG is used to assess brain activity and is typically indicated for conditions such as seizures or epilepsy. This client’s laboratory findings do not suggest a neurological concern that would warrant an EEG.

C) Assess for Chvostek's sign:
Chvostek's sign is used to assess for hypocalcemia or tetany, where a twitching of the facial muscles occurs upon tapping the facial nerve. However, the client’s primary issue here is elevated potassium levels, which are a more immediate concern than hypocalcemia. Hyperkalemia can have more severe and urgent consequences, particularly for the heart, so Chvostek's sign is not the priority at this time.

D) Obtain a chest X-ray:
A chest X-ray is not indicated based on the client’s current electrolyte imbalance or renal failure status. While a chest X-ray may be useful for various other concerns, the client’s elevated potassium level is the primary issue, and the priority intervention is to assess and manage the potential for cardiac arrhythmias with a 12-lead ECG.

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Free Nursing Study Resources

Correct Answer is A

Explanation

A. "Following up with your dentist frequently will be important.":
This is the correct and important advice to give. Phenytoin (Dilantin), an anticonvulsant, can cause gum overgrowth (gingival hyperplasia), which makes it important for the patient to have regular dental check-ups. Poor oral hygiene combined with gingival hyperplasia can increase the risk of infection and other oral health issues. Therefore, advising the patient to follow up frequently with a dentist is essential to manage this side effect.

B. "Take an antacid with the medication if indigestion occurs.":
advice. Taking an antacid with phenytoin can interfere with its absorption. Antacids, especially those containing aluminum or magnesium, can reduce the effectiveness of phenytoin, leading to suboptimal therapeutic levels. It’s important to separate phenytoin from antacids by at least 2 hours to avoid this interaction. Therefore, antacids should not be used with phenytoin to manage indigestion.

C. "Alcoholic beverages should be limited to 1-2 per day while taking phenytoin.":
This is inaccurate advice. Alcohol can significantly affect the metabolism of phenytoin, increasing the risk of both toxicity and reduced effectiveness. Alcohol may lower the seizure threshold and interfere with the therapeutic effect of phenytoin, especially in higher amounts. Therefore, it is generally recommended that patients taking phenytoin avoid alcohol altogether, or at the very least limit consumption significantly and discuss it with their healthcare provider.

D. "Phenytoin may turn your urine orange.":
information. Phenytoin does not cause urine to turn orange. Urine discoloration can occur with some medications (like rifampin, for example), but not with phenytoin. This statement could cause unnecessary confusion for the patient. It is essential to provide accurate information to avoid misconceptions about medication side effects.

A. Complete blood count (CBC) B. Electroencephalogram (EEG) C. Computed tomography (CT) scan D. Chest radiograph (chest x-ray)

Correct Answer is C

Explanation

A) "Complete blood count (CBC)":
. A CBC can provide important information about the patient's overall health, including potential signs of infection, anemia, or other underlying conditions. However, in the context of acute neurological symptoms such as left-sided weakness, CT scan is the priority test because it will help quickly determine if there is an acute neurological event, such as a stroke or hemorrhage. While a CBC might be useful later to assess for underlying
conditions or potential causes, it is not the first test to perform in this scenario.

B) "Electroencephalogram (EEG)":
. An EEG is primarily used to diagnose and assess seizure activity or epileptic disorders. While seizures can cause neurological deficits, the patient's sudden onset of left-sided weakness is more suggestive of a stroke, not a seizure. The priority is to rule out stroke with a CT scan, not to assess for seizures with an EEG.

C) "Computed tomography (CT) scan":
. A CT scan is the first diagnostic test to perform in patients with acute neurological deficits such as sudden-onset weakness, especially when a stroke is suspected. A CT scan can quickly detect if the cause is an ischemic stroke (lack of blood flow due to a clot) or a hemorrhagic stroke (bleeding in the brain). Time is critical in the management of stroke, as early intervention with treatments like tPA (tissue plasminogen activator) for ischemic stroke can greatly improve outcomes. The CT scan can help determine if the patient is a candidate for thrombolysis or if other interventions are needed.

D) "Chest radiograph (chest x-ray)":
. While a chest x-ray can be useful for diagnosing respiratory issues, such as pneumonia or congestion, it is not helpful in evaluating the cause of acute neurological symptoms like left-sided weakness. The priority test is a CT scan to evaluate the brain and rule out conditions like stroke or hemorrhage, not a chest x-ray.

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The nurse is renewing laboratory results for a client admitted for renal failure and notes the following: Sodium 144 mEq/L, Potassium 6.6 mEq/L. Which of the following should be the priority intervention?

Nursing Test Bank

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