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?

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.

A) "Encourage strict bed rest with turning and repositioning every 2 hours":
. For clients with peripheral arterial disease (PAD), strict bed rest is not recommended unless the client is in severe pain or experiencing complications like ulcers or gangrene. In PAD, exercise and mobility are essential for improving blood flow and reducing symptoms. Prolonged immobility could worsen circulation and lead to complications like muscle atrophy. Therefore, encouraging gentle movement and activity, like walking or repositioning, is typically more beneficial than prolonged bed rest.

B) "Have the client 'dangle' their legs several times per day and when pain occurs":
. For clients with PAD, dangling the legs can be helpful in alleviating pain and discomfort. When the client dangles their legs, gravity helps to increase blood flow to the lower extremities, which can provide temporary relief from symptoms like intermittent claudication (pain caused by insufficient blood flow). It is important to balance this with the advice to avoid elevating the legs, as elevating them above the heart level may decrease arterial perfusion, worsening symptoms.

C) "Have the client elevate their legs above heart level when pain occurs":
. Elevating the legs above the heart level in clients with PAD may worsen symptoms. In PAD, blood flow to the legs is already compromised, and elevating the legs above the heart can further reduce arterial blood flow to the lower extremities, increasing pain and discomfort. Instead, dangling the legs or lying flat with the legs at heart level is generally better for improving circulation.

D) "Have the client use ice packs to relieve lower extremity pain":
. Applying ice packs is not recommended for clients with PAD, as cold can cause vasoconstriction, further reducing blood flow to already compromised tissues. Cold therapy may increase pain and lead to tissue damage in individuals with reduced circulation. The nurse should instead focus on strategies that promote blood flow, such as encouraging gentle exercise, dangling the legs, or using warmth (in some cases) to improve circulation.