A nurse cares for a patient who has a serum potassium of 7.5 mEq/L and is exhibiting cardiovascular changes. Which should the nurse implement first?

Provide a heart healthy low potassium diet

Prepare to administer sodium polystyrene sulfate 15g by mouth

Prepare the patient for hemodialysis treatment

Prepare to administer dextrose 20% and 10 units of regular insulin IV push

Answer and Explanation

The Correct Answer is D

A. Provide a heart-healthy low-potassium diet:

While a heart-healthy low-potassium diet is essential for managing chronic hyperkalemia and preventing future occurrences, it is not the first intervention to implement in a patient with a serum potassium level of 7.5 mEq/L and exhibiting cardiovascular changes. The effects of dietary changes on serum potassium levels are gradual and may take days to have a significant impact. In an acute situation like this, immediate interventions are needed to rapidly lower potassium levels and address the associated cardiovascular risks.

B. Prepare to administer sodium polystyrene sulfate 15g by mouth:

Sodium polystyrene sulfate is a medication used to exchange sodium for potassium in the gastrointestinal tract, effectively lowering serum potassium levels over hours to days. While it is a valid treatment for hyperkalemia, its onset of action is not immediate enough to address the urgent cardiovascular changes seen in severe hyperkalemia. Therefore, it is not the first-line intervention in this scenario.

C. Prepare the patient for hemodialysis treatment:

Hemodialysis is an effective method for rapidly lowering serum potassium levels in cases of severe hyperkalemia. However, it is a more invasive and time-consuming procedure that requires preparation, including vascular access and dialysis setup. It is typically reserved for situations where other interventions have failed or in patients with severe or refractory hyperkalemia. In the context of this scenario, where the patient has a serum potassium level of 7.5 mEq/L and is exhibiting cardiovascular changes, hemodialysis may be considered if initial interventions are not successful, but it is not the first action to implement.

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Correct Answer is D

Explanation

A. Body mass index (BMI) of 19:

A BMI of 19 falls within the normal weight range. While obesity (high BMI) is a known risk factor for surgical complications, including SSIs, having a lower BMI (underweight) like 19 may not directly increase the risk of SSIs. However, extreme malnutrition or low BMI due to underlying health conditions could potentially impact wound healing and immune function, indirectly contributing to infection risk.

B. History of deep vein thrombosis (DVT):

A history of deep vein thrombosis is a risk factor for surgical complications, including SSIs. Patients with a history of DVT may have impaired circulation or underlying vascular issues, which can affect tissue perfusion, wound healing, and increase the risk of infections.

C. Aged 55 years old:

Age is a risk factor for surgical complications, including SSIs. Older adults, typically defined as those aged 65 and above, may have reduced immune function, slower wound healing, and underlying health conditions that contribute to infection risk. While 55 years old is not considered advanced age in terms of surgical risk, older age in general is associated with a higher risk of complications.

D. Type 2 diabetes mellitus:

Type 2 diabetes mellitus is a significant risk factor for SSIs. Diabetes can impair immune function, delay wound healing, and increase susceptibility to infections. Poorly controlled blood sugar levels in diabetic patients can further exacerbate the risk of SSIs post-surgery.

A. A 60 year old client with gastritis B. A 20 year old client with closed tibia fracture C. A 55 year old client taking an ACE inhibitor D. A 35 year old client receiving chemotherapy

Correct Answer is D

Explanation

A. A 60-year-old client with gastritis:

Gastritis is inflammation of the stomach lining and typically does not directly increase the risk of skin infections. However, if the gastritis is due to an underlying condition that affects the immune system, such as an autoimmune disorder, the client may have a slightly higher risk of infections, including skin infections, compared to a healthy individual of the same age. Overall, gastritis alone is not a significant risk factor for skin infections compared to the other options.

B. A 20-year-old client with a closed tibia fracture:

A closed tibia fracture refers to a broken shinbone that does not break the skin. While fractures themselves do not necessarily increase the risk of skin infections, they can indirectly contribute to infection risk if there are complications such as open wounds, surgical procedures, or prolonged immobilization. In this case, because the fracture is closed and presumably not complicated by open wounds or surgery, this client is not significantly prone to skin infections compared to the other options.

C. A 55-year-old client taking an ACE inhibitor:

ACE (angiotensin-converting enzyme) inhibitors are medications commonly used to treat conditions like high blood pressure and heart failure. While these medications can cause side effects like a dry cough or skin rash in some individuals, they do not directly increase the risk of skin infections. Unless the client experiences a severe allergic reaction or develops a rash that becomes infected, the use of ACE inhibitors alone is not a major risk factor for skin infections compared to the other options.

D. A 35-year-old client receiving chemotherapy:

Chemotherapy is a treatment for cancer that works by targeting rapidly dividing cells, including cancer cells but also affecting some healthy cells like those in the bone marrow responsible for producing white blood cells. As a result, chemotherapy can significantly weaken the immune system, leading to a higher risk of infections, including skin infections. Patients undergoing chemotherapy are particularly susceptible to bacterial, fungal, and viral infections due to their compromised immune response. Therefore, the 35-year-old client receiving chemotherapy is the most prone to skin infections among the options given due to their weakened immune system.

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A nurse cares for a patient who has a serum potassium of 7.5 mEq/L and is exhibiting cardiovascular changes. Which should the nurse implement first?

Nursing Test Bank

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