When the nurse is checking the laboratory data for a patient...

When the nurse is checking the laboratory data for a patient taking spironolactone (Aldactone), which result would be a potential concern? a Serum sodium level of $140 \mathrm{mEq} / \mathrm{L}$ b Serum calcium level of $10.2 \mathrm{mg} / \mathrm{dL}$ c Serum potassium level of $5.8 \mathrm{mEq} / \mathrm{L}$ d Serum magnesium level of $2.0 \mathrm{mg} / \mathrm{dL}$

When the nurse is checking the laboratory data for a patient taking spironolactone (Aldactone), which result would be a potential concern?
a Serum sodium level of $140 \mathrm{mEq} / \mathrm{L}$
b Serum calcium level of $10.2 \mathrm{mg} / \mathrm{dL}$
c Serum potassium level of $5.8 \mathrm{mEq} / \mathrm{L}$
d Serum magnesium level of $2.0 \mathrm{mg} / \mathrm{dL}$

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Key Concepts

Hyperkalemia

Hyperkalemia is an electrolyte imbalance characterized by an abnormally high level of potassium in the blood. It is a serious condition because elevated potassium can disrupt cardiac electrical activity, increasing the risk of arrhythmias and potentially life?threatening cardiac complications.

Potassium-Sparing Diuretics

Potassium-sparing diuretics, such as those that antagonize aldosterone receptors, work by reducing sodium reabsorption and limiting potassium excretion in the kidneys. This mechanism helps in managing conditions like hypertension and heart failure, but it also predisposes patients to hyperkalemia, making careful monitoring essential.

Electrolyte Monitoring

Electrolyte monitoring involves regularly checking blood levels of crucial ions like potassium, sodium, calcium, and magnesium to ensure they remain within normal ranges. This is particularly important for patients on medications like potassium-sparing diuretics, where imbalances can lead to significant clinical concerns and complications.

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