Which statement best describes safe potassium administration in hypokalemia?

Which statement best describes safe potassium administration in hypokalemia?

• A. Administer IV potassium bolus for rapid correction.
• B. Monitor ECG and avoid IV potassium bolus.
• C. Ignore ECG changes if symptoms improve.
• D. Only give oral potassium, never IV.

Answer: (B)

Safe potassium replacement relies on careful heart monitoring and slow, controlled administration. In hypokalemia, the heart’s electrical activity is highly sensitive to potassium levels, so you must continuously monitor the ECG to detect dangerous arrhythmias as potassium is corrected. Giving potassium as an IV bolus can cause a rapid, large rise in serum potassium and can trigger cardiac arrest, so it must be avoided. IV potassium is reserved for a slow infusion at a regulated rate (often limited to about 10 mEq per hour or less depending on setting) with monitoring, while oral potassium is preferred for milder cases when feasible. If ECG changes appear or potassium remains low despite initial therapy, adjustments are made carefully, not by rushing the dose. This approach prioritizes safety by watching the rhythm and preventing rapid, uncontrolled shifts in potassium.

Safe potassium replacement relies on careful heart monitoring and slow, controlled administration. In hypokalemia, the heart’s electrical activity is highly sensitive to potassium levels, so you must continuously monitor the ECG to detect dangerous arrhythmias as potassium is corrected. Giving potassium as an IV bolus can cause a rapid, large rise in serum potassium and can trigger cardiac arrest, so it must be avoided. IV potassium is reserved for a slow infusion at a regulated rate (often limited to about 10 mEq per hour or less depending on setting) with monitoring, while oral potassium is preferred for milder cases when feasible. If ECG changes appear or potassium remains low despite initial therapy, adjustments are made carefully, not by rushing the dose. This approach prioritizes safety by watching the rhythm and preventing rapid, uncontrolled shifts in potassium.