Protocol-driven replacement
Protocol-driven replacement protocols are evidence-based tools to give nurses the ability to replace low electrolyte levels in a safe and efficient manner. The electrolytes are replaced according to a goal level set by the provider and kidney function (GFR level). A sliding scale level is used to determine the amount of replacement needed.
Here are some practice questions for electrolyte replacement:
The patient is NPO for a procedure and is on the potassium replacement protocol. The goal for the patient is K of 3.5. Morning labs are K of 3.3 and GFR > 60.
The orders are as follows:
Replace potassium with the following sliding scales. The oral route is preferred if the patient is able to take orals.
For GFR > 60 OR
| Administer KCl IVPB (if NPO): | Administer KCl orally (if taking po): |
| 0.5 or more from goal –
10 mEq /hr for 6 doses |
0.5 or more from goal—
40 mEq q4h x2 doses |
| 0.3-0.4 from goal –
10 mEq /hr for 4 doses |
0.3-0.4 from goal—
20 mEq q4h x2 doses |
| 0.1-0.2 from goal –
10 mEq /hr for 2 doses |
0.1-0.2 from goal –
20 mEq x1 dose |
Recheck potassium 4 hours after the replacement is completed.
1) Indicate the amount and how many doses of IV or PO the nurse will administer? __________mEq every ______ hr(s) X__________doses (IV or po) circle
2) The patient has had the procedure and has resumed a diet. The recheck potassium 4 hours after the initial replacement is 3.0. Indicate the amount and how many doses the nurse will administer? __________mEq every ______ hr(s) X__________doses (IV or po) circle


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