**Core Concept**
Hyperkalemia is a condition characterized by an elevated serum potassium level, which can be life-threatening if left untreated. It often presents with characteristic ECG changes, but in this case, the patient has no ECG findings, making it essential to choose the correct treatment.

**Why the Correct Answer is Right**
Calcium gluconate is used to stabilize cardiac membranes in hyperkalemia, particularly when ECG changes are present. However, in a patient with no ECG findings, calcium gluconate does not address the underlying issue of potassium toxicity and is ineffective in preventing cardiac arrest. Its primary action is to counteract the cardiac effects of hyperkalemia, but this is not applicable when no ECG changes are observed. Additionally, calcium gluconate does not reduce potassium levels or promote its excretion.

**Why Each Wrong Option is Incorrect**
**Option A:** Sodium bicarbonate can help shift potassium ions into cells, thereby reducing serum potassium levels. It's particularly useful when there's an associated metabolic acidosis. However, it's not the most effective treatment in this scenario, and its use is not contraindicated.
**Option C:** Glucose with insulin can also promote potassium uptake into cells, effectively reducing serum potassium levels. This combination is an essential treatment for hyperkalemia, especially in patients with insulin resistance.
**Option D:** Resins can help remove potassium from the body by exchanging it for sodium or calcium ions in the gut. This is a useful treatment for hyperkalemia, particularly when oral potassium removal is necessary.

**Clinical Pearl / High-Yield Fact**
In patients with hyperkalemia and no ECG findings, the primary goal is to prevent the development of cardiac complications. Administering calcium gluconate in such cases may provide a false sense of security, as it does not address the underlying issue. Always remember that glucose with insulin and sodium bicarbonate are essential treatments for hyperkalemia, while resins are useful for oral potassium removal.

**✓ Correct Answer: B. Calcium gluconate**