**Core Concept**
Loop diuretics are a class of medications that inhibit the sodium-potassium-chloride (Na+K+2Cl-) cotransporter in the thick ascending limb of the loop of Henle in the kidneys. This inhibition leads to increased sodium, potassium, and chloride excretion, resulting in diuresis.

**Why the Correct Answer is Right**
Loop diuretics, such as furosemide, bumetanide, and torsemide, can cause hypocalcemia and hypomagnesemia due to the increased excretion of these ions. The inhibition of the Na+K+2Cl- cotransporter leads to a decrease in the reabsorption of calcium and magnesium, resulting in their increased excretion in the urine. This can lead to hypocalcemia and hypomagnesemia, which can cause muscle cramps, tetany, and other symptoms.

**Why Each Wrong Option is Incorrect**
**Option A:** Loop diuretics are indeed called "high ceiling" diuretics because they have a high ceiling effect, meaning that they can cause a significant increase in urine production at low doses, but further increases in dose may not result in proportionally greater increases in urine production.

**Option B:** Loop diuretics do act on the Na+K+2Cl- symporter, which is located in the thick ascending limb of the loop of Henle. This is the primary mechanism by which loop diuretics exert their diuretic effect.

**Option C:** Loop diuretics can actually cause hypouricemia, not hyperuricemia. The increased excretion of sodium and chloride in the urine can lead to a decrease in the reabsorption of uric acid, resulting in hypouricemia.

**Clinical Pearl / High-Yield Fact**
It's essential to remember that loop diuretics can cause electrolyte imbalances, particularly hypocalcemia and hypomagnesemia. This can lead to muscle cramps, tetany, and other symptoms, which can be prevented or treated by monitoring electrolyte levels and administering calcium and magnesium supplements as needed.

**✓ Correct Answer: D. Loop diuretics lead to hypercalcemia and hypomagnesimia**