**Core Concept**
Fogarty's catheter is a type of balloon catheter used in surgical procedures to remove thrombi (blood clots) and emboli (foreign particles) from blood vessels. The catheter works by inflating a balloon at the tip, which engages the thrombus or embolus, allowing for its safe removal.

**Why the Correct Answer is Right**
Fogarty's catheter is specifically designed for embolectomy, which is a surgical procedure to remove blood clots or foreign particles from blood vessels. The catheter is typically used during emergency situations, such as acute limb ischemia, to restore blood flow to the affected limb. During the procedure, the catheter is inserted into the affected blood vessel and the balloon is inflated to engage the thrombus, which is then removed.

**Why Each Wrong Option is Incorrect**
**Option A:** Fogarty's catheter is not primarily used for angioplasty, which is a procedure to widen narrowed blood vessels.
**Option B:** Fogarty's catheter is not used for dialysis access, which involves creating a pathway for blood to flow from the body to a dialysis machine.
**Option C:** Fogarty's catheter is not used for pericardiocentesis, which involves removing fluid from the pericardial space surrounding the heart.

**Clinical Pearl / High-Yield Fact**
Fogarty's catheter is a critical tool in the management of acute limb ischemia, where prompt removal of blood clots can significantly improve patient outcomes. It is essential for surgeons and interventional radiologists to be familiar with the use and technique of Fogarty's catheter in such emergency situations.

**Correct Answer: C. Fogarty's catheter is used for embolectomy.**