**Core Concept**
Median nerve injury at the wrist can cause weakness and paresthesia in the hand, particularly affecting the thenar muscles and the lateral two and a half fingers. The most common test for median nerve injury is the Tinel's sign and Phalen's test, which assess the nerve's integrity and function.

**Why the Correct Answer is Right**
The correct answer is the Tinel's sign and Phalen's test. Tinel's sign is performed by lightly tapping the median nerve at the wrist, and if the patient experiences paresthesia or tingling in the distribution of the median nerve, it is considered a positive sign. Phalen's test, on the other hand, involves flexion of the wrist to 90 degrees for 60 seconds, and if the patient experiences symptoms, it is considered a positive sign. Both tests are used to assess the median nerve function and diagnose carpal tunnel syndrome.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not specify a test for median nerve injury. While the tests listed in this option may be related to nerve injuries, they are not specific for median nerve injury.
**Option B:** This option is incorrect because it is not a commonly used test for median nerve injury. The tests listed in this option may be used in other contexts but are not relevant to median nerve injury at the wrist.
**Option C:** This option is incorrect because it is not a specific test for median nerve injury. The tests listed in this option may be used to assess nerve function in general, but they are not specific for median nerve injury.

**Clinical Pearl / High-Yield Fact**
When performing Tinel's sign and Phalen's test, it is essential to note that a positive sign does not necessarily confirm a diagnosis of carpal tunnel syndrome, but rather indicates the need for further evaluation.

**Correct Answer:** C. Tinel's sign and Phalen's test.