Final answer:
The student's symptoms could be indicative of sciatica, and imaging tests such as an MRI or CT scan may be necessary to determine the cause.
Step-by-step explanation:
The student's symptoms of pain, numbness, and tingling that radiates down the back of his right leg to his calf could be indicative of sciatica. Sciatica is caused by irritation or compression of the sciatic nerve, which runs from the lower back down the back of the leg. It is commonly caused by a herniated disc or spinal stenosis. In order to determine the cause of the symptoms, it would be advisable for the student to undergo imaging tests, such as an MRI or CT scan, to obtain a clearer picture of the spine and identify any structural issues that may be responsible for the symptoms.