This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Primary Immunodeficiency, Subject name: Pediatrics
22q11 deletion leading to Di George syndrome is associated with:- 
Select and explain. 
A. Hypokalemia, B. Hyperkalemia, C. Hypocalcemia, D. Hypercalcemia
C: Hypocalcemia
Answer: C: Hypocalcemia 
Explanation: DIGEORGE SYNDROME/ VELO CARDIO FACIAL SYNDROME: C- Cardiac defects A- Abnormal facies T- Thymic hypoplasia C- Cleft palate H- Hypocalcemia (d/t hypothyroidism) 22- 22q deletion