This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Pediatrics
A 6-week infant with ambiguous genitalia (as shown below) presents with an episode of dehydration & shock requiring hospitalization. What is the electrolyte abnormality that you expect in this baby? 
Select and explain. 
A. Hypokalemia, B. Hyperkalemia, C. Hypocalcemia, D. Hypercalcemia
B: Hyperkalemia
Answer: B: Hyperkalemia 
Explanation: b. HyperkalemiaAmbiguous genitalia in an infant with dehydration & shock, suggests the diagnosis of CAH due to 21 hydroxylase deficiency