Final answer:
Diagnostic studies for an infant with cryptorchidism would likely focus on evaluating hormone levels, as this condition is related to the endocrine system and the hormonal influences on testicular descent.
Step-by-step explanation:
A nurse caring for an infant with cryptorchidism should expect diagnostic studies to evaluate hormone levels. Cryptorchidism is a condition where one or both testicles fail to descend into the scrotum. Since cryptorchidism involves the endocrine system, particularly the hormones related to testicular descent, endocrinologists utilize laboratory tests that assess hormonal function to diagnose the condition. Stimulating or suppressing the endocrine organs and monitoring the hormonal response helps in the diagnosis of various endocrine disorders. In this context, hormone level assessment is more pertinent than tests for blood glucose levels, liver function, or renal function.