A patient presents with low serum calcium, high phosphorus and elevated PTH

A patient presents with low serum calcium, high phosphorus and elevated PTH. Which of the following investigations is least contributory to establish a diagnosis -

    1. Vitamin D levels
    1. Serum creatinine levels
    1. Cyclic AMP response to PTH
    1. Urine myoglobin

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All of the following are seen in reckets, except -

    1. Bow legs
    1. Gunstock deformity
    1. Pot belly
    1. Cratio tabes

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