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Bartter Syndrome
(Single Best Answer) Question 1: A 6-month old boy weighing 3.2 kg presents with recurrent vomiting and polyuria. Investigations show blood urea 60 mg / dL, creatinine 0.7 mg / dL, calcium 12.8 mg / dL, phosphate 3 mg / dL, pH 7.45, bicarbonate 25 mEq/L and PTH 140 pg / ml (normal < 60 pg / ml). Daily urinary calcium excretion is reduced. Ultrasound abdomen show bilateral nephrocalcinosis. The most likely diagnosis is ?
A) Bartter syndrome
B) Mutation of the calcium sensing receptor
C) Pseudo-pseudohypoparathyroidism
D) Parathyroid adenoma
Answer (Select an option above to get the answer):
(Single Best Answer) Question 2: A 11-month old boy, weighing 3 kg, has polyuria, polydipsia and delayed motor milestones. Blood investigations show creatinine of 0.5 mg/dl, potassium 3mEq/L, sodium 125 mEq/L, chloride 88 mEq/L, calcium 8.8 mg/dl, pH 7.46 and bicarbonate 26 mEq/L. Ultrasonography shows medullary nephrocalcinosis. The most likely diagnosis is ?
A) Renal tubular acidosis
B) Diabetes insipidus
C) Bartters syndrome
D) Pseudohypoaldosteronism
Answer (Select an option above to get the answer):
(Single Best Answer) Question 3: A 10 month old boy, weighing 3 kg has polyuria, polydipsia and delayed motor milestones. Investigations show blood levels of creatinine 0.5 mg/dL. potassium 3 mEq/L, sodium 125 mEq/L, chloride 88 mEq/L, calcium 8.8 mg/dL, pH - 7.46, and bicarbonate 26 mEq/L. Ultrasonography shows medullary nephrocalcinosis. The most likely diagnosis is ?
A) Renal tubular acidosis
B) Diabetes insipidus
C) Bartter syndrome
D) Pseudohypoaldosteronism
Answer (Select an option above to get the answer):
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