PNCB practice questions 2 Questions With Complete Solutions

Following resection of a medulloblastoma, a school aged child is noted as having irritability, a weight gain of 1.5kg in the absence of edema, UOP of .4ml/kg/hour and the following laboratory results. The most likely diagnosis is: A) adrenal insufficiency B) Cerebral salt wasting C) Diabetes insipidus D) syndrome if inappropriate antidiuretic hormone Sodium 128 mEg/L Potassium 4.0 mEq/L Chloride 103 mEq/L Bicarbonate 26 mEq/L BUN 10mg/dL Creatinine 0.2mg/dL Glucose 102 mg/dL Calcium 7.8 mg/dL Magnesium 1.8 mg/dL Phosphorus 2.9 mg/dL correct answer: D. Syndrome of inappropriate antidiuretic hormone An interprofessional team is developing an algorithm to guide the ordering of diagnostic tests for children seen in their sub-specialty clinic. The team will review and grade relevant