Gastroenterology diagnostic & therapeutic procedures G516 - Measurement of thermic effect of feeding

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To follow 1 hour measurement of resting energy expenditure, subject is given a balanced test meal and then calorimetry measurements are taken for two hours, to include timed urine samples (2-3 hours) and urine nitrogen excretion measurements in a steady state condition, interpretation of results in context of patient's clinical status and written report.