Renal tubular defects Quiz: Ace Your Exams
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An 8-year-old boy is brought to the clinic by his parents due to increased thirst and urination for the last month. The patient has no medical history, and he currently takes no medications. The patient’s mother notes that her father had a similar condition. The patient is at the 40th percentile for height and 20th percentile for weight. The patient’s temperature is 37.2°C (98.9°F), pulse is 100/min, respirations are 24/min, and blood pressure is 86/58 mmHg.
Urinalysis shows elevated calcium excretion. Which of the following is most likely affected in this patient?
| Laboratory value | Result |
| Blood, serum, plasma | |
| Sodium | 136 mEq/L |
| Potassium | 2.8 mEq/L |
| Chloride | 83 mEq/L |
| Uric Acid | 10 mg/dL |
| Bicarbonate | 46 mEq/L |
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