Assessment of Electrolyte disturbances: Pathology review: Video | Osmosis

Question

A 67-year-old female presents to the emergency department with nausea, vomiting, and lethargy. The patient is currently undergoing treatment for diffuse large B-cell lymphoma and last received chemotherapy two days ago. The patient’s temperature is 37.0°C (98.6°F), pulse is 121/min, respirations are 18/min, blood pressure is 92/74 mmHg, and O2 saturation is 94% on room air. On physical exam, she is pale and ill-appearing, intermittently convulsing, and has tenderness to palpation over the left flank. Laboratory findings are demonstrated below:

Laboratory Value Result
Urine
Erythrocytes 20/hpf
Leukocytes 30/hpf
Fractional excretion of sodium (FENa) >3%
Urine Microscopy + uric acid crystals

Which of the following metabolic derangements best explains this patient's clinical presentation?

Accepted Answer

Hyperphosphatemia&#160;

Answer

Hyperglycemia&#160;

Answer

Hyponatremia

Answer

Hypomagnesemia

Answer

Hypokalemia&#160;

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Electrolyte disturbances: Pathology review

Pathology

Renal system