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Don’t Sweat The Small Stuff - Page #3
 

Lab Studies:
Emergency Department Results (post-2L IV fluids): <br>CK: 1033 U/L <br>Sodium: 141 mmol/L <br>Potassium: 4.4 mmol/L <br>BUN: 21 mg/dL, Creatinine: 0.94 mg/dL <br>Myoglobin: 162 ng/mL <br>Glucose: 72 mg/dL <br>Urinalysis: Trace protein, 1+ ketones <br>Other electrolytes, hematology, and liver function studies were within normal limits. <br>Electrolyte Testing (Korey Stringer Institute): <br>Sweat Rate: 3.7 L/hour <br>Sodium Loss: 5.6 g/hour (normal range: 0.18–1.2 g/hour) <br>Potassium Loss: 1.24 g/hour <br>Body temperature remained below 38.6 degrees Celsius during testing, with an average heart rate of 161 bpm (82% of predicted max). Fluid intake during the test was insufficient, resulting in a 2.5% loss of body mass. <br>Genetic Testing: <br>MATR3 gene: c.2128G>A (p.Ala710Thr), heterozygous variant of uncertain significance <br>Additional testing for neuromuscular diseases was non-diagnostic.

Other Studies:
Electromyography (EMG): Non-diagnostic for upper and lower extremities.

Consultations:
Neurology

Click here to continue. Challenge yourself by writing down a revised, working diagnosis before moving to the next slide.

NOTE: For more information, please contact the AMSSM, 4000 W. 114th Street, Suite 100, Leawood, KS 66211 (913) 327-1415.
 

UPCOMING EVENTS



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11/19-11/22/2026
2026 AMSSM/OHSU Introductory &/or Diagnostic/Interventional Sports US Course

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12/04-12/06/2026
2026 Advanced Team Physician Course

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4/16-4/21/2027
2027 AMSSM Annual Meeting

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4000 W. 114th Street, Suite 100
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Phone: 913.327.1415


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