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Acid–Base And Electrolyte Emergencies Practice Test
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Q1
A 44-year-old woman presents 36 hours after thyroidectomy with tingling and muscle spasms. She has stridor and is anxious. Labs:
Test Result ABG pH 7.46, PaCO2 33 mm Hg, HCO3− 23 mEq/L Ionized Ca2+ 0.78 mmol/L K+ 4.1 mEq/L Mg2+ 1.8 mg/dL
Time-sensitive context: airway symptoms are worsening, and IV access is available.
Which of the following is the most appropriate initial treatment for this electrolyte imbalance?
A 44-year-old woman presents 36 hours after thyroidectomy with tingling and muscle spasms. She has stridor and is anxious. Labs:
| Test | Result |
|---|---|
| ABG | pH 7.46, PaCO2 33 mm Hg, HCO3− 23 mEq/L |
| Ionized Ca2+ | 0.78 mmol/L |
| K+ | 4.1 mEq/L |
| Mg2+ | 1.8 mg/dL |
Time-sensitive context: airway symptoms are worsening, and IV access is available.
Which of the following is the most appropriate initial treatment for this electrolyte imbalance?