A 5-year-old with suspected septic shock has a heart rate of 168, capillary refill of 4 seconds, and mottled skin. After two 20 mL/kg NS boluses, the child remains hypotensive. What is the next priority?
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A
Administer a third 20 mL/kg fluid bolus only
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B
Begin vasoactive medications (dopamine or epinephrine)
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C
Perform immediate lumbar puncture
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D
Switch to oral rehydration therapy