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Adrenal crisis due to secondary adrenal insufficiency — MRCEM SBA MCQ

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HardPaediatric emergenciesAdrenal crisis due to secondary adrenal insufficiencyMRCEM SBA

A 9-year-old boy with hypopituitarism following treatment for a craniopharyngioma takes daily hydrocortisone and levothyroxine. He has had fever and vomiting for 18 hours and has been unable to retain his last two hydrocortisone doses. No emergency injection has been given. In the emergency department he is drowsy but responds to voice. His blood pressure is 76/42 mmHg, capillary refill time is 5 seconds and bedside glucose is 2.3 mmol/L. Sodium is 129 mmol/L and potassium is 4.3 mmol/L. Intravenous access is established. Which management plan is most appropriate now?

Educational content. Not a substitute for clinical judgement or local policy.

Reveal the answer and explanation

Correct answer: B — Give intravenous hydrocortisone 100 mg, 10% glucose 3 mL/kg and 0.9% sodium chloride 10 mL/kg, and admit.

Vomiting has prevented this child from absorbing replacement hydrocortisone during an intercurrent illness. Hypotension, prolonged capillary refill, drowsiness and hypoglycaemia indicate an adrenal crisis requiring immediate parenteral hydrocortisone, alongside treatment of the hypoglycaemia and shock. A normal potassium concentration does not exclude crisis in secondary adrenal insufficiency. For a child aged 6 years or over, the cited UK paediatric guidance specifies an initial hydrocortisone dose of 100 mg IV or IM; for glucose below 3 mmol/L it specifies 3 mL/kg of 10% dextrose, and for shock a 10 mL/kg bolus of 0.9% sodium chloride, reassessed and repeated if needed. He requires admission for ongoing hydrocortisone, monitoring and assessment of the precipitating illness. ([clinicalguidelines.scot.nhs.uk](https://www.clinicalguidelines.scot.nhs.uk/ggc-paediatric-guidelines/ggc-paediatric-guidelines/endocrinology/adrenal-insufficiency-in-children-emergency-and-acute-management-guidance-paediatrics-239/?utm_source=openai)) A treats two immediate problems but inappropriately delays hydrocortisone for test results. C leaves documented hypoglycaemia untreated during resuscitation. D relies on oral hydrocortisone despite persistent vomiting and established crisis. E provides appropriate initial treatment but proposes discharge after a transient improvement rather than ongoing inpatient treatment and monitoring. ([clinicalguidelines.scot.nhs.uk](https://www.clinicalguidelines.scot.nhs.uk/ggc-paediatric-guidelines/ggc-paediatric-guidelines/endocrinology/adrenal-insufficiency-in-children-emergency-and-acute-management-guidance-paediatrics-239/?utm_source=openai))

Reference: NICE NG243: Adrenal insufficiency—recommendations (28 August 2024) — https://www.nice.org.uk/guidance/NG243/chapter/recommendations NHS Greater Glasgow and Clyde: Adrenal insufficiency in children, emergency and acute management guidance (Date not specified; checked 27 September 2026) — https://www.clinicalguidelines.scot.nhs.uk/ggc-paediatric-guidelines/ggc-paediatric-guidelines/endocrinology/adrenal-insufficiency-in-children-emergency-and-acute-management-guidance-paediatrics-239/ Emergency and perioperative management of adrenal insufficiency in children and young people: BSPED consensus guidance (2023) — https://adc.bmj.com/content/108/11/871