Paeds SAQs · acute-care-resuscitation-and-toxicology
Altered conscious state in children — formative SAQs
Two MedVellum formative short-answer questions on the child with an altered conscious state: securing the airway and screening with AVPU and an age-adapted Glasgow Coma Scale, checking and correcting a dangerous low glucose immediately (DEFG), treating an ongoing convulsion at five minutes, recognising raised intracranial pressure, and keeping infection, toxin, metabolic and safeguarding causes open while escalating. The marks and timing support transparent self-assessment. They are not an official board format or pass standard.
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SAQ 1 — A drowsy, feverish three-year-old
Question 1 — 10 formative marks; suggested time 15 minutes [2]
A three-year-old is brought in drowsy, responding to voice only, with a stiff neck, a purpuric rash and a temperature of 39.5 degrees. The heart rate is 140, the capillary refill is 3 seconds, and the blood pressure is low-normal. The team has been called. [10]
- State what you do in the first 60 seconds and why. (2 marks)
- Describe your disability assessment and the level of consciousness measure you record. (3 marks)
- State why you check the bedside glucose now and what a dangerous low would prompt. (2 marks)
- Describe the findings that would signal raised intracranial pressure or impending herniation, and your immediate response. (3 marks) [2]
Full-credit answer — SAQ 1
Reveal full-credit answer for SAQ 1ShowHide
1. First 60 seconds
"This child is critically unwell with altered consciousness, shock and a purpuric rash. I call the senior paediatric and resuscitation teams now, name a leader, allocate roles, and bring age- and weight-appropriate equipment and monitoring. I secure the airway, give high-flow oxygen, support ventilation if ineffective, and treat shock while I begin the disability assessment. Stabilisation precedes diagnosis." [2]
2. Disability assessment
"I screen with AVPU: the child responds to Voice, which is below Alert, so I convert to an age-adapted Glasgow Coma Scale. I record best eye opening, best verbal response and best motor response separately, because the motor response and its trend are the most predictive components. I examine the pupils for size, equality and reactivity, assess posture and tone for lateralising signs, and time any seizure. I document the components and the total and reassess after each action." [1] [2]
3. Bedside glucose and DEFG
"I check a point-of-care glucose now because altered consciousness must always trigger DEFG: don't ever forget glucose. Hypoglycaemia can coexist with infection and is a reversible cause of brain injury. A dangerous low (around or below 3 mmol per litre in most children, using the local age-specific threshold) I correct immediately through the active age- and context-specific pathway, then recheck and investigate the cause. I confirm an unexpected result when feasible, but I never let confirmation delay treatment of a dangerous low." [4]
4. Raised intracranial pressure
"New pupillary asymmetry, dilation or unreactivity, abnormal decorticate or decerebrate posture, or a Cushing pattern of rising blood pressure with falling heart rate and irregular breathing signal raised intracranial pressure and impending herniation. My immediate response is to raise the head of the bed, keep the midline position, optimise oxygenation and control ventilation to avoid hypercapnia, because hypercapnia raises intracranial pressure, and arrange urgent neuroimaging and neurosurgical input. I do not perform a lumbar puncture until raised pressure is excluded and the child is stable." [9]
References7ShowHide
- [1]Hoffmann F, Schmalhofer M, Lehner M, et al. Comparison of the AVPU Scale and the Pediatric GCS in Prehospital Setting Prehospital emergency care, 2016.PMID 26954262
- [2]Kirschen MP, Snyder M, Smith K, et al. Inter-Rater Reliability Between Critical Care Nurses Performing a Pediatric Modification to the Glasgow Coma Scale Pediatric critical care medicine, 2019.PMID 30946292
- [4]Faustino EV, Hirshberg EL, Bogue CW Hypoglycemia in critically ill children Journal of diabetes science and technology, 2012.PMID 22401322
- [6]Chamberlain JM, Kapur J, Shinnar S, et al. Efficacy of levetiracetam, fosphenytoin, and valproate for established status epilepticus by age group (ESETT): a double-blind, responsive-adaptive, randomised controlled trial Lancet (London, England), 2020.PMID 32203691
- [7]Appleton RE, Rainford NE, Gamble C, et al. Levetiracetam as an alternative to phenytoin for second-line emergency treatment of children with convulsive status epilepticus: the EcLiPSE RCT Health technology assessment (Winchester, England), 2020.PMID 33190679
- [9]Dunger DB, Edge JA Predicting cerebral edema during diabetic ketoacidosis The New England journal of medicine, 2001.PMID 11172161
- [10]Chávez-Bueno S, McCracken GH Jr Bacterial meningitis in children Pediatric clinics of North America, 2005.PMID 15925663