5.1 Endocrine Emergencies Paeds Flashcards
What bloods to get when someone is hypo?
Glucose, Ketones FFA, ketones Lactate, pyruvate Cortisol, GH LFTs Carnitine Ammonia
What urine to get when someone hypoglycaemic?
Ketones
Metabolic screen for organic acids
Amino acids
Galactosuria
If no FFAs then there’s no?
Ketones
Get non-ketotic hypoglycaemia
What causes non-ketotic hypoglycaemia?
Hyperinsulinism
What causes ketotic hypoglycaemia?
Low glucose and low insulin, frees up FFA and ketones get made
How to treat mild-mod hypos?
- 10-15g of fast acting CHO (200ml juice. 4 large jelly beans)
- 1 slice bread/biscuits/fruit/milk
Severe hypos treatment?
IV dextrose infusion
2ml/kg 10% dextrose
Then
5-10% dextrose to maintain above 4mmol/l
- review food plan
- DM review
Treatment of diabetic ketoacidosis:
- Admit to hospital
- Treat shock with fluid bolts: 10ml/kg
- O2 with NP - Rehydrate over 24-48 hours
- Rehydrate with N.saline unless calculated hypernataemia
What to avoid in diabetic ketoacidosis?
Sodium bicarb
Insulin infusion rate for diabetic ketoacidosis?
0.075-0.1units/kg/hour after rests.
In diabetic ketoacidosis, aim for BGL fall of how much per hour?
5mmol/hour
How to treat cerebral oedema?
Mannitol 0.5-1g/kg IV over 20 minutes
Reduce IV fluids
Acute adrenal insufficiency, what happens?
Cortisol deficiency
Loss of vast motor tone
Hypoglycaemia
Shock
Aldosterone deficiency results in?
Less Na+
Hyperkalaemia
Acidosis
Dehydration: shock
What is secondary adrenal insufficiency?
Central
Hypothalamic
Pituitary
-exogenous glucocorticosteroids
How to treat acute adrenal insufficiency?
IV hydrocortisone
100mg/m2
Or IM at home
What is stress dosing for hydrocortisone for mildly unwell
3x normal dose and give 6-8 hourly
What is stress dosing for hydrocortisone for more unwell or temp >39
Increase hydrocortisone to 4x and give 6 hourly
What is diabetes insipidus?
Hypernatraemia
Excess dilute urine
3 main types of Diabetes insipidus?
Central/hypothalamic
Nephrogenic
Primary polydipsia
Risk factors for diabetes insipidus?
Large intrasellar masses
Tumours: craniopharyngioma/Rathke/ACTH secreting tumours
Young
Males
Treatment of Diabetes insipidus?
Fluid balance, monitor electrolytes
Maintain electrolytes
Desmopressin
What is cerebral salt wasting?
- Tumours/trauma causes release of BNP and causes diuresis
- hyponatraemic dehydration
What are the renal effects of BNP?
- Glomerulus: increases GFR and Na+ excretion
- inhibits NA reabsorption in tubules
- inhibits reabsorption of free water
Endocrine effects of BNP?
Inhibits renin and therefore aldosterone
Inhibits ADH—>diuresis
What do you do with Fluid Sodium Adjunct In cerebral salt wasting?
Fluid: replace
Sodium: replace
Adjunct: Fludrocortisone
What do you do with Fluid Sodium Adjunct In SIADH?
Fluid: Restrict
Sodium: Normal
What do you do with Fluid Sodium Adjunct In Diabetes Insipidus?
Fluid: replace
Sodium: normal
Adjunct: DDAVP
How to manage thyroid storm?
Potassium iodide blockers Cabimazole, PTU IV fluids Beta blockers Dexamethasone Paracetamol Cooling