Please enable JavaScript.
Coggle requires JavaScript to display documents.
HyperNatraemia (Symptoms (Severe Fluid Loss (Tachycardia, Hypotension),…
HyperNatraemia
Causes
1 Unreplaced Fluid Loss
Electrolyte Free Loss
Sweat
Fever
GI
Vomit and Diahorrhea
Lactulose
Urine
Diabetes Insipidus
Nephrogenic
Hydrochlorothiazide
Lithium (cause)
Central
ADH
Desmopressin
Diuretic Therapy
Osmotic Diuresis
Hyperglycaemia
Mannitol
Urea
3 Sodium Overload
Hypertonic Salt Solution
Sodium Bicarb for Metabolic Acidosis
Hypertonic Saline for Traumatic Brain Injury
Salt Poisoning
2 Water into Cells
Severe Exercise
Electro-shock Induced Seizures
Rapidly fixes itself (Mins)
Treatment
Acute vs Chronic HyperNa
Fluids
5% Dextrose in Water (0 mmol/L Na)
0.2% NaCl in 5% Dex (34 mmol/L)
0.9% NaCl (154 mmol/L)
Ringer's Lactate (130 mmol/L)
Careful with Dex and Diabetics!
Dialysis
CHF
Loop Diuretic
Hypervolaemic + HyperNa
Replacement Fluid must be Hypotonic to Urine
Symptoms
Decrease in Brain Volume
Lethargy/Weakness
Seizures
Coma
Demyelinating Brain Lesions
Severe Fluid Loss
Tachycardia
Hypotension
Cerebral Oedema
135-145 mmol/L
Regulation
ADH
Post Pituitary
Thirst stimulus