Imperial Collage Healthcare

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Valproate


Lab Code : VALPRO


Test Background
Valproic acid (valproate) is a drug that is used mainly to treat seizures or epilepsy, but is also prescribed to treat bipolar disease (manic depression) and to prevent migraine headaches, though this is an unlicensed use of valproate in the UK. It may be used in combination with other antiepileptic drugs, such as phenytoin or phenobarbital, to control certain kinds of seizures.


Clinical Indications
Routine therapeutic drug monitoring is generally unnecessary but may be occasioned when commencing, altering or stopping treatment. Primary indication is for assessment of compliance Suspected toxicity: gastrointestinal symptoms – diarrhoea, vomiting, nausea – tremors, mood-swings, bruising and bleeding, liver failure and pancreatitis


Reference Range
Pre-dose trough: 50-100 mg/L


Sample Required
SST (gold top)


Sample Volume
0.5 mL


Turnaround Time
1 day


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