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HPAT Practice Question Section 1

You are treating a 60kg patient for a laceration, which you will need to suture under local anaesthetic. Given that the maximum safe dose of lignocaine is 3mg/kg, what is the maximum volume of a lignocaine 1% weight per volume (w/v) solution that can be administered safely? A.   180µL B.   6mL C.   1.8mL D.   18mL   More HPAT practice questions and resources are available.   Solution: mL = milli litres ; µL = micro litres 1 litre = 1000 mL = 1 kg = 1000 g 1% weight per volume (w/v) solution means 1 litre has 0.01 kg of lignocaine Or...
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