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We are assuming 1 mL has a mass of 1 g.
2% is 20 mg in 1 mL

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Juice Myopathy
QuestionComment
I thought if it's 2% you assume 2ml in 100ml? No? Not g in ml 
10218
QuestionComment
If a percentage concentration is given and it's not specified that it's volume/volume or weight/volume or weight/weight (since a percentage conc can refer to any of these ratios), then you have to assume that it refers to the units that are given in the question - in this case w/v
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Vitamin Deeznutz
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Ketone Monoclonal
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his weight is 60kg though...
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Zollinger
Concept
Chapter
#### Monitoring

The BNF advises to monitor lung function (in patients with a history of obstructive airway disease).

#### Overdoses

Overdosages with beta-blockers may cause cardiac effects such as bradycardia, hypotension, syncope, conduction abnormalities, and heart failure. Bradycardia is the most common arrhythmia, but some beta-blockers may induce ventricular tachyarrhythmias secondary to prolongation of QT interval (e.g. sotalol) or QRS duration (e.g. propranolol).
Non-cardiovascular effects include central nervous system effects (including drowsiness, confusion, convulsions, hallucinations, and in severe cases coma), respiratory depression, and bronchospasm.

Management
 - Airway protection 
 - Activated charcoal within 1 hour
 - IV Fluids
 
IV glucagon is the first-line management.
 
For symptomatic bradycardia, IV atropine may be used.

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2860
Weight-based dosing; maximum safe volume of drug that can be administered
Topic
13
Neurosurgery
The maximum safe dose that be given is: 3mg/kg x 80kg = 180mg. Now, 2% lignocaine is 2kg in 100L = 20mg in 1mL. Therefore, the maximum safe volume of lignocaine that can be given is 9mL.

Concentration ratios (2% in this case) are based on units of kilogram and litre as they belong to the International System of Units (SI units) which are used by convention.
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9
mL
A 26-year-old gentleman who weighs 60kg requires 2% lignocaine as local anaesthesia for wound stitching. Local protocols state the maximum safe dose that can be administered is 3mg/kg.


What is the maximum safe volume of lignocaine that can be given?