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It is stated that 1mg is administered and then this is repeated a further 3 times. This means 4mg of Adrenaline was given in total meaning the correct answer is 40mL, not 30mL.
6479
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It says the doses were repeated, to a total of 3 times rather than repeated 3 times 

8070
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Anterior Supine
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Tachycardia Outpatient
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im confused I thought 1:10000 meant 1g in 10,000ml 
36708
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you're right - 1g in 10,000mL = 1000mg in 10,000mL (same thing) 
just cancel out the extra 0s from both sides then you get 1mg in 10 mL 
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Afia
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Serotonin Dorsal
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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Drug Calculations
Topic
9
Internal Medicine
The definition of 1:10000 is 1kg in 10000L = 1mg in 0.01L = 1mg in 10mL. Since each dose of adrenaline is 1mg, the corresponding volume given is 10mL. Since three doses of adrenaline were given, the total volume given was 30mL.

Concentration ratios (1:10000 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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30
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A 72-year-old patient suffered a cardiac arrest. Once intravenous access was obtained, 1mg of adrenaline was administered. This was repeated and in total, the same dose was given three times until there was return of spontaneous circulation. Adrenaline is available as a 1:10000 solution.


What was the total volume of adrenaline given?