Final answer:
To calculate the total Lidocaine in 4 cartridges of 2% solution, you find the mg per cartridge (34 mg) and multiply by the number of cartridges resulting in 136 mg of Lidocaine.
Step-by-step explanation:
The question is asking to calculate the total amount of local anesthetic Lidocaine in 4 cartridges, with each cartridge containing 2% Lidocaine and a volume of 1.7 ml. To determine the total amount of Lidocaine, we need to understand that 2% Lidocaine solution means 2 grams of Lidocaine per 100 ml of solution. We can convert this to milligrams by multiplying by 1,000, giving us 2,000 mg of Lidocaine per 100 ml. Then we calculate the amount in each 1.7 ml cartridge:
Amount of Lidocaine per cartridge = (1.7 ml / 100 ml) × 2,000 mg = 34 mg
Since there are 4 cartridges, we multiply the amount per cartridge by 4:
Total amount of Lidocaine = 34 mg/cartridge × 4 cartridges = 136 mg