Anesthesia Math Flashcards
BMI
kg/m2
A patient is 6 feet tall and weighs 180lbs. What is their BMI?
21.5
The concentration of a gas in a H cylinder is 31 parts per million (ppm). What is the concentration?
0.0031%
5mL and 10mL syringe (small mark)
0.2mL
3mL syringe (each small mark)
0.1mL
TB syringe (each small mark)
0.01mL
How many mLs Neostigmine should be administered to a 30kg child?
Dose: 1.2mL - 2.4mL
An anesthetist has 50mL syringe of 0.5% lidocaine. How many mLs should the anesthetist deliver in order to give a dose of 100mg?
20mL
An anesthetist has a vial of 0.75% Marcaine, and wants to give an exact dose of 14mg for a spinal. How many mLs should they administer?
1.86mL
An anesthetist has a 500mL bag of 10% Mannitol, and needs to give 30g of Mannitol to a patient. How many mLs should the anesthetist administer?
100mg/ml
1000mg/10mL
1g/10mL
300mL
An anesthetist wants a 10mL syringe to contain 100mcg/mL phenylephrine. How many TOTAL mcg phenylephrine need to go into the syringe?
1000mcg
An anesthetist wants a 250mL bag of N/S to contain phenylephrine at a concentration of 50mcg/mL. In order to do this, how many mLs of the phenylephrine should the anesthetist add to the 250mL bag of N/S?
12,500mcg needed in 250mL at [10,000mcg/mL]
1000mcg/0.1mL
2000mcg/0.2mL
500mcg/0.05mL
so…
1mL (10,000mcg) + 0.2mL (2000mcg) + 0.05mL (500mcg) = 1.25mL needed
An anesthetist has added 10mg epi to a 250mL bag of N/S. What is the final concentration of epi (in mcg/mL) in the bag?
40mcg/mL
An anesthetist wants a 10mL syringe of 0.75% Marcaine to contain epinephrine at a concentration of 1:500,000. In order to do that, how many mLs of the epinephrine (1mg/mL) should the anesthetist add to the 10mL syringe of Marcaine?
1000mcg/mL
100mcg/0.1mL
10mcg/0.01mL
20mcg/0.02mL
so we will add 0.02mL epi to 10mL 0.75% Marcaine
What is the concentration of 1:100,000 epinephrine?
1,000,000mcg/100,000mL
or
10mcg/mL
