Anesthesia Basics Flashcards
How much Lidocaine and epi in 2% conc w/ 1:100k epi in 1.7mL carpule?
2%= 34 mg/ carpule; epi 1:100,000= 0.017mg/ carpule
Lidocaine: 2%=2g/100cc x 1000mg/1g x 1.7 cc/ carpule= 34 mg/ carpule
Epinephrine; 1:100,000= 1g/100,000cc x 1000 mg/1g x 1.7 cc/ carpule= 0.017 mg/carpule
1.7mL carp Local anesthetic
1%= 17 mg/ carpule
2%= 34 mg/ carpule
3%=51 mg/ carpule
0.5%= 8.5 mg/ carpule
Epinephrine
1: 100,000= 0.017mg/ carpule
1: 200,000= 0.0085 mg/ carpule
1: 50,000= 0.034 mg/ carpule
Max dose of 2% Lido w/ 1:100k epi for 70kg man?
Dose =7mg/kg–> 7x70=490mg
490/34=14.41 round down to 14 carps
maximum safe dose of 2% lidocaine w/epinephrine 1:100,000 (0.01 mg/mL) is 20 mL
MAX dose epi 1:100k=0.2mg
.2/.017=11.76 round down to 11, MAX dose based off MAX epi dose
11 carps
MAX dose local anesth chart
![](https://s3.amazonaws.com/brainscape-prod/system/cm/312/626/184/a_image_thumb.png?1590696648)
Out of Lido, Bupivicaine, and Articaine, which takes the longest to start working?
Bupivicaine=5 to 8min, pka=8.1, also lasts the longest (duration=protein binding)
higher the pka=longer the onset
Max dose of 0.5% Bupivicaine w/ 1:200k epi in 1.8mL carp?
1.3mg/kg if less than 70kg or 90mg if equal/greater to 70kg
Max dose 4% Articaine w/ 1:100k epi or 1:200k epi?
7mg/kg, MAX 500mg
1:200k= more weak, lasts less 120-300min in soft tiss versus 180-360 min 1:100k
72mg LA per 1.8 carp
MAX dose 2% Lidocaine w/ and w/out 1:100k epi?
36mg Lido in 1.8mL carp
NO epi=4.5mg/kg=2mg/Ib, MAX 300
1:100k=7mg/kg=3.2mg/Ib, MAX 500