Pharm Exam III Numbers Flashcards
All answers are numbers
How much more is CO2 diffusable than O2?
20x
How quickly will N2O diffuse into the air-filled cavity?
10 L in 10-15 minutes
Blood:Gas Partition Coefficients: Halothane
2.54
Blood:Gas Partition Coefficients: N2O
0.46
Blood:Gas Partition Coefficients: Desflurane
0.42
Blood:Gas Partition Coefficients: Isoflurane
1.46
Blood:Gas Partition Coefficients: Sevoflurane
0.69
MACawake
0.3-0.5
MACBAR
1.7-2.0 MAC
MAC: N2O
104
MAC: Halothane
0.75
MAC: Isoflurane
1.17
MAC: Desflurane
6.6
MAC: Sevoflurane
1.8
MAC Age: 55-60
-6% per decade
MAC Age: 30-55
+/- 0%
MAC Age: 10s
+12%
MAC Age: peak
1 year old
MAC Age: 20s
+6%
MAC Age: 70s
-12%
No change in MAC: PaCO2
15-95 mmHg
No change in MAC: PaO2
> 38 mmHg
Vapor Pressure: Halothane
243 mmHg
Vapor Pressure: Isoflurane
238 mmHg
Vapor Pressure: Desflurane
669 mmHg
Vapor Pressure: Sevoflurane
157 mmHg
MAC: Burst Supression
1.5 MAC
MAC: Electrical Silence (Brain Death)
2 MAC
MAC: Dose related decrease in amplitude and increase in latency for both SSEP and MEP
0.5-1.5 MAC
Autoregulation of CBF
60-160 mmHg
MAC Loss of Autoregulation CBF: Halothane
0.5 MAC
MAC of Autoregulation CBF: Sevoflurane
1 MAC
MAC Loss of Autoregulation CBF: Isoflurane & Desflurane
0.5-1.5 MAC
MAC: Increased ICP
Onset > 0.8 MAC
Amount increase in ICP by anesthesia
7 mmHg
MAC: Apnea
1.5-2.0 MAC
MAC: Blunt hypoxic response (COPD)
50-70% depression: 0.1 MAC
100% depression: 1.1 MAC
MAC: Hypoxic Pulmonary Vasoconstriction
50% depression at 2 MAC
MAC: Sevo increases HR
> 1.5 MAC
Hepatotoxicity: Type I
1-2 weeks after exposure
20% of patients
Hepatotoxicity: Type II
1 month after exposure
MAC: Increased portal vein flow
1-1.5 MAC
MAC: N2O vomiting
> 0.5 MAC
MAC: Obstetric Effects
0.5-1.0 MAC
1 Hz: Seconds
1 second
TOFR: Amplitude of 4th twitch is 50% of the 1st
0.5
TOFR: Experienced anesthetists’ unable to detect fade
> 0.4
TOFR: Significant residual
0.7-0.9
Bedside extubation criteria..
PIP = 25-30 cmH2O
Succinylcholine: Dose
1 mg/kg
Succinylcholine: Onset
30-60 seconds
Succinylcholine: Duration
3-5 minutes
Succinylcholine: K+ leak
0.5 mEq/L
TOFR: Phase I Block
> 0.7
Succinylcholine: Overdose
2-4 mg/kg
Succinylcholine: duration if dibucaine number is 20
3 hours (normal dose)
Succinylcholine: Increased intraocular pressure
Maximum increase 2-4 minutes after administration
Lasts 5-10 minutes (transient)
Fasciculation dose of non-depolarizing NMBD
1/10th of Vec or Roc dose
Dantrolene: Dose
2.0 mg/kg; max 10mg/kg
MAC: Ischemic Preconditioning
0.25 MAC
What is the temperature in the OR?
20-22o
What is the temperature in the absorber?
40-60o
How much moisture is in soda lime?
15%
NIOSH limits for potent anesthetics
2ppm; 25ppm for N2O
How long will it take for the brain to equalize with the spinal cord?
10-15 minutes
N2O reduces MAC by…
1% for each % of N2O
MAC decreases by 50% for each…
10o decrease in temperature
Tetanic stimulation
50 hz for 5 seconds
Post-tetanic stimulation
1 twitch 3 seconds after stimulation
Synaptic Cleft
20-50 nm wide
Ready Release Vesicles
5,000-10,000
Pentameric unit
5 sub pores
Succinylcholine: MG Dose
1.5-2mg/kg