1|Page
NR 293 EXAM 3 / NR 293 PHARMACOLOGY EXAM 3 NEWEST
ACTUAL EXAM COMPLETE 100 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED
A+ ||JUST OUT!!!
Which additional ingredient in LA alkalinizes the solution to a
pH between 6-7, making it less acidic?
a. Sodium hydroxide
b. Sodium chloride
c. Antioxidants
d. Propylparabens - ANSWER-Sodium hydroxide
Which additional ingredient in LA
Adjusts the solution to be isotonic?
a. Sodium hydroxide
b. Sodium chloride
c. Antioxidants
d. Propylparabens - ANSWER-Sodium chloride
,2|Page
Which additional ingredient in LAs
prevents bacterial growth; not routinely used in single-dose
cartridges?
a. Sodium hydroxide
b. Sodium chloride
c. Antioxidants
d. Propylparabens - ANSWER-Propylparabens
What is the amount of LA in one cartridge with a 2% solution? -
ANSWER-36 mg
2/100 = 20
20 x 1.8 = 36 mg/cartridge
N2O administration:
Start with ___% oxygen for ___ minutes, and add nitrous oxide
in ___% increments until the level of sedation is achieved.
Average nitrous oxide requires range from ___ to ___%.
,3|Page
Patient should be placed on ___% oxygen for at least ___
minutes. - ANSWER-Start with 100% oxygen for 2-3 minutes,
and add nitrous oxide in 5-10% increments until the level of
sedation is achieved
Average nitrous oxide requires range from 10-50% (average
35%)
Patient should be placed on 100% oxygen for at least 5 minutes
T/F: The pharmacological effects of N2O are predictable. -
ANSWER-True
Dose-related effects on the CNS (sedation, analgesia, and
amnesia)
What is the best indication of the level of sedation when a
patient has been administered N2O? - ANSWER-Patient
response
N2O:
_________ onset of action.
_________ solubility in blood and tissues. - ANSWER-Rapid
onset of action.
, 4|Page
Low solubility in blood and tissues.
Lipid solubility in benzodiazepines:
__________ (good/poor) lipid solubility.
__________ (slow/fast) onset of action.
Concentrates drug in __________. - ANSWER-Good lipid
solubility and absorption.
Fast onset of action (due to lipid solubility).
Concentrates drug in adipose tissue (increasing duration of
action).
What 3 factors that impact the lipid solubility of
benzodiazepines? - ANSWER-Protein binding
Lipid solubility
Ionization
Most benzodiazepines are lipid soluble and unionized.
What is the mechanism of action for benzodiazepines and
barbiturates? - ANSWER-Enhance action of γ-aminobutyric acid
(GABA)
NR 293 EXAM 3 / NR 293 PHARMACOLOGY EXAM 3 NEWEST
ACTUAL EXAM COMPLETE 100 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED
A+ ||JUST OUT!!!
Which additional ingredient in LA alkalinizes the solution to a
pH between 6-7, making it less acidic?
a. Sodium hydroxide
b. Sodium chloride
c. Antioxidants
d. Propylparabens - ANSWER-Sodium hydroxide
Which additional ingredient in LA
Adjusts the solution to be isotonic?
a. Sodium hydroxide
b. Sodium chloride
c. Antioxidants
d. Propylparabens - ANSWER-Sodium chloride
,2|Page
Which additional ingredient in LAs
prevents bacterial growth; not routinely used in single-dose
cartridges?
a. Sodium hydroxide
b. Sodium chloride
c. Antioxidants
d. Propylparabens - ANSWER-Propylparabens
What is the amount of LA in one cartridge with a 2% solution? -
ANSWER-36 mg
2/100 = 20
20 x 1.8 = 36 mg/cartridge
N2O administration:
Start with ___% oxygen for ___ minutes, and add nitrous oxide
in ___% increments until the level of sedation is achieved.
Average nitrous oxide requires range from ___ to ___%.
,3|Page
Patient should be placed on ___% oxygen for at least ___
minutes. - ANSWER-Start with 100% oxygen for 2-3 minutes,
and add nitrous oxide in 5-10% increments until the level of
sedation is achieved
Average nitrous oxide requires range from 10-50% (average
35%)
Patient should be placed on 100% oxygen for at least 5 minutes
T/F: The pharmacological effects of N2O are predictable. -
ANSWER-True
Dose-related effects on the CNS (sedation, analgesia, and
amnesia)
What is the best indication of the level of sedation when a
patient has been administered N2O? - ANSWER-Patient
response
N2O:
_________ onset of action.
_________ solubility in blood and tissues. - ANSWER-Rapid
onset of action.
, 4|Page
Low solubility in blood and tissues.
Lipid solubility in benzodiazepines:
__________ (good/poor) lipid solubility.
__________ (slow/fast) onset of action.
Concentrates drug in __________. - ANSWER-Good lipid
solubility and absorption.
Fast onset of action (due to lipid solubility).
Concentrates drug in adipose tissue (increasing duration of
action).
What 3 factors that impact the lipid solubility of
benzodiazepines? - ANSWER-Protein binding
Lipid solubility
Ionization
Most benzodiazepines are lipid soluble and unionized.
What is the mechanism of action for benzodiazepines and
barbiturates? - ANSWER-Enhance action of γ-aminobutyric acid
(GABA)
