WorksheetsEffects of Local Anesthetics on Blood Vessels
Total questions: 10
Worksheet time: 5mins
What is the pH range of an anesthetic solution further acidified by sodium bisulfite?
6.0 to 7.5
3.0 to 5.5
8.0 to 9.5
1.0 to 2.5
A dentist is considering using an anesthetic solution with sodium bisulfite. What should they be cautious about regarding patient safety?
The solution may become too alkaline
The solution may cause allergic reactions in some patients
The solution will lose its effectiveness quickly
The solution will not preserve well
What is the overall effect of epinephrine on cardiac efficiency in the cardiovascular system?
Increase in cardiac efficiency
No effect on cardiac efficiency
Overall decrease in cardiac efficiency
Increase in heart rate only
How does epinephrine affect insulin secretion metabolically?
Stimulates insulin secretion
Inhibits insulin secretion
Has no effect on insulin secretion
Increases glucose uptake
A patient receives a small dose of epinephrine. Which of the following vascular responses is most likely to occur?
α-mediated vasoconstriction
β₂-mediated vasodilation
β₁-mediated vasoconstriction
No change in vascular tone
For a medically compromised patient, what is the maximum recommended dose?
0.2 mg
0.04 mg
1 mg
0.1 mg
Which technique is recommended for administering an injection?
Inject quickly
Inject slowly
Skip aspiration
Use a random dose
Which of the following conditions makes the normal duration of vasoconstrictor adverse effects too long for patients?
Mild seasonal allergies
Unstable angina
Controlled hypertension
Mild dehydration
Which preservative is present in Levonordefrin formulations?
Sodium chloride
Sodium bisulfite
Potassium nitrate
Calcium carbonate
Why is Levonordefrin manufactured in higher concentrations compared to epinephrine?
Because it is more potent than epinephrine
Because it is less potent than epinephrine
Because it is unstable at low concentrations
Because it is only used in emergencies
