Question 371 · LDEK · Anesthesia, pharmacotherapy and surgical procedures in children
The addition of a vasoconstrictor in local anaesthesia:
1) is contraindicated in patients with an allergy to bisulphates;
2) allows for an increase in the anaesthetic dose, because it reduces the risk of toxic effects;
3) prolongs the duration of action of the anaesthetic;
4) is contraindicated in pulp regeneration procedures;
5) is beneficial in patients taking antidepressants because it allows the drug accumulation at the site of administration;
6) reduces bleeding in the area of anaesthesia, therefore, it is recommended in patients after haemorrhagic stroke.
The correct answer is:
2) allows for an increase in the anaesthetic dose, because it reduces the risk of toxic effects;
3) prolongs the duration of action of the anaesthetic;
4) is contraindicated in pulp regeneration procedures;
5) is beneficial in patients taking antidepressants because it allows the drug accumulation at the site of administration;
6) reduces bleeding in the area of anaesthesia, therefore, it is recommended in patients after haemorrhagic stroke.
The correct answer is:
- A. 1,2,6.
- B. 1,3,4.
- C. 2,4,5.
- D. 3,5,6.
- E. 1,3,6.
Hint
Weigh each claim against how vasoconstrictors act, what preservative they require and which drug interactions they carry.
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