Common medications used in Dentistry Flashcards
What are the 5 indications for prophy AB as prescribed by the heart foundation
- Prosthetic heart valve
- Rheumatic valvular disease
- Previous endocarditis
- Unrepaired congenital heart defect
- Surgical or catheter repair within last 6 months
What is prescribed for prophylactic antibiotics? And what is used if there is an allergy
Amoxicillin 2g 1 hour prior
OR
Clindamycin 600mg 1 hours prior
Mechanisms of Penicillins:
Inhibit cell wall synthesis
What is the mechanism of Metranidazole
Inhibition of nucleic acid synthesis or activity
Condraindication for metranidazole-
Warfarin
What antibiotic needs alcohol avoidance
Metronidazole
What is the side effect of Clindamycin?
Pseudomembranous Colitis (C Difficile infection)
What is the mechanism of Clindamycin?
Inhibition of protein synthesis (Licosamide)
Tx for RAS
2% Minocycline mouthwash
Tx for acute sinusitis:
Doxycycline
What is the mechanisms of Amphotericin, Nystatin AND azoles-
Disrupt fungal cell membrane
Side effect of Amphetericin B lozenges
Gastritis
Azole drug interactions (4)
- Erythromycin
- Clopidogrel
- Warfarin
- Statin
Paracetamol adult dose:
- 500mg-1000mg every 4-6 hours, max 4000mg daily
Ibuprofen adult dose:
- 600mg every 4-6 hours, max 2400mg daily
What is the rule of 2 for steroids
More than 20mg prednisone (or stronger) for more than 2 weeks, within 2 years.
What is the prophylactic dose of amoxycillin for children?
50mg per kg, up to 2g
What is the prophylactic dose of Clindamycin
600mg
A child present with an unrepaired palliative shunt, weighing 20kg, and requires exo. What first line procedure do you follow:
a) No prophylaxis required
b) Give 2g amoxicillin PO 1 hour prior to the procedure
c) Take only surgical dose of paracetamol 600mg 1 hour before procedure
d) Give 1g amoxillin PO 1 hour before the procedure
e) Give 300mg Clindamycin PO 1 hour before procedure
d) Give 1g amoxicillin PO 1 hour before procedure
A 20 year old diabetic male comes into your surgery for his first root canal. You sit him up after giving him LA and he is unconscious. What do you do?
a) Lie him supine and wait for him to recover
b) Ring his mum and ask her to take him home
c) Start giving CPR at 30 compressions to 2 breaths
d) Check vital signs and give 1mg IM glucagon
e) Give 100USP units of insulin and call an ambulance
d) Vital signs and 1mg glucagon
A known asthmatic patient (age 35) starts to become short of breath in your chair. What do you do?
Give them 2x puffs of the beta 2 agonist inhaler at 10 minute intervals up to 3 times
A patient on warfain comes to your private dental practice for a tooth extraction. What is the highest acceptable INR value for them to undergo this procedure?
a) 1
b) 2
c) 3
d) 4
e) 5
c) 3
One GTN spray is:
a) Glycerol Trinitrate 400 micrograms
b) Glucagon Trinitrate 400micrograms
c) Glyceral trinitrate 40 micrograms
d) Glycaemic thermonitrate 40 micrograms
a) Glyceryl trinitrate 400 micrograms
What do the guidelines say you should give as an aspirin dose for suspected MI
300mg
Anaphylactic shock is what type of hypersensitivity reaction
Type I
A patient comes into your prviate dental practice for urgent tooth exo. Last year they were taking systemic prednisone for severe asthma, but has since reduced in severity. Which of the following is an indication for operative steroid cover?
a) This would never be required in this case
d) Dose was 10mg a day and she was on it for 10 days
c) Dose was 20mg a day and she was on it for 3 weeks
d) patient also presents with common cold
c)
Aclasta/Zolendronate
- Bisphoshonate.
- Osteoporosis or Pagets Disease
- BRONJ risk
Allendronate
- Bisphosphonate
- Osteoporosis, Pagets Disease
- BRONJ risk