Medical History And Medication Flashcards
What does it mean if a patient has atrial fibrillation?
They have an irregular and often fast heartbeat
What condition weakens bones, making them fragile and more likely to break?
Osteoporosis
What medication is often used to treat an individual with atrial fibrillation?
Warfarin
What medication is often used to treat deep vein thrombosis?
Rivoraxaban
What medication is often taken to treat osteoporosis?
Alendronic acid ( a type of bisphosphonate)
what is the risk during dental procedure if the patient is on warfarin?
Bleeding risk post- operatively
what are four examples of direct oral anticoagulants?
- Apixaban
- Dabigatran
- Rivaroxaban
- Edoxaban
What medication is often used to treat deep vein thrombosis?
Rivoraxaban ( a direct oral anticoagulant)
What is the risk during dental procedure if a patient is on direct oral anticoagulants?
Bleeding risk
If patient is at high risk of bleeding during dental procedure, what should you advise them to do prior to treatment?
To miss or delay morning dose of medication
At what point in the day should you treat a patient with bleeding risk?
Early in the day
What dental procedures are unlikely to cause bleeding?
- LA
- BPE
- supragingival PMPR
- restorations with supragingival margins
- impressions
- endodontics
- fitting and adjustment of orthodontic appliances
what dental procedures are likely to cause bleeding, but at low risk?
- simple extractions
- incision and drainage of intra-oral swelling
- 6 point full periodontal examination
- RSD or subgingival PMPR
- restorations with subgingival margins
what dental procedures are likely to cause bleeding at high risk?
- complex extractions
- 3 or more extractions at one time
- flap raising procedures (e.g. dental implant surgery)
- biopsies
what are three examples of vitamin K antagonists?
- Warfarin
- Acenocoumarol
- Phenindione
What are three examples of injectable anticoagulants?
- Dalteparin
- Enoxaparin
- Tinzaparin
Which anti-platelet drug should we be especially aware of a patient taking, when preparing for a preclude such as an extraction?
Aspirin
What type of drug us Alendronic acid?
Bisphosphonate
What condition does Alendronic acid treat?
Osteoporosis
What dental related risk is there when taking Alendronic acid?
Risk of medication-related osteonecrosis of the jaw (MRONJ)
What is Nicornadil used to treat? And what intra-oral finding can result from its use?
- Angina
- Oral ulceration
What are NSAIDs used to treat? And what intra-oral finding can result from their use?
- Pain and reduces inflammation
- Oral ulceration
What is Phenytoin used to treat? And what intra-oral finding can result from its use?
- Epilepsy
- Gingival swelling
What are calcium channel blockers used to treat? And what intra-oral finding can result from their use?
- They lower blood pressure
- gingival swelling
What is cyclosporine used to treat? And what intra-oral finding can result from its use?
- Autoimmune conditions
- Gingival swelling
Give four examples of systemic disorders that could cause oral ulceration?
- Anaemia
- Coeliac disease
- Lichen planus
- Herpes virus
What systemic disorder might cause glossitis of the tongue?
Anaemia
what two localised disorders may cause glossitis of the tongue?
- Lichen planus
- Candidosis
What are the two different categories of DMARDs?
Conventional DMARDs
Biological DMARDs
What does DMARDs stand for?
Disease modifying anti-rheumatic drugs
What is the main function of DMARDs?
Suppress the immune system and this allows them to slow or stop the disease progression.
Why do DMARDs require regular blood monitoring?
Because these drugs can cause bone marrow suppression, amongst other side effects
What is the function of the DMARD:
Aziothioprine
Inhibits purine synthesis, which is needed to produce RNA and DNA. It inhibits DNA synthesis in dividing immune cells.
What is the function of the DMARD:
Mycophenolate mofetil
Potent inhibition of purine synthesis
What is the function of the DMARD:
Cyclosporine
A calcineurin inhibitor- inhibits calcium dependant signals in T cells and therefore inhibiting their function.
What is the function of the DMARD:
Hydroxychloroquine
Interferes with lysosomes in immune cells, raising the pH so that cells are not able to function properly
What is the function of the DMARD:
Gold (sodium aurothiomalate)
Suppresses the synovitis of active RA
What is the function of the DMARD:
Leflunomide
Inhibits mitochondrial enzymes which inhibits DNA and RNA synthesis.
What is the function of the DMARD:
Methotrexate
Inhibits the enzyme, dihydrofolate reductase, essential for the synthesis of purines and pyramidines
What is the function of the DMARD:
Penicillamine
Aids the elimination of copper ions in Wilson’s disease
What is the function of the DMARD:
Sulfasalazine
Inhibits the formation of prostoglandins
What are the three checks that need to be made prior to commencing DMARD treatment?
- Baseline blood investigations
- Screening for viral infections
- Chest x-ray to look for signs of TB
What baseline investigation is essential before starting the DMARD, azothioprene?
This-urine methyltransferase (TPMT) activity
Why are folic acid supplements required when a patient is taking methotrexate?
Helps to protect healthy cells in the body and reduces the side effects of methotrexate
What is the main side effect of all DMARDs?
Bone marrow supression
What is the main dental consideration of an individual who takes DMARDs?
Increased susceptibility to infection
What are the three broad groups that biologics can be divided into?
- Monoclonal antibodies
- Cytokines
- Fusion proteins
What are fusion proteins?
Transmembrane proteins connected to another molecule
What are monoclonal antibodies?
Antibodies that target a specific antigen. Some will suppress the immune system and others will up-regulate parts of the immense system.
What is the main difference between biologics and conventional DMARDS?
Biologics target one aspect of the immune system, whereas conventional DMARDS suppress the entire immune system
What is the only form of administration of biologics?
IV infusion
When is monoclonal antibody therapy indicated for autoimmune disease?
When patients have failed therapy with at least two DMARDS
Give 4 examples of monoclonal antibody drugs that act as TNF alpha inhibitors?
- Adalimumab
- Certolizumab
- Infliximab
- Golimumab
Name a monoclonal antibody that targets CD20 antigen on B cells?
Rituximab
What programmed death receptor-1 blocking antibody is involved in the treatment of head and neck squamous cell carcinoma?
Pembrolizumab
What anti-epidermal growth factor receptor is involved in treatment of squamous cell carcinoma of the head and neck?
Cetuximab
What are the key dental considerations of a patient taking biologics?
- increased risk of infection (neutropenia)
- thrombocytopenia ( increased bleeding risk)
- risk of MRONJ
- mucosal disease
Why should NSAIDs be avoided with corticosteroid use?
Because corticosteroids increase gastric acid production in the stomach, NSAIDs will increase this also and therefore there is higher risk of developing duodenal ulcers/ peptic ulceration.
Bendroflumethiazide is a thiazide diuretic which can be associated with lichenoid reactions. True or flase?
True