CMC First Exam

  1. How do you identify patients risk?
    • - Medical history (questionnaire interview)
    • - Physical exams (face, eyes, skin)
    • - Lab tests (screening confirmation)
    • - medical consultations (NEVER A CLEARANCE, unless its for a specific procedure)
  2. Medical complexity Classification MCS
    - 0
    - 1
    - 2
    • Numbers - existence of disease
    • 0 = no disease or condition
    • 1 = controlled disease or condition
    • 2 = uncontrolled disease or condition
    • Letter - Anticipated complication
    • A = no anticipated complication
    • B = minor anticipated complication (can be managed chairside)
    • C = major anticipated complication (not easily managed chairside, can be fatal)
  3. DM- Dental Modification
    • DM-0 - no modifications needed
    • DM-1 - modifications needed before tx
    • DM-2 - modifications needed during tx
    • DM-3 - modifications needed after tx
  4. How is the ANC (absolute neutrophil count) calculated?
    • Total of WBC times the % of neutrophils
    • * Less than 1,000-1,500 (ANC) is considered neutropenia and the patient is prone to infections
  5. Most common cause of drug induced anaphylaxis
    • Penicillin
    • Initial reaction usually involves the skin but then second can be fatal with anaphylaxis
    • Clindamycin is the go to antibiotic for those allergic to penicillin medications.
  6. What BP is considered hypertension?
    • anything over 140/90, below is called pre-hypertenson
    • The closet the diastolic gets to the sistolic, the most chance of getting a heart attack.
    • Sistolic (when the heart contracts)
    • Diastolic (when the heart relaxes)
  7. For patients taking beta blockers (PROPANOLOL) or with stage II hypertension....
    • limit carpues of epi to 2
    • DIGOXIN (for heart failure) cannot have epi
  8. DIfference between Antiplatelets and anticoagulants?
    • Antiplatelets (SECONDARY PREVENTION) (work with bleeding time, usually for minor heart complications) prevent the platelets from aggregating and sticking together, the most popular is Aspirin and Plavix.
    • Anticoagulants (PRIMARY PREVENTION) are used more for patients who have had major heart surgery or heart valve replacements to prevent thrombosis. Famous ones are Warfarin (coumadin) and Xerelto
  9. DIfference between stable angina and unstable?
    stable is associated with a heavy workload excersize
  10. Which heart condition arrhythmia where patients are at risk for blood clots and heart attack, 20%
    • Atrial fibrillation
    • V-Fib is life threatening, cardiac arrest
  11. for every cardio patient you MUST
    MONITOR VITAL SIGNS
  12. How long after an MI or heart attack can you see a patient for invasive dental procedures?
    1 month, within the month it is a high risk
  13. reversal for coumadin (warfarin)?
    • Vitamin K
    • * Some antibiotics and nutrition factors can affect coumadin
  14. what are the standard antibiotic prophylaxis doses?
    • 2g amoxicilin 1h before
    • 600mg clindamycin 1hr before (if allergic)
  15. when is prophylactic antibiotics necessary?
    • Any type of VA shunts
    • endocarditis history, cyanotic congenital heart defects, heart transplant with valve replacement, prosthetic heart valve
    • immunosuppreson ANC under 1000
  16. Diff between antibiotic coverage and antibiotic prophylaxis?
    • dont mix antibiotic treatments, they are done for diff reasons, prophylaxis is a MEGA DOSE.
    • Wait 10 days after antibiotic coverage is done to do dental treatment.
  17. What happens in leukemic patients
    • Increased risk for bleeding with chemotherapy
    • Overgrowth of WBC, less space for platelets, less platelets means more bleeding!
  18. 3 examples that give coagulation complications
    • Vitamin K deficiency
    • Liver disease (produces all of the protein coagulation factors), portal hypertension
    • Anti-coag drugs or broad-spectrum antibiotics
  19. How to manage a patient on anticoagulant medication before invasive procedure?
    • Do NOT discontinue medication (the risk is higher of a thrombotic event if done)
    • Manage with local hemostatic agents, atraumatic techniques
    • Avoid NSAIDS for pain
  20. Patients taking coumadin
    • Need routine blood testing (INR) to determine appropriate dose and monitoring, can be dangerous if not properly and precisely controlled
    • Herbal medicine, veggie greens can be dangerous, as well as amoxicillin and doxycycline
    • DENTAL: AVOID NSAIDS and watch antibiotics, INR is needed for invasive procedures. For all NOACs (xerelto, eluquis etc...) consult medical team, but never stop the medication (risks are worse)
  21. For ApTT (activted partial thromboplastin time), evaluates intrinsic blood factors
    • Normal values: 30-40
    • Spontaneous bleeding: >100
    • CANNOT TO DENTAL WORK: >80
    • * Hemophilia, liver disease, von willebrand, heparin, increases the aPTT.
  22. for PT (Prothrombin time), measures Extrinsic factors
    • Coumadin INCREASES PT, THIS IS WHAT THE INR MEASURES
    • Normal: 11-13 sec
    • NO DENTAL CARE: >20 sec
  23. INR must be within what time
    • Within 24 hours for invasive surgical procedures
    • within 72 hours for scaling and mand blocks
    • within 2 weeks if their INR is <3.0 within 2 weeks for routine dental care is fine
  24. Platelet counts
    • >150k is NORMAL
    • < 50k NO ROUTINE DENTAL CARE
    • < 20K spontaneous bleeding
  25. Bleeding control measures
    • Early in the day appointments
    • Fibrin adhesives and mouthwashes
  26. What happens with Digoxin and epinephrine?
    • Arrythmias
    • Avoid intravascular injections
  27. Stem cells that are obtained from another person, mos commonly a relative
    • Allogeneic
    • Has the risk of developing GVL (graft vs leukemia) or GVHD (Graft versus host disease)
  28. Patients own stem cells that are collected and transplanted back
    • Autologous
    • Has less chance of rejection
  29. The main oral complication that occurs in patients that receive stem cell treatment.
    • Mucositis, it peaks between post treatment days 6-12 and begins to resolve between 14-18 days.
    • Incidence of mucositis is 75-100
    • no NSAIDS used for treatment, only some topical and mouthwashes
  30. First question to ask a person who has asthma is..
    • What activates the asthma?
    • Asthma is usually caused by an immunological reaction
  31. Types of asthma attacks
    • Allergic (extrinsic) -seasonal variations, early childhood onset
    • Non-allergic (intrinsic)- idiopathic
    • Exercise induced- inhalation of cold air
    • Infectious - viral or bacterial
    • Atopic (allergen) and Non-atopic(non-allergen)
  32. Main types of medications for asthma?
    • Bronchodilators: B and B2 agonists, epinephine and muscle relaxants
    • Anti-inflammatory agents: Steroids (singulair and flonase)
    • Some anticholinergic drugs
  33. Main dental management in a patient with asthma?
    • Have the rescue inhaler nearby
    • Nitrous oxide can be used with mild-moderate asthma, but not severe
    • Avoid NSAIDS (especially Aspin) in sensitive patients, avoid macrolide antibiotics and clindamycin in pts who take theophyline.
    • Reduce enamel dust, avoid aerosols
  34. What is the normal platelet count?
    • 150-450k 
    • 50-150k treat ith local hemostatic agents
    • less than 50k cannot treat
    • less than 20k spontaneous bleeding
  35. What is the normal WBC count
    4-11 thousand
  36. Main characteristic of anemia?
    • Reduction is oxygen-carrying capacity of the blood
    • independent risk factor for adverse cardiovascular outcomes
  37. What organ determines the level of oxygenation and stimulates production and release of RBC?
    Kidney, releases erythropoeitin
  38. What type of anemia is formed because of the lack of b12 absorption and folic acid?
    Pernicious anemia and folate deficiency
  39. Hemolytic anemia is most commonly caused by....
    Infection and aspirin
  40. When do defer treatment of the anemic patient?
    • If the Hb is less than 10 and the patient is symptomatic
    • Also if there is history of CVD and the procedure will lose a lot of blood
    • Normal Hemoglobin ranges from 10-18
  41. Oral manifestations of anemia?
    • - Pale mucosa
    • • Loss of papillae
    • • Angular cheliis and apththae
    • • Burning mouth, sore tongue
    • • Plummer-Vinson syndrome
    • characterized by a sore mouth, dysphagia and  increased risk of oral or pharyngeal cancer.
  42. Sickle cell anemia dental management?
    • Antibiotic prophylaxis for major surgical procedures, loading dose at the time of the procedure, usually for 7-10 days
    • Avoid aspirin and vasocontrictors, no care below 10 hemoglobin (nitrous needs more than 50% oxygen)
  43. Anemia where the bone marrow cannot produce RBC and what causes?
    • Aplastic anemia
    • Causes: Mostly drugs, insectacides and viral infections
  44. Does anemia cause bleeding?
    Anemia does not cause bleeding but people with aplastic anemia are susceptible to infections.
  45. Their function is to defend the body against infectious agents, primarily bacteria
    • Neutrophils.
    • The normal values are 1,500-8,000 /mm3
  46. Leukocytosis vs leukopenia?
    Leukocytosis is an elevated level of leukocytes in the blood, usually indicates infection or necrosis
  47. Patients with Leukemia and Lymphoma are suceptable
    • Candida
    • Thrombocytopenia
    • Immunosuppression
    • Ulcers
    • Viral infections 
    • and Advanced periodontal disease
  48. Clinical signs for leukemia
    ulcers, recurrent infections, gingival enlargement and bleeding, lymphadenopathy
  49. In cancer patients, whats the time before when extractions could be done?
    • 10-14 days before chemotherapy, PRE AND POST AB (consult with physician)
    • Some recommend extractions of pockets are more than 5mm
  50. Less than how many WBC is antibiotic prophylaxis recommended?
    2,000
  51. The 4 conditions which require antibiotic prophylaxis
    • Previous endocarditis
    • Prosthetic heart valve
    • Congenital heart disease (unrepaired cyanotic heart defect, or congenital heart defect with prosthetic material or device during the first 6 months)
    • Cardiac transplant with hx cardiac valvulopathy
  52. 70yr old male takes nitroglycerin for angina, what dental management or modification needs to be done?
    Have a nitroglycerin pill on the bracket table and check for expiration
  53. Pt with history of CVA and is taking coumadin, what is the appropriate test to plan the extraction, above what value cannot be treated?
    • INR, cannot be treated over 3.5
    • INR measures the pT which is the only extrinsic pathway (factor 7)
    • aPTT is the intrinsic pathway (where we find factor 8, which is what is ruined in hemophilia)
    • ** This is why hemophiliac patients need an aPTT test
  54. What are the values of PT and aPTT?
    • aPTT- 30-40 sec is normal, more than 80 cannot be treated
    • PT- is 11-13 seconds, more than 20 cannot be treated, Patients taking coumadin have this affected directly, 24 hour INR is required.
    • Coumadin is affected by vitamin K and green vegetables.
  55. 2 contraindications of a patient wearing a pacemaker in dental management?
    Electric pulp test and electrosurge
  56. During the assessment of a patient diagnosed with arrhythmia we need to determine.
    • The type of arrhythmia may contradict dental treatment (severe)
    • Medications patient is taking (because of interactions with epinephrine and promote bleeding risk)

    They can cause aFIB
  57. What is the time recommended to wait before elective dental procedures after uncomplicated MI
    4-6 weeks
  58. What is the highest BP possible for tx?
    180/100 but very important that there aren't any other organ damage of failure (heart and kidney)
  59. Pt 52 yr old, never diagnosed with hypertension, wants to take out a tooth that is not hurting with high BP.
    • Cannot do it, it is an elective treatment. Instead pt should be referred to get treatment for high BP. 150/120
    • When BP numbers are too close together, it is a problem because the heart is not relaxing
  60. Name 4 dental management recommendations for patients with Hypertension?
    • - Monitor vital signs, blood pressure
    • - Limit amount of vasoconstictor
    • - Avoid intravascular injections
    • - Control pain (excellent anesthesia), lessen stress and natural epinephrine
  61. Sickle cell anemia needs...
    • Antibiotic prophylaxis recommended
    • DO NOT USE ASPRIN
    • NO BLANCHING WHEN USING ANESTHESIA
    • AVOID VASOCONSTRICTORS
  62. Which type of anemia would you expect gingival bleeding?
    Aplastic anemia, because the bone marrow is unable to produce adequate numbers of RBCs, white blood cells and platelets.
  63. What conditions cause neutropenia?
    • Chemotherapy
    • Bone marrow disease
    • Steroids
    • Immunosuppression therapy
  64. Lowest amount of ANC workable with HIV? any why?
    500, because the quality of the neutrophils is good, opposed to low quality and quantity in other immunosuppressed conditions.
  65. Based on the Viral load and cd4 count, what is considered when treating a HIV patient with antibiotic prophylaxis?
    • None, only ANC is considered (less than 500)
    • Viral load shows the progression of the virus, but does not have an impact on prognosis. 
    • CD4 is the type of lymphocyte, but has no impact on AB prophylaxis
  66. What is affected in von Willebrands disease and in Hemophilia and what is the management?
    • Deficiency in coagulation factors
    • Determine the severity by aPTT tests
    • Avoid aspirin and NSAIDs
  67. Name 2 types of antithrombotic drugs and the labs needed to monitor the risk of bleeding?
    • Anticoagulants (warfarin, eliquis, xarelto) - the test is INR
    • Antiplatelets (aspirin and clopidrogel (plavix) - NO TEST FOR ANTIPLATELETS
    • aPTT tests for new anticoagulants can be done for extensive surgical procedures.
  68. Medications to avoid in patients taking Coumadin?
    • Antibiotics (amox, doxycycline y metronizadole)
    • NSAIDS
    • Antifungales
  69. Side effects of Calcium channel blocks are xerostomia and gingival hyperplasia?
    • FALSE
    • CCB do not give xerostomia
  70. How with ACE inhibitors impact dental care?
    • Coughing
    • Orthostatic hypertension
    • Dry mouth
  71. Which medications cause increase in BP?
    • Barbiturates
    • Cold and cough medicine
    • NSAIDS
    • Immunosuppressants
  72. Which antidepressants can cause abnormal bleeding?
    SSRI (paxil, prozac, zoloft, celexa)
Author
jesseabreu
ID
323980
Card Set
CMC First Exam
Description
care of medically complex patient - first competency
Updated