CCC Midterm Exam Questions with Correct Answers Latest Update 2025/2026
The interval between the presumed initiating bacteremia and the onset of symptoms of
infective endocarditis is estimated to be less than ___ in more than 80% of patients with IE -
Answers 2 weeks
Which of the following is currently the most common underlying condition predisposing to
infective endocarditis - Answers Mitral valve prolapse
Which of the following antibiotics is the best choice if a patient who requires premedication
before dental treatment is already taking penicillin for eradication of an infection - Answers
Clindamycin
The American heart association currently recommends antibiotic prophylaxis before dental
treatment to prevent endocarditis for patients with which of the following cardiac condition? -
Answers Mitral valve prolapse with regurgitation, Rheumatic heart disease, Prosthetic heart
valve ---A B and C
Which of the following is true concerning infective endocarditis - Answers Accumulating
evidence questions the validity of antibiotic prophylaxis in an attempt to prevent IE prior to
certain invasive dental procedures
The leading cause of death due to infective endocarditis is - Answers Heart failure
Which of the following is true of the magnitude of bacteremia required to cause infective
endocarditis - Answers Cases of IE caused by oral bacteria probably result from frequent
exposure to low inocula of bacteria in the bloodstream due to daily activities and not a dental
procedure
Where are Janeway lesions located - Answers Palms of the hangs and soles of the feet
Why should rapid changes in chair position during dental treatment be avoided for patients
taking medication for hypertension - Answers Alpha blockers, alpha beta blockers, and diuretics
tend to produce orthostatic hypotension as a side effect
Which of the following groups is most often the first-line drug category of choice if lifestyle
modification is ineffective at lowering blood pressure - Answers None of the above; lifestyle
modification should continue unless blood pressure is > 140/90 mm HG
Deferral of elective dental care and referral to a physician for evaluation and treatment within 1
week are indicated for patients found to have asymptomatic blood pressure of greater than or
equal to ___ mm Hg - Answers 180/110
It is estimated that about ___% of all blood pressure related deaths from coronary heart disease
occur in persons with blood pressure in the prehypertensive range - Answers 15
, Which of the following is recommended for stress management for dental patients with
hypertension - Answers Nitrous oxide plus oxygen for inhalation sedation
Use of how many carpules of 2% lidocaine with 1:100,000 epinephrine at one time is considered
to have little clinical risk for dental treatment of a patient with hypertension - Answers 2
Which of the following is an adverse drug interaction that may occur if a dental anesthetic
containing a vasoconstrictor is administered to a patient being treated for hypertension with a
nonselective B-adrenergic blocking agent - Answers Hypertension
In prehypertension, diastolic pressure ranges from ___ mm HG - Answers 80-89
Which of the following is the most common cause of sudden cardiac death - Answers
Ventricular fibrillation
Which of the following is the important symptom of coronary atherosclerotic heart disease -
Answers Chest pain
Which of the following is not true of the relationship between periodontal disease and
cardiovascular disease - Answers A single risk factor-dental caries- has been found to be
responsible for the development of coronary artherosclerosis in patients over 50 years old
Which of the following is true for an myocardial (MI) with ST segment elevation (STEMI) -
Answers It is due to complete blockage of coronary blood flow
Which of the following is a serum enzyme determination used to establish the diagnosis of
acute myocardial infarction (MI) and to determine the extent of infarction - Answers Troponin I
and troponin T
When planning dental treatment for a patient with stable angina or a past history of myocardial
infarction without ischemic symptoms ___ - Answers NSAIDs should be avoided
New onset chest pain that increases in frequency or intensity, has a changing pattern, may
possibly occur at rest, and is not readily relieved by nitroglycerin is best defined as __ - Answers
Unstable angina
What is a specific advantage of implantable cardioverter-defibrillators (ICDs) in contrast to
pacemakers - Answers ICDs are capable of providing antichycardia pacing (ATP) and ventricular
bradycardia pacing, while pacemakers are not capable of providing such pacing
Which of the following sequences correctly depicts the normal pattern of sequential
depolarization of the structures of the heart (1) right and left bundle branches (2) sinoatrial
node (3) subendocardial purkinje network (4) bundle of his (5) atrioventricular node - Answers
2,5,4,1,3
Due to the rapid absorption for a high concentration of epinephrine and the potential for adverse
The interval between the presumed initiating bacteremia and the onset of symptoms of
infective endocarditis is estimated to be less than ___ in more than 80% of patients with IE -
Answers 2 weeks
Which of the following is currently the most common underlying condition predisposing to
infective endocarditis - Answers Mitral valve prolapse
Which of the following antibiotics is the best choice if a patient who requires premedication
before dental treatment is already taking penicillin for eradication of an infection - Answers
Clindamycin
The American heart association currently recommends antibiotic prophylaxis before dental
treatment to prevent endocarditis for patients with which of the following cardiac condition? -
Answers Mitral valve prolapse with regurgitation, Rheumatic heart disease, Prosthetic heart
valve ---A B and C
Which of the following is true concerning infective endocarditis - Answers Accumulating
evidence questions the validity of antibiotic prophylaxis in an attempt to prevent IE prior to
certain invasive dental procedures
The leading cause of death due to infective endocarditis is - Answers Heart failure
Which of the following is true of the magnitude of bacteremia required to cause infective
endocarditis - Answers Cases of IE caused by oral bacteria probably result from frequent
exposure to low inocula of bacteria in the bloodstream due to daily activities and not a dental
procedure
Where are Janeway lesions located - Answers Palms of the hangs and soles of the feet
Why should rapid changes in chair position during dental treatment be avoided for patients
taking medication for hypertension - Answers Alpha blockers, alpha beta blockers, and diuretics
tend to produce orthostatic hypotension as a side effect
Which of the following groups is most often the first-line drug category of choice if lifestyle
modification is ineffective at lowering blood pressure - Answers None of the above; lifestyle
modification should continue unless blood pressure is > 140/90 mm HG
Deferral of elective dental care and referral to a physician for evaluation and treatment within 1
week are indicated for patients found to have asymptomatic blood pressure of greater than or
equal to ___ mm Hg - Answers 180/110
It is estimated that about ___% of all blood pressure related deaths from coronary heart disease
occur in persons with blood pressure in the prehypertensive range - Answers 15
, Which of the following is recommended for stress management for dental patients with
hypertension - Answers Nitrous oxide plus oxygen for inhalation sedation
Use of how many carpules of 2% lidocaine with 1:100,000 epinephrine at one time is considered
to have little clinical risk for dental treatment of a patient with hypertension - Answers 2
Which of the following is an adverse drug interaction that may occur if a dental anesthetic
containing a vasoconstrictor is administered to a patient being treated for hypertension with a
nonselective B-adrenergic blocking agent - Answers Hypertension
In prehypertension, diastolic pressure ranges from ___ mm HG - Answers 80-89
Which of the following is the most common cause of sudden cardiac death - Answers
Ventricular fibrillation
Which of the following is the important symptom of coronary atherosclerotic heart disease -
Answers Chest pain
Which of the following is not true of the relationship between periodontal disease and
cardiovascular disease - Answers A single risk factor-dental caries- has been found to be
responsible for the development of coronary artherosclerosis in patients over 50 years old
Which of the following is true for an myocardial (MI) with ST segment elevation (STEMI) -
Answers It is due to complete blockage of coronary blood flow
Which of the following is a serum enzyme determination used to establish the diagnosis of
acute myocardial infarction (MI) and to determine the extent of infarction - Answers Troponin I
and troponin T
When planning dental treatment for a patient with stable angina or a past history of myocardial
infarction without ischemic symptoms ___ - Answers NSAIDs should be avoided
New onset chest pain that increases in frequency or intensity, has a changing pattern, may
possibly occur at rest, and is not readily relieved by nitroglycerin is best defined as __ - Answers
Unstable angina
What is a specific advantage of implantable cardioverter-defibrillators (ICDs) in contrast to
pacemakers - Answers ICDs are capable of providing antichycardia pacing (ATP) and ventricular
bradycardia pacing, while pacemakers are not capable of providing such pacing
Which of the following sequences correctly depicts the normal pattern of sequential
depolarization of the structures of the heart (1) right and left bundle branches (2) sinoatrial
node (3) subendocardial purkinje network (4) bundle of his (5) atrioventricular node - Answers
2,5,4,1,3
Due to the rapid absorption for a high concentration of epinephrine and the potential for adverse
