ABDSM PRACTICE EXAM QUESTIONS WITH CORRECT DETAILED ANSWERS | ALREADY GRADED A+RECENT VERSION

ABDSM PRACTICE EXAM QUESTIONS WITH CORRECT DETAILED ANSWERS | ALREADY GRADED A+RECENT VERSION 1) Which of the following statements is true regarding a modified mallampati classification of the oral pharynx? A. Mallampati II allows visualization of only the hard palate B. Malampati III allows visualization of only the hard palate C. Malampati classifications are taken with the patient sedated and reclined D. Mallampati classifications of IV have greater odds ratio than Mallampati classifications of I for severe OSA - answer D. Mallampati classifications of IV have greater odds ratio than Mallampati classifications of I for severe OSA 2) What 8 item questionnaire was developed to perioperatively screen for risk of OSA? A. ESS B. STOP-BANG C. MSLT D. Berlin - answer B. STOP-BANG 3) In the pathophysiology of sleep apnea, airway patency and stability is promoted by which factor? A. Increased lung volume B. Shorter mandible C. Increased parapharyngeal fat deposition D. Negative inspiratory pressure E. Reduced pharyngeal muscle dilator activity - answer A. Increased lung volume 4) Oral appliance therapy commonly provides successful sole therapy for which of the following sleep-related breathing disorders? A. Primary central sleep apnea B. Cheyne-Stoke periodic breathing C. Obesity hypoventilation D. Overlap syndrome (OSA and COPD) E. None of the above - answer E. None of the above 5) Which of the following is true about OSA and HTN? A. Ambulatory BP is increased in OSA patients primarily due to increased salt intake associated with elevated ghrelin levels B. Ambulatory BP normally increases in the early AM before awakening - this increase is blunted in OSA C. Untreated OSA is associated with a similar risk of HTN at all severity levels D. The risk of HTN in untreated OSA is due to intermittent hypoxia, sympathetic overactivation, inflammation, and other complex factors - answer D. The risk of HTN in untreated OSA is due to intermittent hypoxia, sympathetic overactivation, inflammation, and other complex factors 6) Across a general population, what is the most common sleep disorder? A. RLS B. Narcolepsy C. Delayed sleep phase syndrome D. Insomnia E. Obstructive sleep apnea - answer D. Insomnia 7) Measurement has shown that patients with sleep apnea have smaller upper airways than those without sleep apnea but manage to keep an open airway during wakefulness by: A. Mouth Breathing B. Increased muscle tone on inspiration C. Increased blood flow to the soft tissue D. Frequent bruxing - answer B. Increased muscle tone on inspiration 8) Key features of sleep apnea as recorded during an in-lab sleep study include marked reduction or absence of air flow, arousals from sleep, slowing of heart rate and: A. Choking or gasping for air B. Oxygen desaturation C. Flattening of the nasal pressure signal D. Flailing of the arms and legs E. Sawtooth waves in the EEG - answer B. Oxygen Desaturation 9) Who publishes the CPT codebook? A. The Centers for Medicare and Medicaid Services B. The American Medical Association C. The Office of the Inspector General D. The Durable Medical Equipment Service E. The American Academy of Sleep Medicine - answer B. The American Medical Association 10) A 48 year old man is treated with OAT for his moderate OSA. On repeat sleep testing, his apnea-hypopnea index (AHI) has decreased to 3 events per hour, and he reports resolution of snoring and daytime sleepiness. What is the most reasonable dental-medical sleep medicine follow up regimen for this patient? A. As needed B. Every 6 months for the first year, then annually C. Monthly for the first 6 months, then every 6 months D. Every other year - answer B. Every 6 months for the first year, then annually 11) Which of the following would exclude oral appliance therapy as a first treatment trial for OSA? A. Xerostomia B. Edentulism C. Micrognathia D. Steep mandibular plane angle - answer B. Edentulism 12) Reviewing your patient's diagnostic polysomnogram, you note more than a 50% epoch consists of alpha waves. According to the current PSG scoring guidelines, the patient is in which stage of sleep? A. Stage I NREM B. Stage II NREM C. Stage III NREM D. Stage REM - answer A. Stage I NREM 13) A patient presents for an evaluation to determine their candidacy for an oral appliance to treat their mild OSA. During your examination, you note the presence of TMD. This might include the following: A. Pain in the TMJ B. Pain in the muscles of mastication C. Anomalies in mandibular movement D. All of the above - answer D. All of the above 14) The qualified dentist designation (QDD) came about in response to the 2015 practice guidelines paper recommending that physicians refer patients to dentists "qualified" to treat sleep related breathing disorders. This was based upon recognition of which of the following? A. Older dentists have more experience than younger dentists B. All dentists have the skills they need to deliver knowledgeable care C. Oral appliance efficacy data collected in studies is obtained by dentist with extensive clinical experience D. Training in dental schools on oral appliance therapy has become common place - answer C. Oral appliance efficacy data collected in studies is obtained by dentist with extensive clinical experience 15) The 2015 Practice Guidelines created through cooperative effort of the AASM and AADSM suggest a physician should seek collaboration with a qualified dentist, described as someone who has at least: A. Board certification B. Facility accreditation C. Completion of a 1 yr residency in dental sleep medicine D. Additional training or experience in dental sleep medicine - answer D. Additional training or experience in dental sleep medicine 16) An understanding of loop gain is important to the clinical practice of dental sleep medicine because: A. It excludes the possibility of cheyne stokes breathing in patients with severe OSA B. It is the basis of the Mallampati classification system C. It defines the number of sequential obstructive apneas in an epoch D. It contributes to the multifactorial nature of sleep related breathing disorders - answer D. It contributes to the multifactorial nature of sleep related breathing disorders 17) With regards to biomechanical properties of the upper airway, which statement is true? A. Sleep apnea patients paralyzed during general anesthesia (neural drive removed) demonstrated airway compliance similar to healthy subjects B. Sleep apnea patients had more negative closing pressures C. Sleep apnea patients demonstrate a more positive Pcrit D. There is no correlation between collapsibility when awake and collapsibility when asleep - answer C. Sleep apnea patients demonstrate a more positive Pcrit 18) Tagged MRI recently showed 3 patterns of tissue formation during mandibular advancement. Which of these was NOT observed? A. The whole tongue moved forward "en bloc" B. Only the superior posterior portion of the tongue moved forward C. The posterior tongue did not move, but the whole tongue elongated D. Only the inferior posterior portion of the tongue moved forward - answer B. Only the superior posterior portion of the tongue moved forward 19) In Van Heasendonck's 2015 systematic review of oral appliance health benefits, mean disease alleviation was calculated using the following: A. An embedded microsensor B. A highly compliant patient population C. Patient's diaries of hours of nightly device use D. Patient's attestations to hours of nightly device use - answer A. An embedded microsensor 20) Caffeine promotes wakefulness by suppressing or blocking: A. Thyroid stimulating hormone B. Growth hormone C. Orexin D. Adenosine - answer D. Adenosine 21) A study design where one or more population samples are followed prospectively to determine which participant's exposure characteristics (risk factors) are associated with a disease or outcome is called a: A. Randomized control trial B. Non-randomized control trial C. Cohort study D. Case control study - answer C. Cohort study 22) In an experiment where participants are randomly assigned, one group receives the drug or procedure, a placebo group's treatment is disguised to resemble the drug or procedure being investigated and a control group receives nothing. Members of each group are prevented from knowing whether they are receiving active therapy. This would be called a: A. Randomized control trial B. Cohort study C. Randomized case report D. Blinded triple trial - answer A. Randomized control trial 23) The masseter muscle originates at: A. The temporal fossa B. The zygomatic arch C. The mylohyoid ridge D. The coronoid process - answer B. The zygomatic arch 24) In Sheats et. al., a morning occlusal guide is a common side effect management modality. Which of the following is CORRECT? A. A MOG encompasses many custom made appliances and pre-fabricated devices used in an effort to reposition the mandible into its habitual pre-treatment position B. A MOG has a very specific design as established by the AADSM consensus committee on side effects C. A morning occlusal guide was shown to stretch the lateral pterygoid muscle to full functional length with EMG studies D. Use of an MOG assures the patient that there will be no bite changes as a result of use of an oral appliance - answer A. A MOG encompasses many custom made appliances and pre-fabricated devices used in an effort to reposition the mandible into its habitual pre-treatment position 25) All of the following exacerbate sleep disordered breathing, EXCEPT: A. Use of stimulants within 1 hr of bedtime B. Consumption of a heavy meal within 1 hr of bedtime C. Use of melatonin within 1 hr of sleep onset D. Use of alcohol, especially as a means to induce sleep - answer C. Use of melatonin within 1 hr of sleep onset 26) A patient presents to consult with you regarding oral appliance therapy for their moderate OSA. They report intermittent "jaw pain" for the past 6 weeks. You should explain that: A. It is best to postpone treatment until the pain has resolved B. An oral appliance is contraindicated for a patient that has active TMD C. A comprehensive oral-facial evaluation is necessary to ID the source of their jaw pain before considering or proceeding with oral appliance therapy D. An oral appliance will improve their jaw pain if the source of the pain is muscular, and not originating from the TMJ - answer C. A comprehensive oral-facial evaluation is necessary to ID the source of their jaw pain before considering or proceeding with oral appliance therapy