200 NBDHE Mock Board Questions and Answers, Exams of Nursing

Download 200 NBDHE Mock Board Questions and Answers and more Exams Nursing in PDF only on Docsity! Sensory impulses from a toothache are likely to be transmitted on - ANS cranial nerve V Viruses can be distinguished from all other microorganisms by virtue of their - ANS possession of only one type of nucleic acid Too little vertical angulation when taking radiographs will result in - ANS elongation Which of the following describes a Class I furcation involvement? - ANS A slight concavity is detectable, but no radiolucency is visible on the radiograph Systemic diseases can be associated with periodontal disease, since they can affect immune functions, inflammatory response and tissue organization. These include the genetic disorders - ANS Chediak-Higashi syndrome, Papillon-Leferve syndrome, and hypophosphatasia Kaposi's sarcoma is MOST commonly located on the - ANS palate Which of the following could be used for removal of burnished tenacious calculus in deep, narrow pockets with firm, fibrotic tissue - ANS periodontal file Oral manifestations of bulimia include all of the following, EXCEPT one. Which one is the EXCEPTION? - ANS Leukoedema Subgingival calculus receives its mineral content from - ANS gingival crevicular fluid A dense, fibrous, raised, skin-colored lesion located on the buccal mucosa at the height of the occlusal plane is MOST likely a - ANS fibroma The appearance of spongy rolled gingival margins and bulbous gingival papilla is the result of - ANS accumulation of tissue fluid When radiographs are being duplicated, the duplicating film is placed closest to the light source. The greatest density of the duplicated image will occur with the longest exposure to the light source. - ANS Both statements are false Periodontal debridement of the maxillary left quadrant requires administration of a local anesthetic. Which nerve block injection will NOT provide anesthesia to the area? - ANS Inferior alveolar Proper ultrasonic scaling technique is BEST described by which of the following? - ANS Light stroke pressure and multidirectional strokes Infection of a primary tooth may cause - ANS Turner's spot Alginate impressions are displaced from the mouth in a quick continuous movement to prevent - ANS distortion of the impression The main part of the facial nerve leaves the temporal bone in the facial canal through the - ANS stylomastoid foramen Facial asymmetry is commonly associated with - ANS Bell's palsy A predominant bacterium in chronic periodontitis is - ANS P. gingivalis A person with a history of oral herpes lesions of the lip feels a tingly sensation. The person should do all of the following, EXCEPT one. Which one is the EXCEPTION? - ANS Spend more time in the sun A patient with congestive heart failure will MOST likely require - ANS an upright seating position All of the following are characteristics of a root planning technique, EXCEPT one. Which one is the EXCEPTION? - ANS Lateral pressure becomes progressively heavier A continuing care schedule for a periodontal patient should be determined by the - ANS amount of inflammation seen All of the following drugs are antifungal and are used to treat candidiasis, EXCEPT one. Which one is the EXCEPTION? - ANS Didanosine (ddl) Supervision of fluoride use by small children is important to prevent which of the following? - ANS Chronic toxicity Which defect is the result of failure of the maxillary processes to fuse with the median nasal processes? - ANS Bilateral cleft lip Complications of AIDS-associated necrotizing ulcerative periodontitis (NUP) that differentiate it from the conventional non-AIDS-associated form of NUP may include - ANS sequestration of bone fragments The temporomandibular disc is attached to the - ANS mandibular condyle A patient taking amphetamines is likely to exhibit all of the following, EXCEPT one. Which one is the EXCEPTION? - ANS Mental depression For a patient taking medication daily for hypertension and no other conditions, the dental concern is - ANS greater chance of syncope While walking a patient from the reception area to the operatory, the patient becomes noticeably out of breath. Which of the following actions SHOULD occur next? - ANS Allow the patient to rest for a few minutes before proceeding to the chair, review his medical history, and make treatment decisions based on additional information obtained from the patient and physician consultation The dental hygienist has been asked to discontinue instrument sharpening because of cost concerns. All of the following are concerns associated with use of dull instruments, EXCEPT one. Which one is the EXCEPTION? - ANS Infection control All of the following are true to pit and fissure sealants, EXCEPT one. Which one is the EXCEPTION? - ANS Indicated when proximal decay exists The MOST important thing to remember when sharpening instruments chair side is - ANS to use a sterile stone Oral irrigants are effective for all of the following, EXCEPT one. Which one is the EXCEPTION? - ANS Removing attached dental biofilm Of the following teeth, which one is MOST frequently congenitally missing? - ANS Maxillary lateral incisor During an extraoral examination, swollen lymph nodes are detected beneath the chin. Which lymph nodes are these? - ANS Submental The maximum accumulated dose of radiation that a 38-year-old dental hygienist should receive is - ANS 100 Rem The ideal angle for insertion of a curette into a periodontal pocket in preparation for a scaling stroke is - ANS 0 degrees The need to increase the dose of a drug to produce the same drug effect is called - ANS drug tolerance An isolated port-hole defect in bone that exposes the underlying root of the tooth is referred to as a - ANS fenestration Blood-soaked gauze is considered biomedical waste an must be sterilized or incinerated. Blood- and saliva-contaminated gloves must be washed before being discarded in the trash. - ANS The first statement is true, the second is false The triceps brachia muscle functions to straighten (extend) the elbow joints. The muscle - ANS inserts on a bone of the forearm, the ulna Treatment for xerostomia in a patient may include - ANS cholinergics For which emergency listed below would it be better NOT to use oxygen? - ANS Hyperventilation Candida albicans is known or suspected to cause all fo the following denture-related problems, EXCEPT one. Which one is the EXCEPTION? - ANS Epulis fissuratum A patient completing a two-week regimen of amoxicillin for a periodontal abscess complains of a sore mouth. The examination reveals a thick white coating on the palate and buccal mucosa. This coating is most likely - ANS candidiasis Stenosis of the bicuspid valve is likely to initially cause a backup of blood in the - ANS left atrium, pulmonary veins, and lungs All of the following affect image sharpness, EXCEPT one. Which one is the EXCEPTION? - ANS Exposure time Embryonic cells trapped in fusion lines during facial development may become - ANS cysts A patient indicates a current history of herpes zoster. What is the condition? - ANS shingles Hypothyroidism can result in - ANS slow tooth eruption Which one of the following is the BEST aid for dental biofilm and debris removal in an area where the interdental papilla is missing? - ANS interdental brush Glycolysis is a pathway for - ANS breaking-down glucose to pyruvate During the intraoral and extraoral examination, which of the following findings would be of greatest concern? - ANS Fixed, non-movable mass of the deep cervical lymph nodes The largest group of principal fibers of the periodontal ligament (PDL), which prevents tilting and dislocation of the tooth, is the - ANS oblique group All of the following are effects of periodontal pocket lavage by an ultrasonic scaler, EXCEPT one. Which one is the EXCEPTION? - ANS Creating a smooth root surface A patient presents with a blood pressure of 90/70 and a pulse rate of 65. The patient states that he is in training for the upcoming charity marathon race. What should the dental hygienist advise the patient about his blood pressure and pulse? - ANS Both blood pressure and pulse rates are the norm for this patient During a review of the patient's dental history, the dental hygienist learns that tooth #8 was traumatized during a bicycle accident about 6 months ago. The tooth was sensitive for a week but is not sensitive now. All anterior teeth respond similarly when tested with palpation, percussion, and cold. It would be reasonable to conclude that at this time, the tooth pulp - ANS is normal A patient is a hepatitis B carrier. Which one of the following is an appropriate way to prevent cross-contamination? - ANS Avoiding use of ultrasonic scaler Professional treatment of root dentinal hypersensitivity may include all of the following, EXCEPT one. Which one is the EXCEPTION? - ANS Zinc-oxide eugenol When a radiograph is only partially immersed in developer but fully immersed in fixer, the resultant processed film will exhibit a black area. Radiographs that are inadequately rinsed after fixing will develop yellow-brown stains later. - ANS The first statement is false, the second is true Which of the following palpation technique best describes bidigital palpation? - ANS Tissues are grasped between finger(s) and thumb to examine tissues An infrabony pocket in which the facial and lingual alveolar bone is missing is classified as a(an) - ANS two-walled pocket For removal of a heavy ledge of calculus on the lingual surface of the mandibular anterior teeth, which of the following is the best tip and power combination? - ANS Standard tip at medium to high power Polishing of amalgams helps prevent corrosion and improves longevity of amalgam restorations. Overheating of the amalgam during polishing can result in damage to odontoblasts. - ANS Both statements are true Endogenous intrinsic stain is associated with all of the following, EXCEPT one. Which one is the EXCEPTION? - ANS caries Nicotine stomatitis presents in the oral cavity as - ANS tiny nodules with red center and diffuse grayish white coating Following posterior superior alveolar nerve block injection, a patient complains of inadequate "numbing" and receives additional cartridges of 2% lidocaine with 1:100,000 epinephrine. The patient begins to tap incessantly, exhibits restlessness and becomes drowsy, and then suffers a convulsion. These symptoms are MOST likely a(an) - ANS toxicity reaction to the local anesthetic agent Sulcular epithelium is generally - ANS nonkeratinized In a class II, Division II occlusion, which of the following would be present within the dentition? - ANS One or more maxillary anterior teeth would be retruded, and the mandible would be retruded The initial vascular response during acute inflammation is initiated by the release of - ANS histamine Which one of the following bacteria influences root caries? - ANS Actinomyces viscosus When a tooth is etched for sealant placement, primary teeth are etched for a longer period than are permanent teeth. Rinsing a saliva-contaminated etched surface immediately before sealant placement will remove the contamination - ANS The first statement is true, the second is false The dental biomaterial bis-GMA is the - ANS resin in pit and fissure sealants During exploratory strokes made with either a curette or explorer, the modified pen grasp should be kept very light so that the hygienist can feel the vibration created as the instrument moves over the tooth. There is a correlation between the tightness of the grasp on the instrument and the amount of lateral pressure applied against the tooth. - ANS Both statements are true Which one of the following is a coating material on dental implants that improves bonding with bone? - ANS Hydroxyapatite When the direction migration of polymorphonuclear leukocytes toward attracting molecules such as bacteria is impaired, the condition is referred to as a(an) - ANS chemotactic defect All of the following muscles are responsible for opening and closing the jaws, EXCEPT one. Which one is the EXCEPTION? - ANS Thyrohyoid Bifurcated roots are common to maxillary first premolars. Mandibular second premolars often have three cusps - ANS Both statements are true What characteristic do chronic periodontitis and localized aggressive periodontitis share? - ANS Loss of attachment Secretions of the parotid gland are noted to be - ANS primarily serous Mrs. Smith has a history of hypertension and takes medication to treat it. She complains that her gums look swollen, and an intraoral exam reveals gingival overgrowth. The medication causing this adverse reaction is most likely - ANS nifedipine (Procardia) The common factor that enhances colonization of dental plaque (biofilm) by a bacterial species is the - ANS ability to adhere through a specialized mechanism Which of the following oral manifestations, when it persists longer than one month in the oral cavity, is recognized by the Centers for Disease Control and Prevention to be AIDS defining? - ANS Herpes simplex virus lesions With which condition in Sjogren's syndrome most commonly associated? - ANS Xerostomia Mucosa of the oral cavity floor is considered - ANS lining mucosa For a mandibular removable partial denture with calculus on the anterior replacement teeth, the preferred method of professional cleaning would be to - ANS use an ultrasonic bath with a tartar remover solution John was concerned and went to his physician, since he could not shake what he thought was the flu. He tested negative for HIV 6 months after an exposure to the virus. When he was tested again 6 months later, however, the results were positive. If an error, the first test result was - ANS false negative A collimator on an x-ray unit - ANS restricts the size of the x-ray beam Purpura in the oral cavity describes a - ANS reddish purple discoloration On a mandibular first molar, a furcation is located in the - ANS cervical third of the root, buccally Magnification on dental radiographs can be decreased by - ANS increasing the source-object distance The process of copying genetic information from DNA to RNA is called - ANS transcription Accurate shadow casting requires meeting all of the following rules, EXCEPT one. Which one is the EXCEPTION? - ANS Greatest tooth-film distance Use of an air-polish is contraindicated because of the possible systemic absorption of sodium bicarbonate for patients with all of the following conditions, EXCEPT one. Which one is the EXCEPTION? - ANS Immunosuppression Providing the patient active involvement in treatment decisions is an example of - ANS autonomy At the post treatment evaluation following initial debridement therapy of 12 periodontal pockets of 5 to 6 mm depth, two areas of bleeding are found. The next step should be - ANS retreatment of bleeding areas and reevaluation in a month After quadrant scaling, the patient is unable to close his jaw and complains of severe pain. This condition is called - ANS subluxation Which of the following situation can ensure that the instruments are being properly sterilized in the dental office? - ANS Biological indicators test negative Which of the following gypsum products has the lowest compressive strength? - ANS Type I Immediate (Type I) hypersensitivity is associated with all of the following, EXCEPT one. Which one is the EXCEPTION? - ANS Release of T cell chemical mediators The number of furcation's in a maxillary first molar is - ANS three When a patient experiences a seizure, all of the following should be done, EXCEPT one. Which one is the EXCEPTION? - ANS Restrain the patient to minimize movement One of the following medications does not cause gingival hyperplasia. Which one is the EXCEPTION? - ANS Diuretics Epstein-Barr virus is the causative agent in verruca vulgaris and condyloma acumminatum. Surgical excision is the primary treatment modality. - ANS The first statement is false, the second is true The calculus-controlling ingredient in some tartar control dentifrices is - ANS pyrophosphate A patient who receives radiation therapy to the oral cavity and salivary glands may experience lifelong - ANS salivary gland dysfunction and risk of osteoradionecrosis All of the following are true of localized aggressive periodontitis, EXCEPT one. Which one is the EXCEPTION? - ANS Heavy dental biofilm buildup and inflammation are evident Although epithelial healing after surgery takes place in approximately 7 days, complete osseous healing may take up to - ANS 4-6 months A composite restoration of the mesial contact area of tooth #11 is a - ANS Class III restoration Panoramic radiographs are LEAST useful for detecting Correct! - ANS Interproximal bone loss Discussion of which one of the following smoking-related issues would MOST appeal to this population? - ANS Halitosis Educating children about tobacco use and its effects is an excellent way of teaching them the dangers of smoking. This will ensure that the children will avoid cigarette smoking in future - ANS The first statement is true, the second is false The number of middle school students who began smoking in 2008 is considered - ANS incidence Students who attend the "dangers of cigarette smoking" presentation will decrease their use of cigarettes. This statement is an example of a(an) - ANS hypothesis Testlet 3 Residents in this middle-class, East Coast community have an average annual income of $27,000. Public facilities include a regional medical center, skilled nursing facilities, nursing homes, home health services, dental clinics, and a psychiatric facility. There are 12 elementary, 2 middle, and 3 high schools, as well as a vocational/technical school, a community college, and a university. The region has a moderate climate. Ten years ago, anti fluoridation legislation was passed and the city water fluoridation was discontinued. Currently, the water contains less than 0.3 ppm natural fluoride. The local elementary schools participate in a weekly fluoride mouth-rinsing program. Some local dentists and pediatricians prescribe fluoride supplements, but compliance is low. A study to determine the caries and periodontal status of community residents by age is being planned. Which sampling method can best accomplish this task? - ANS Stratified random Which epidemiological index would be the BEST choice for evaluation caries prevalence of the senior population? - ANS Root caries index (RCI) What is the recommended dosage of supplemental fluoride for a 5-year-old child in this community? - ANS Supplementation of 0.5 mg/day Prior to assessing the dental needs of the residents, two examiners practice performing the index on four volunteers. the examiners compare their techniques and results with each other until both examiner feel their techniques are equivalent. This is an example of - ANS calibration A comparison of the dental caries rate in two groups of students (those who received a prescription supplemental fluoride and those who did not) found a 3x higher rate of caries in those who did not receive supplemental fluoride than in those who did. This is an example of - ANS correlation analysis Which one of the following has the MOST influence on dental utilization rates? - ANS Socioeconomic status When influenza "X" reached the East Coast this week, thousands of school aged children and institutionalized elders were hospitalized with high fevers, dehydration, and pneumonia. the BEST epidemiological term to describe this occurrence is - ANS epidemic Which of the following nerves supplies the intrinsic muscles of the tongue - ANS Hypoglossal