NBDHE Mock Exam Review with 100% Correct Answers, Exams of Nursing

Download NBDHE Mock Exam Review with 100% Correct Answers and more Exams Nursing in PDF only on Docsity! NBDHE Mock Exam Review with 100% Correct Answers.Latest Update 2024.Assured Success. Which is the functional unit of striated muscle? - Correct answer A. A band B. I band C. H Zone D. Sarcomere D. Sarcomere Slightly damaged tissue completely returns to its normal structure and function in which healing process? - Correct answer A. Primary intention B. Regeneration C. Repair D. Secondary intention B. Regeneration In a normal differential blood count, which is the most numerous white blood cell? - Correct answer A. Basophils B. Lymphocytes C. Monocytes D. Neutrophils D. Neutrophils The two buccal roots are normally about the same length in: - Correct answer A. The maxillary first molars only B. the maxillary second molars only C. the maxillary third molars only D. both maxillary first and second molars B. the maxillary second molars only The most common autopsy finding in instances of sudden death as a result of myocardial infarction is: - Correct answer A. aneurysm of the heart wall B. coronary thrombosis C. fibrous pericarditis D. valvular prolapse B. coronary thrombosis Which is not a characteristic of salivary glycoproteins? - Correct answer A. block binding of bacteria to pellicle B. enhance binding of bacteria to tooth surfaces C. interact with calcium and phosphate in hydroxyapatite D. result from lysis of bacterial cell walls B. enhance binding of bacteria to tooth surfaces P a g e 1 | 15 Each of the following statements is correct regarding saltatory conduction except one. What is the exception? - Correct answer A. it involves the nodes of Ranvier B. it is associated with unmyelinated axons C. it is energy saving D. it is faster B. It is associated with unmyelinated axons Each of the following is a rule for antibiotic selection when managing an oral infection except one. Which is the exception? - Correct answer A. debride infectious debris B. provide effective environment for host immune response C. select agent to which infecting organism is susceptible D. select agent with broadest spectrum of activity D. Select agent with broadest spectrum if activity Thyroxine increases each of the following except one. Which is the exception? - Correct answer A. metabolic rate and heart production B. oxygen consumption, breathing, and cardiac output C. production of thyroid stimulating hormone by the pituitary gland D. protein synthesis and enzyme production by cells C. production of thyroid stimulating hormone by the pituitary gland Which is correct concerning the primitive groove? - Correct answer A. assists in the formation of trilaminar germ disc B. located on the endoderm C. located on the mesoderm D. precursor of the bilaminar germ disk D. precursor of the bilaminar germ disk Which is a pathologic wearing away of tooth structure through some abnormal mechanical process? - Correct answer A. Abrasion B. Attrition C. Bruxism D. Erosion B. Attrition Which characteristic of bacteria influences relative numbers in early plaque? - Correct answer A. adherence to pellicle B. formation of bacterial coaggregations C. multiplication in an aerobic environment D. survival in an acid environment D. adherence to pellicle How many milligrams of epinephrine is contained in a dental cartridge of prilocaine with 1:200,000 epinephrine? - Correct answer A. 0.005 P a g e 2 | 15 C. Norovirus D. Rhinovirus D. Rhinovirus Which is an anticholinergic drug used to reduce airway secretions? - Correct answer A. acetylcholine B. atropine (anti-cholinergic) C. Neostigmine (cholinergic) D. Pilocarpine (cholinergic) B. Atropine which term refers to complete obstruction of blood flow to a particular area? - Correct answer A. Aneurysm B. Hematoma C. infarction D. Petechiae C. infarction Which cause of macroglossia is developmental? - Correct answer A. hemangioma B. Myxedema C. neurofibromatosis D. primary herpetic stomatitis C. neurofibromatosis Which leukemia most frequently infiltrates the gingivae and causes gingival swelling? - Correct answer A. Aleukemic B. Granulocytic C. Lymphocytic D. Monocytic D. Monocytic Which structure appears most radiopaque on a radiograph? - Correct answer A. Cementum B. Dentin C. Enamel D. Trabecular bone C. Enamel Bleeding upon probing is a key diagnostic sign of: - Correct answer A. alveolar bone loss B. gingival inflammation C. Inactive periodontitis D. traumatic occlusion B. Gingival inflammation P a g e 5 | 15 In evaluating sealant placement, a dental hygienist should assess each of the following except one. Which is the exception? - Correct answer A. occlusal interference B. penetration depth C. pit and fissure coverage D. proximal overrun B. Penetration depth A topical anesthetic applied in the gingival sulcus on the facial surface of tooth 25 will provide a few minutes anesthesia for: - Correct answer A. gingival sensitivity B. pulpal pain C. root planing D. the lingual sulcus A. gingival sensitivity Which oral hygiene aid is contraindicated as a bacterial plaque control tool for a patient with dental implants? - Correct answer A. Pipe cleaner B. Rubber tip stimulator C. Toothpick-in-holder D. Waxed dental floss A. pipe cleaner The final stage in plaque biofilm formation is: - Correct answer A. establishment of unattached plaque biofilm B. extension to the apex of the root C. mineralization to form calculus D. selective adherence of pathogenic bacteria C. mineralization to form calculus Which is the agent of choice for final polishing of gold restorations? - Correct answer A. aluminum oxide B. flour of pumice C. silex D. silicon dioxide E. zirconium silicate A. aluminum oxide In the pathogenesis of periodontal infections, which best explains the role of systemic factors? They - Correct answer A. alter the position of the gingival margin B. alter tooth mobility C. determine the pattern of bone loss D. directly affect pocket depth E. modify the patient's response to local factors E. P a g e 6 | 15 Each of the following is appropriate for implant home maintenance except one. which is the exception? - Correct answer A. chlorhexidine rinse B. powered toothbrush C. tufted floss D. ultrasonic scaler D. Ultrasonic scaler During the dental appointment, a conscious diabetic patient is demonstrating signs of hypoglycemia and is unable to respond to questions. Which should the dental hygienist administer prior to the arrival of emergency medical services (EMS)? - Correct answer A. IM glucagon B. IV glucose C. oral carbohydrate D. oral insulin C. oral carbohydrate The maxillary first premolar normally occludes with which mandibular teeth? - Correct answer A. canine and first premolar B. canine and lateral incisor C. first and second premolars D. second premolar and first molar C. first and second premolars One purpose of a high strength base is to: - Correct answer A. neutralize acids from cements B. provide thermal protection for the pulp C. seal open margins D. stimulates secondary dentin formation B. provide thermal protection for the pulp Fluoride toxicity manifests in bones as - Correct answer A. hypercalcemia B. hypocalcemia C. osteoporosis D. osteosclerosis A. hypercalcemia Which must occur before designing a treatment plan for a patient? - Correct answer A. assess baseline data B. Case presentation C. determine financial status D. research insurance coverage A. assess baseline data Assisting an arthritic patient with toothbrushing might include each of the following except one. Which is the exception? - Correct answer A. educate caregiver on proper toothbrushing technique to provide assistance P a g e 7 | 15 B. Fluoride C. Glyoxide D. Topical anesthetic A. Eugenol A dental hygienist seats a patient to obtain an accurate blood pressure reading. Each of the following steps is necessary except one. Which is the exception? - Correct answer A. Cuff is deflated at a rate of 2-3mm Hg/sec B. Diaphragm of stethoscope is placed over brachial artery C. Patient's arm is at his/her chest level D. Sphygmomanometer has a cuff width 20 percent smaller than the circumference of the patient's upper arm D. If the film was placed correctly but lacks desired mesial structures, which error occurred? - Correct answer A. horizontal angle positioned too distally B. horizontal angle positioned too mesially C. vertical angle positioned too high D. Vertical angle positioned too low A. horizontal angle positioned too distally Overjet refers to the: - Correct answer B. horizontal distance between the lingual surface of the maxillary incisors and the facial surface of the mandibular incisors Fluoridation of municipal water supplies is often achieved by adding appropriate amounts of - Correct answer A. calcium fluoride B. monofluorophosphate fluoride C. sodium silicofluoride D. stannous fluoride C. sodium silicofluoride Each of the following is true about the utilization of dental services in the USA except one. Which is the exception? - Correct answer A. age and gender do not play a significant role in utilization of dental services B. demand for services is influenced by third-party coverage C. each generation demands a different variety of dental services D. Higher education and income is associated with better utilization rate D. Higher education and income is associated with better utilization rate According to the hydrodynamic theory, what leads to the sensation of pain? - Correct answer A. Calculus deposits B. Fluid flow within the dentinal tubules C. increased activity of odontoblasts D. Microleakage of bacterial endotoxins B. P a g e 10 | 15 Which is characterized by a progressive weakness and loss of the use of symmetrical groups of muscles? - Correct answer A. Autism B. Cerebral palsy C. Duchenne muscular dystrophy D. Scleroderma C. Ketoacidosis is commonly associated with: - Correct answer A. Addisons disease B. Cushing disease C. Diabetes D. Sjogren syndrome C. diabetes Patients with diabetes type 1: - Correct answer A. cannot be treated successfully B. may only receive non-surgical periodontal treatment C. must only be given local anesthetics without vasoconstriction D. show an increased incidence and severity of periodontitis D. show an increased incidence and severity of periodontitis Which is the primary reason to place sutures following periodontal surgery? - Correct answer A. control bleeding B. position the flap C. prevent infection D. Prevent trauma C. prevent infection Which factor is the least important to the setting time of dental stone? - Correct answer A. chemical accelerator B. chemical retardant C. method of spatulation D. Water temperature E. water-powder ratio C. method of spatulation A continuing care patient complains of root hypersensitivity. Upon examination, the DH sees plaque accumulation near the gingival margins of many teeth. Each of the following may be considered for this patient except one. Which is the exception. - Correct answer A. Educate the patient about plaque removal B. provide iontophoresis treatment C. recommend a desensitizing dentifrice D. remove plaque and apply fluoride B. provide iontophoresis treatment P a g e 11 | 15 The space between two adjacent teeth that are not in contact is - Correct answer A. cervical embrassure B. a diastema C. an open bite D. torsoversion B. a diastema Nitrous oxide enters air-filled cavities within the body causing an increase in pressure or volume. Which area is most affected by an increase in pressure due to a rigid confine? - Correct answer A. corneal space B. intestinal tract C. maxillary sinus D. pleural space D. Pleural space Each of the following is considered to be an implied contract between the dental hygienist and the patient except one. What is the exception? - Correct answer A. keep patients informed of treatment progress B. make appointment referrals when necessary C. proper licensing to perform treatment D. use of experimental or cutting edge dental procedures D. use of experimental or cutting edge dental procedures Billing the insurance company for treatment that was not performed is - Correct answer A. breach of contract B. fraud C. negligence D. technical battery B. fraud The safety device that prevents inadvertent attachment of the N2O cylinder to the O2 yoke on a portable N20/O2 sedation unit is called the - Correct answer A. diameter index safety system B. oxygen fail-safe system C. pin index safety system D. quick connect positive-pressure oxygen system C. pin index safety system Which ingredient is utilized for air-powder polishing? - Correct answer A. Aluminum oxide B. calcium carbonate C. flour of pumice D. sodium bicarbonate D. sodium bicarbonate The steam-under pressure method of sterilization is primarily used for which products? - Correct answer A. jointed and geared instruments P a g e 12 | 15