NBDHE Practice Questions + Answers Graded A+

3 characteristics to consider when selecting an instrument handle are a. weight, diameter and texture b. weight, length and diameter c. length, diameter and texture d. weight, diameter, and length - Weight, diameter and texture A 34 year old client with early chronic perio who smokes and has challenges with self care is new to your practice. All of the following initial or nonsurgical perio therapies are appropriate to recommend for this client except one. Which is the exception? A. Topical antimicrobial mouthrinse B. Gingival curettage C. Scaling and perio debridement D. Selective stain removal - Gingival curettage - has no significant benefit over scaling, debridement and root planning in the treatment of chronic perio A 58 year old male requires extensive perio treatment. He has been on anticoagulant drug therapy and is taking warfarin (Coumadin). In order to avoid post treatment hemorrhage, the RDH should first A. Prescribe vitamin K B. Ask him to discontinue taking the drug C. Ask for a determination of his prothrombin time D. Consult his doctor about discontinuing medication - Consult his doctor about discontinuing medication A clinician decides to use a hand instrument to remove a tenacious, moderate calculus deposit on the facial of #31. The calculus deposit is located supra on the crown. Which of the following instruments would you choose? A. Universal curet with short lower shank length B. Standard Gracey 13/14 C. Rigid gracy curetD. Posterior sickle - Posterior sickle A dental image that demonstrates many shades of gray is said to have a. high contrast b. low contrast c. high density d. low density - Low contrast A dose-related reaction that produces undesirable effects caused by the action on nontarget organs is called a. side effect b. drug allergy c. toxic reaction d. therapeutic effect - A side effect A drug with anticholinergic side effects might exhibit all of the following except one. Which is the exception? A. Mydriasis B. Salivation C. Tachycardia D. Constipation - Salivation - with cholinergic agents A facultative anaerobe grows in the presence of a. oxygen b. no oxygen c. no oxygen or oxygen d. low concentrations of oxygen - oxygen or no oxygenA negatively skewed distribution has a curve that is shifted to the left. The curve of a negatively skewed distribution results from more scores falling in the lower range. A. Both parts are true B. Both parts are false C. First part is true, the second is false D. First part is false, the second is true - -Both parts are false