NBC-HIS Sample Board 2025(Questions and answers) LATEST UPDATE

A patient comes to the office after losing all hearing in the left ear over a period of about six weeks. The hearing in the right ear is within normal limits. The patient has been to an ENT doctor and has been given medical clearance to seek amplification. The only viable option is a CROS fitting. The patient is reluctant to comply. Which of the following option(s) should be included in counseling the patient? Choose ALL that apply. A May help the patient feel more balanced B. A hearing aid will not help the left ear C. Will enable the patient to hear from the left side D. Will restore the hearing in left ear to near normal - ️️A May help the patient feel more balanced B. A hearing aid will not help the left ear C. Will enable the patient to hear from the left side A patient who has worn hearing aids for a long time reports to your office saying that his ears are "stopped up." He recently had a cold. Which of the following will give the MOST information about this patient's complaint? A. Real ear measurement B. Impedance audiometry C. Pure tone air conduction audiometry D. Pure tone bone conduction audiometry - ️️B. Impedance audiometry The MOST common cause of sudden loss of hearing at 4000Hz is: A. Presbycusis B. Noise induced C. Acoustic trauma D. Acoustic neuroma - ️️C. Acoustic trauma During the course of taking a case history, which of the following information is LEAST important? A. Any unilateral tinnitus experienced B. Any vertigo symptoms C. Concussion in the previous six months D. Sudden hearing Loss - ️️C. Concussion in the previous six months A younger mother comes in concerned that her hearing has gone down. In taking her history, it's found that her mother also developed a hearing loss after the birth of her first child. What would be the MOST probable etiology of this problem? A. CholesteatomaB. Otitis media C. Meniere's disease D. Otosclerosis - ️️D. Otosclerosis Which of the following conditions would NOT be a concern in establishing a pure tone air conduction threshold? A. Collapsed eternal auditory meatus B. Congenital atresia C. Otosclerosis D. Impacted cerumen - ️️C. Otosclerosis Which of the following statements is FALSE when talking about audiometric testing? A. Headphones and insert earphones should produce comparable results B. Bone conductor placement can affect the test results C. Insert earphones can give more accurate results when testing a collapsed ear canal D. Ambient noise is more of a problem with insert earphones - ️️D. Ambient noise is more of a problem with insert earphones A large dip at 6000 Hz in one ear only, with a positive tone decay, is indicative of: A. Acute otitis media B. Industrial deafness C. A possible retrocochlear tumor D. Acoustic trauma - ️️C. A possible retrocochlear tumor When troubleshooting a hearing instrument, the battery current drain was measured. A reading of 0.00 MA would MOST likely indicate which of the following? A. Bad microphone B. Bad receiver C. Plugged acoustic filter D. Dead instrument - ️️D. Dead instrument Which programmable adjustment would BEST help control loud sharp sounds? A. Adjust the knee point higher B. Reduce low frequencies C. Increase the compression ratio D. Reduce gain - ️️C. Increase the compression ratio During otoscopic inspection, which ONE of the following is NOT a consideration for earmold selection? A. Volume of acoustic cavity B. Texture of auricle C. Compliance of the tympanumD. Depth of concha - ️️C. Compliance of the tympanum A problem that may be caused by shrinking earmold tubing is: A. Harmonic distortion B. Changing response of the instrument C. Increasing gain D. Soreness at top of pinna - ️️D. Soreness at top of pinna