منابع مشابه
Theory and practice of pure tone audiometry
Pure tone audiometry indicates what hearing thresholds (dB) are required to just be able to perceive a tone at different frequencies (Hz). A pure tone audiology threshold at a specific frequency is the decibel level at which a sound is perceived 50% of the time. The decibel scale used in pure tone audiometry is dB Hearing Level (dB HL). The dB HL intensity scale is based on normal human hearing...
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BIA is easy, non-invasive, relatively inexpensive and can be performed in almost any subject because it is portable. Part II of these ESPEN guidelines reports results for fat-free mass (FFM), body fat (BF), body cell mass (BCM), total body water (TBW), extracellular water (ECW) and intracellular water (ICW) from various studies in healthy and ill subjects. The data suggests that BIA works well ...
متن کاملFrequency of Errors in Clinical Laboratory Practice
Background and Objective: Laboratory errors are one of the major factors that affect the diagnosis, prognosis, treatment and monitoring in patients.The objective of study is to evaluate the frequency and type of errors in different phases of testing at the Pathology Department of the Shalamar Hospital, Lahore and to evaluate the causes of errors. Methods: This observational study was carrie...
متن کاملPure tone audiometry: comparison of general practice and hospital services.
Pure tone audiometry was obtained for both ears of 32 children by a general practitioner using a simple audiometer in his surgery, and by audiometricians in a hospital department on the same day. Comparing the worst hearing threshold at any of the three tested frequencies, the general practitioner did not find any ears to hear more than 10 dB better than the hospital (no false negatives). Howev...
متن کاملEvaluation of pure tone audiometry and impedance screening in infant schoolchildren.
STUDY OBJECTIVE The aims were (1) to evaluate impedance measurements against pure tone audiometry as a screening method for the detection of middle ear changes associated with hearing loss in infant school children; (2) to estimate the costs of the health authority of each method. DESIGN The study involved two stage screening in which both methods were offered, pure tone audiometry being carr...
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ژورنال
عنوان ژورنال: Proceedings of the Royal Society of Medicine
سال: 1966
ISSN: 0035-9157
DOI: 10.1177/003591576605901014