click below
click below
Normal Size Small Size show me how
testing
testing procedures
Term | Definition |
---|---|
peak flow testing | this test can be used to monitor lung function in the home. the meter measures the forced expiratory volume. |
forced expiratory volume | the amount of air that can be forcibly exhaled |
peak flow testing instructions | wear nonrestrictive clothing, begin with the marker at the bottom of the scale, in an upright sitting or standing position, take a deep breath and forcefully blow out of the mouth, record the number where the marker is, repeat two to three times |
spirometry testing | an automated test that produces a graphic result. no large meals 2 hr before test, no smoking 1 hr, and discontinue the us of bronchodilators or other breathing therapies for at least 6 hr. procedure is the same as peak flow testing |
vision tests | performed in ambulatory care to detect visual abnormalities of the eye. |
near vision testing | used to test for presbyopia and hyperopia. ask the patient to read printed material in various sized 1416 in away from the eyes without corrective lenses. test each eye separately, then both together. the level at which the patient can read the smallest. |
distance vison testing | evaluated for myopia. patient stands 20 ft from a chart and identify letter, shapes, or the direction an "E" is pointing. test eyes separately and together. can wear corrective lenses. the patient can miss one item and still pass. |
recorded vision | recorded as a fraction 20/20 represents normal vision |
color vision testing | screening is done by testing the patient on 11 plates within an Ishihara book. if the patient misses 4 or more, there might be a color deficiency and further testing is warranted. |
most common type of color blindness | red-green deficiency |
Ishihara test | a set of templates with patters or numbers embedded within them to test for color blindness. |
visual field testing | aka perimetry testing. detects eye diseases such as glaucoma. |
instructions for visual field testing | instruct patient to look straight ahead and respond to instructions. in an automates test, patients respond to seeing lights flashing. in a manual test, patients identify when they can see hands or fingers in their peripheral vison. |
tympanometry | the process of recording the movement of the tympanic membrane through pressure variances in the external ear canal. |
tuning forks | are used to determine the patient's ability to hear tones transmitted through air and bone conduction. the vibrating tuning fork is placed on top of the head or on the mastoid process to test hearing. |
audiometry | can respond to directions of pushing a button or raising a hand to acknowledge when various tones are heard through headphones. level of hearing is documented in decibels and frequency in hertz. |
adult normal hearing | 25 decibels |
normal child hearing | 15 decibels |
normal tympanogram | produces a peak on the graph |
abnormal tympanogram | produces a flat line |