Most otologists agree that the Hallpike quantitative biterminal test is the most informative of all the caloric tests. The Hallpike test, however, is not a routine procedure in many medical centers and is seldom done in office practice, apparently because the test is thought to be tedious, time consuming, and requiring complex equipment. Actually the biterminal test can be done with precision with little trouble; the modest extra time spent in doing the test will repay the otologist by enabling him to obtain information not elicited by any other vestibular test.
This thermostat (Figure) can be used by the otolaryngologist who does only an occasional caloric test and who does not want to invest in expensive equipment. It has the advantage of being portable and easily adaptable to office practice. The apparatus can be turned on in the morning and is ready for use any time during the day; thereby,
MCGOVERN FH. Inexpensive Thermostat for the Hallpike Test. Arch Otolaryngol. 1966;83(1):53. doi:10.1001/archotol.1966.00760020055014
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