how long should a clinical thermometer that has a thermal lag (L) of 0.47 minute
ID: 1691019 • Letter: H
Question
how long should a clinical thermometer that has a thermal lag (L) of 0.47 minutes be left in the mouth of a normal, healthy patient (98.6 degrees F) in order to register within 0.2 degrees F of the correct temperature, assuming a room temperature of 72 degrees F? How long should it be left in the mouth of a patient with a high fever of 102.8 degrees F to get an accurate reading? how long should a clinical thermometer that has a thermal lag (L) of 0.47 minutes be left in the mouth of a normal, healthy patient (98.6 degrees F) in order to register within 0.2 degrees F of the correct temperature, assuming a room temperature of 72 degrees F? How long should it be left in the mouth of a patient with a high fever of 102.8 degrees F to get an accurate reading?Explanation / Answer
Given Normal temperature ,T1 = 98.6^0 F Room temperature, T2 = 72 ^0 F Time given, t = 0.47 min Change in temperature = 98.6^0F -72 ^0 F =26.6 ^0 F 26.6 ^0 F thermal lag in 0.47 min In1 min it is 26.6/0.47 =56.59^0F/min ------------------------------------------------------------------------- Temperature of high fever, T3 = 102.8 ^0 F Change in temperature = 102.8^0F -72 ^0 F =30.8 ^0 F For 1 min, the thermal lag is 56.59 ^0F/min The time the thermometer should be left in the patient's mouth is t = (30.8 ^0 F)/(56.59 ^0F/min) =0.54 min t =0.54 minRelated Questions
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