Figures (a, b, c, d) show a student reading a clinical thermometer. Which of the following figures indicates the correct method of reading temperature?

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(a)

(b)

(c)

(d)

answer is A.

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Detailed Solution

Figure (a) indicates the correct method of reading temperature.
The correct approach to reading a clinical thermometer is to hold the thermometer at one's eye level. So that the mercury becomes visible and accurate readings can be taken.
In figures (b) & (c) thermometer is not at eye level. Therefore, it may create the chance of incorrect reading. Hence it is the wrong method of thermometer reading.
In figure (d) thermometer is held by the bulb side, filled with mercury. So one's body temperature can affect the reading of the thermometer.
The method shown in figure (a) is the correct method of reading a thermometer.

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