The instrument used to record blood pressure is:?

Appeared in: SGPGI Nursing Officer-2022

Explanation

The correct instrument for measuring blood pressure is a sphygmomanometer.
As described in nursing fundamentals, a sphygmomanometer consists of a cuff that inflates to occlude an artery and a manometer that measures the pressure.
This device allows for the determination of systolic and diastolic arterial pressure, which are key components of vital signs assessment.
The image provided shows a digital version of a sphygmomanometer, a common type used in both clinical and home settings.

Option A: An Algometer is a specialized instrument used to measure pain threshold and pain tolerance, specifically pressure pain sensitivity. It does not measure blood pressure.
Option C: A Thermometer is a common device used to measure body temperature, another vital sign, but it cannot measure blood pressure.
Option D: An Aesthesiometer is used to assess tactile sensitivity, such as the ability to distinguish between one or two points touching the skin (two-point discrimination). It is a tool for neurological assessment, not for measuring blood pressure.

Clinical Relevance

Nursing practice connection: Knowing Medical Instruments for Vital Signs Measurement helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
Accurate blood pressure measurement is fundamental in nursing for diagnosing conditions like hypertension, assessing cardiovascular risk, and monitoring the effectiveness of treatments.
Nurses must be proficient in selecting the correct cuff size and using the proper technique to avoid false readings. An incorrectly sized cuff is a common error that can lead to a false-high or false-low reading.
What if the patient has an irregular heart rate? In this case, an automated digital sphygmomanometer may be inaccurate. The nurse should use the manual auscultation method with a sphygmomanometer and stethoscope for a more reliable measurement.

How to Approach the Question

First, identify the core of the question, which is asking for the specific instrument used for measuring 'blood pressure'.
Second, review the options provided. Think about the function of each instrument if you know it.
Third, recall the names of standard medical equipment for measuring vital signs. Blood pressure is measured by a sphygmomanometer, temperature by a thermometer, pulse and respiration are typically counted.
Fourth, eliminate the incorrect options. A 'thermometer' measures temperature. 'Algometer' (pain meter) and 'aesthesiometer' (sensation meter) are more specialized neurological tools, not for routine vital signs.
Finally, select 'Sphygmomanometer' as it is the specific medical term for a blood pressure measuring device.

Concept Tested & Keywords

Q3fIvr4A49f4LmaUXtI1no

E6 Nursing Fundamentals Taylor p. 131-133

E6 Nursing Fundamentals Potter Perry 12e Part 3 p. 27-29

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