Match common biomedical instruments to what they primarily measure or help diagnose. List I (Instrument) List II (Use) A. Electro-encephalograph 1. Diagnostic tool for heart ailments B. Electro-cardiograph 2. Diagnostic tool for brain ailments C.

Question

Solve this multiple-choice question and choose the correct option.

Curioustab · Accepted Answer

Introduction / Context:Biomedical instruments are foundational to clinical diagnostics. Correctly associating devices with their clinical roles is important for students in biomedical, electronics, and instrumentation engineering. Given Data / Assumptions: Electro-encephalograph (EEG) measures brain electrical activity. Electro-cardiograph (ECG) records heart electrical activity. Sphygmomanometer measures arterial blood pressure. Stethoscope is an acoustic tool to auscultate heart and lung sounds. Concept / Approach: Match each instrument to its principal clinical function: EEG→brain, ECG→heart, sphygmomanometer→BP, stethoscope→listening to beats/sounds. This is a direct knowledge recall with no calculations. Step-by-Step Solution: EEG is used for brain diagnostics such as epilepsy ⇒ A-2.ECG evaluates cardiac rhythm and conduction ⇒ B-1.Sphygmomanometer measures systolic/diastolic BP ⇒ C-3.Stethoscope is used to hear heart sounds and pulse ⇒ D-4. Verification / Alternative check: Hospital workflows: neurologists rely on EEG; cardiologists on ECG; nurses use sphygmomanometers for vitals; stethoscopes are ubiquitous for auscultation. These confirm the mapping. Why Other Options Are Wrong: Swapping EEG with ECG misassigns organ systems. Attributing BP measurement to a stethoscope confuses accessory use (Korotkoff sounds) with the measuring device. Common Pitfalls: Confusing the role of the stethoscope during manual BP measurement: it detects sounds, but pressure is measured by the cuff/gauge (sphygmomanometer). Final Answer: A-2, B-1, C-3, D-4

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