Lesson Notes By Weeks and Term v4 - SHS 3
DIAGNOSTIC DEVICE
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DIAGNOSTIC DEVICE
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Subject: Biomedical Science
Class: SHS 3
Term: 2nd Term
Week: 4
Grade code: 2.3.1.LI.2
Strand code: 3
Sub-strand code: 1
Content standard code: 2.3.1.CS.1
Indicator code: 2.3.1.LI.2
Theme: BIOMEDICAL INTERVENTION
Subtheme: DIAGNOSTIC DEVICE
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This lesson introduces the fundamental building blocks of modern medical diagnostic devices. From the simple digital thermometer used at home to the complex ECG machine in a hospital, all these devices share a common functional structure. Understanding this structure is crucial for anyone pursuing a career in health or engineering. In Ghana, where managing conditions like diabetes and hypertension is a daily reality for many families, devices like glucometers and blood pressure monitors are becoming common household items. This lesson will demystify how these life-saving tools work, empowering you to be more informed users and potentially, future innovators.
What is a Diagnostic Device?
A diagnostic device is any instrument or equipment used to identify and monitor a physiological or pathological condition in a living organism. In simple terms, it's a tool that measures something in the body to help us understand what is happening with our health.
Examples you may have seen: Blood Pressure Monitor (Sphygmomanometer) Blood Glucose Meter (Glucometer) Digital Thermometer Malaria Rapid Diagnostic Test (RDT) kit Electrocardiogram (ECG) Machine The Four Main Functional Components of a Diagnostic Device
Every electronic diagnostic device, regardless of its complexity, can be understood as a system made of four main functional parts. Think of it like a chain of events. The Measurand