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Questions and Answers
What do units help us understand?
What is the unit 'mg' an abbreviation for?
milligrams
Units are only important in the medical field.
False
What does '120 mg/dL' indicate?
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What does 'g/dL' commonly measure?
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What is the purpose of a spectrophotometer in medicine?
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Which medical imaging technique uses high-energy electromagnetic radiation?
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X-ray photons are emitted when high-energy electrons strike a __________.
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What is the mass of an electron?
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Why are units important in medical imaging?
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Study Notes
Units and Blood Analysis
- Units are like labels for numbers, they tell us what the number means.
- Units help us understand measurements and make sure everyone speaks the same language in medicine.
- Medicine dosage, for example, uses units like mg (milligrams) to specify the amount of medicine to be taken.
- Blood sugar levels are measured in mg/dL (milligrams per deciliter of blood), indicating the concentration of sugar in the blood.
- Units prevent mistakes in medicine administration by providing clear and unambiguous measurements.
- Different countries may use different units for the same measurements, requiring conversion for international communication.
- Blood analysis uses units like dL (deciliter) for blood volume, g/dL (grams per deciliter) for the concentration of substances like hemoglobin and proteins, and mmol/L (millimole per liter) for reporting blood glucose levels.
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Expanded Numerical Form and Scientific Notation
- The expanded numerical form writes out every digit of a number for clarity and exact value.
- Scientific notation expresses very large or very small numbers as a product of a base number between 1 and 10 and a power of 10.
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Skeletal Mechanics
- Understanding skeletal mechanics is essential for diagnosing and treating bone-related conditions and injuries.
- The deltoid muscle exerts a force to raise the arm.
- The weight of the arm and the shoulder joint also contribute to the forces involved in arm raising.
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Physics and Medical Instrumentation
- A Scanning Electron Microscope (SEM) uses electron beams to create high-resolution magnified images of tiny objects, like bacteria.
- A spectrophotometer measures the absorbance of light through a sample, allowing doctors to analyze blood components, like hemoglobin concentration.
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Atoms and Molecules
- The human body is composed of atoms and molecules, whose interactions govern its structure and functions.
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X-ray
- X-rays are high-energy electromagnetic radiation used for medical imaging.
- X-rays penetrate the body, creating images of internal structures to diagnose and monitor various medical conditions.
- Computed tomography (CT) scans are a type of X-ray imaging that produces detailed cross-sectional images of the body.
- Over 3.6 billion diagnostic medical X-ray examinations are performed worldwide annually.
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X-ray Production
- X-ray photons are produced when high-energy electrons strike a metal target within an X-ray tube.
- These photons are used for medical imaging.
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Description
This quiz will test your understanding of units used in medical measurements and blood analysis. You'll learn about the importance of standard units like mg, dL, and mmol/L in conveying clear medical information. Assess your knowledge of how different units affect drug dosages and blood test results.
