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Questions and Answers
What is an example of a repetitive measurement in the human body?
What is an example of a repetitive measurement in the human body?
What is a potential cause of measurement error in medicine?
What is a potential cause of measurement error in medicine?
What is the science of terms?
What is the science of terms?
What is a type of error that occurs when a patient is diagnosed with a disease they do not have?
What is a type of error that occurs when a patient is diagnosed with a disease they do not have?
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Which of the following is NOT a field of physics in the body studied in medical physics?
Which of the following is NOT a field of physics in the body studied in medical physics?
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What is the unit of measurement for pressure in medicine?
What is the unit of measurement for pressure in medicine?
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What is a way to reduce diagnostic errors and measurement uncertainties?
What is a way to reduce diagnostic errors and measurement uncertainties?
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What is an application of physics in the practice of medicine?
What is an application of physics in the practice of medicine?
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What type of measurement does a physician take before deciding how to treat a patient?
What type of measurement does a physician take before deciding how to treat a patient?
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What is medical physics concerned with?
What is medical physics concerned with?
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What is the primary goal of ensuring accuracy in medical measurements?
What is the primary goal of ensuring accuracy in medical measurements?
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What are non-repetitive measurements in the human body?
What are non-repetitive measurements in the human body?
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What is a possible effect of inaccurate medical measurements?
What is a possible effect of inaccurate medical measurements?
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What type of measurements does a physician take before deciding how to treat a patient?
What type of measurements does a physician take before deciding how to treat a patient?
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What is a way to reduce false positive and false negative errors in medical measurements?
What is a way to reduce false positive and false negative errors in medical measurements?
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Study Notes
Terminology
- Terminology is the science of terms.
Physics
- Physics is the science of nature.
Medical Physics
- Medical physics is a term that overlaps two fields: medicine and physics.
- It involves the study of physical parameters in the body, such as:
- Pressure
- Force
- Energy
- Power
- Electricity
- It also involves the study of physics in body organs and systems, including:
- Vision
- Hearing
- Skeletal system
- Pulmonary system
- Cardiovascular system
- Nervous system
Applications of Physics in Medicine
- Laser in medicine
- Sound and ultrasound in medicine
- X-rays
- Computed tomography (CT) scanner
- Magnetic resonance imaging (MRI)
- Electrocardiography (ECG)
- Electroencephalography (EEG)
- Electroretinography (ERG)
- Radioisotopes
- Positron emission camera (PEC)
- Gamma (γ) and camera in nuclear medicine and radiotherapy
Biomaterials in Medicine
- Artificial bones
- Lenses
- Lasik used in ophthalmology
- Pacemakers and stents used in cardiovascular diseases
- Grafting materials and nerve conduits
Units in Medicine
- Standard units: some quantities are measured in the same units as in physics, such as:
- Force in newtons
- Work in joules
- Power in watts
- Non-standard units: some quantities are measured in special units, such as:
- Pressure in mmHg or cmHg
- Energy in kilocalories (Kcal) or calories (Cal)
Measurement in Medicine
- Repetitive measurements: involve the number of repetitions per second, minute, and hour, e.g. pulse rate, breathing rate, and frequencies of electrical signals from the brain
- Non-repetitive measurements: involve one-time events, such as:
- Time of kidney function to remove waste from the blood
- Food digestion in the body
- Time intervals of nerve signals
- Eye movement
- Accuracy of measurement: important to minimize errors, otherwise diagnosis or treatment may lead to risky results
- Errors can occur due to:
- Measuring instruments
- Psychological reasons
Reducing Diagnostic Errors and Measurement Uncertainties
- Ways to reduce errors and uncertainties include:
- Researching causes of misleading laboratory test values
- Repeating measurements
- Care in taking measurements
- Developing new clinical tests
- Better instrumentation
- Using reliable instruments
- Calibrating instruments relative to standard or already calibrated instruments
Medical Measurements
- Medical measurements that a physician should take before deciding on treatment include:
- Routine measurements: body temperature, pulse rate, blood pressure, and body weight
- Other required tests according to the patient's case, such as:
- Laboratory investigation
- Body signals investigations
- Machinery measuring instruments
Terminology
- Terminology is the science of terms.
Physics
- Physics is the science of nature.
Medical Physics
- Medical physics is a term that overlaps two fields: medicine and physics.
- It involves the study of physical parameters in the body, such as:
- Pressure
- Force
- Energy
- Power
- Electricity
- It also involves the study of physics in body organs and systems, including:
- Vision
- Hearing
- Skeletal system
- Pulmonary system
- Cardiovascular system
- Nervous system
Applications of Physics in Medicine
- Laser in medicine
- Sound and ultrasound in medicine
- X-rays
- Computed tomography (CT) scanner
- Magnetic resonance imaging (MRI)
- Electrocardiography (ECG)
- Electroencephalography (EEG)
- Electroretinography (ERG)
- Radioisotopes
- Positron emission camera (PEC)
- Gamma (γ) and camera in nuclear medicine and radiotherapy
Biomaterials in Medicine
- Artificial bones
- Lenses
- Lasik used in ophthalmology
- Pacemakers and stents used in cardiovascular diseases
- Grafting materials and nerve conduits
Units in Medicine
- Standard units: some quantities are measured in the same units as in physics, such as:
- Force in newtons
- Work in joules
- Power in watts
- Non-standard units: some quantities are measured in special units, such as:
- Pressure in mmHg or cmHg
- Energy in kilocalories (Kcal) or calories (Cal)
Measurement in Medicine
- Repetitive measurements: involve the number of repetitions per second, minute, and hour, e.g. pulse rate, breathing rate, and frequencies of electrical signals from the brain
- Non-repetitive measurements: involve one-time events, such as:
- Time of kidney function to remove waste from the blood
- Food digestion in the body
- Time intervals of nerve signals
- Eye movement
- Accuracy of measurement: important to minimize errors, otherwise diagnosis or treatment may lead to risky results
- Errors can occur due to:
- Measuring instruments
- Psychological reasons
Reducing Diagnostic Errors and Measurement Uncertainties
- Ways to reduce errors and uncertainties include:
- Researching causes of misleading laboratory test values
- Repeating measurements
- Care in taking measurements
- Developing new clinical tests
- Better instrumentation
- Using reliable instruments
- Calibrating instruments relative to standard or already calibrated instruments
Medical Measurements
- Medical measurements that a physician should take before deciding on treatment include:
- Routine measurements: body temperature, pulse rate, blood pressure, and body weight
- Other required tests according to the patient's case, such as:
- Laboratory investigation
- Body signals investigations
- Machinery measuring instruments
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Description
This quiz covers the overlap of medicine and physics, including physical parameters in the body and physics in various body organs and systems.