15 Questions
What is an example of a repetitive measurement in the human body?
Pulse rate
What is a potential cause of measurement error in medicine?
Both A and B
What is the science of terms?
Terminology
What is a type of error that occurs when a patient is diagnosed with a disease they do not have?
False positive error
Which of the following is NOT a field of physics in the body studied in medical physics?
Neurology
What is the unit of measurement for pressure in medicine?
mmHg
What is a way to reduce diagnostic errors and measurement uncertainties?
Repeating the measurement
What is an application of physics in the practice of medicine?
All of the above
What type of measurement does a physician take before deciding how to treat a patient?
Both A and B
What is medical physics concerned with?
The overlap of medicine and physics
What is the primary goal of ensuring accuracy in medical measurements?
To minimize the risk of misdiagnosis and incorrect treatment
What are non-repetitive measurements in the human body?
Measurements that are not uniform or periodic
What is a possible effect of inaccurate medical measurements?
Increased risk of misdiagnosis and incorrect treatment
What type of measurements does a physician take before deciding how to treat a patient?
A combination of routine and other required measurements
What is a way to reduce false positive and false negative errors in medical measurements?
Repeating measurements and using reliable instruments
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
This quiz covers the overlap of medicine and physics, including physical parameters in the body and physics in various body organs and systems.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
