20th Century Medicine: improvements in diagnosis Flashcards
Who first developed X-rays in 1895?
Wilhelm Röntgen
What problem was caused by early X-ray machines?
High doses of radiation
What disease (with no symptoms in its early stages) did Alan L. Hart use X-rays to detect earlier?
Tuberculosis
How do ultrasound scans work?
High frequency sound waves build a 3D picture of the inside of the body without using radiation
Give two uses of an ultrasound scan
Diagnosing kidney stones
Monitoring the progress of babies in the womb
What do CT scans generate?
Cross-sectional images of the internal organs and structures of the body
What are CT scans used to diagnose?
Tumours and growths in the body
How do MRI scans work?
They use magnets and radio waves to create an internal image of the body
What problems are MRI scans used to diagnose?
Soft tissue injuries (e.g. ligament damage)
What is used to diagnose high and low blood pressure?
Blood pressure monitors
How are blood pressure monitors used?
The monitor is placed around the upper arm, and its inflatable cuff collapses and releases the artery
What is an endoscope?
A camera on the end of a thin, flexible tube
What problems are usually diagnosed using an endoscope?
Digestive symptoms
What does an ECG do?
Tracks your heart rate and rhythm
What can an ECG spot?
Enlargement of the heart
