Patients facing NHS tests 'bottleneck'
A rising number of patients are facing long waits for key NHS tests as UK hospitals struggle with staff shortages, a BBC investigation shows.
Tests such as scans and biopsies are crucial for diagnosing illnesses.
But tens of thousands of patients are waiting weeks - sometimes months - for them, leading to potentially harmful delays before treatment can start.
Figures obtained by the BBC under the Freedom of Information Act suggest a lack of radiographers is a key cause.
They carry out scans and ultrasounds which can detect problems such as tumours, heart disease and multiple sclerosis.