Online referrals have made getting a specialist referral easier than ever. A patient books a video call with a registered doctor, talks through symptoms, and walks away with a written referral that an imaging centre will accept.
No queueing at reception. No two-week wait for a slot at the surgery just to be told they’d like to refer the patient onward. That’s the shape of it, anyway. The detail is where things get interesting.
What a Diagnostic Imaging Referral Covers
A diagnostic imaging referral is a letter (or, these days, a PDF) from a clinician stating that the named patient needs a specific scan and giving the clinical reason. Imaging
centres can’t legally scan someone without one. The referral must come from a clinician registered with the GMC and specify what’s being sought and why.
Online providers like Hola Health regularly issue online referrals. The doctor takes a medical history, sometimes does a brief examination over video consultation, and decides whether imaging is the next step. If it is, the referral goes by email, often within minutes. Patients can pick the imaging centre themselves. Most go by location and price. Some go by who can fit them in this week.
MRI Vs CT Scan
MRI uses a strong magnetic field and radio waves to produce images. No radiation involved. It’s brilliant for soft tissue work: ligaments, tendons, brain matter, the spinal cord, anything where the contrast between water-rich structures matters for diagnosis. A scan can take anywhere from 20 to 45 minutes, with the patient lying very still inside. Claustrophobia is a real factor and worth flagging before booking.
CT works differently. It uses X-rays from multiple angles to build a cross-sectional image, and it’s fast. A chest CT can be done in under a minute. It’s strong on bone and lung tissue, and the first choice for suspected internal bleeding. Radiation is involved, which is why doctors don’t hand them out for minor complaints.
For an online MRI referral, the clinician will want to know which symptoms have been present, for how long, and whether anything else has been tried. A persistent knee problem six weeks after a fall? MRI is likely the right call. Sudden severe chest pain in the middle of the night? That’s an A&E conversation, not a scheduled scan.
Cost varies. An MRI of one body part runs roughly £200 to £450 privately. CT scans land in a similar bracket. Centres in central London charge more than those in Croydon or Reading. Worth ringing around.
Can an Online Doctor Refer You to a Specialist
Short answer, yes. Long answer, with some conditions.
A GMC-registered GP working through an online platform can write a referral to a consultant in the same way a high-street GP can. The referral letter then goes to the patient.
What changes between providers is the network. Some online services have their own panel of consultants they regularly work with. Others write open referrals, the patient takes wherever they like, which suits anyone who already has a consultant in mind or who’s been recommended one by a friend.
Private medical insurance usually wants a GP referral before authorising treatment. Most insurers accept referrals from online GPs as long as the doctor is GMC-registered and the consultation is substantive, not a 90-second tickbox. Bupa, AXA and Vitality each have slightly different wording on this, and helpline staff genuinely don’t mind being asked.
Self-paying patients have it easier. The referral is essentially a formality. Once it’s in hand, booking is direct.
Where Ultrasounds and X-rays Fit In
Ultrasound gets less attention than the noisier modalities, which is a shame because it does great work. No radiation or enclosed tube. Most scans don’t need contrast injection either. The probe glides over the area, the sonographer can directly interpret what they’re seeing, and the patient can usually watch the screen if they want to. It’s the standard scan for pregnancy, obviously, but also for gallbladders, thyroids, abdominal pain of uncertain origin, and a lengthy list of soft-tissue questions.
X-rays are the workhorse. Still the right tool when fractures are suspected, for many chest complaints, dental work, and a fair amount of routine orthopaedic checking. Most private imaging centres will scan a walk-in with a referral on the same day.
When the Online Route is the Way Forward
Imaging centres can perform the scan quickly. The written interpretation from the radiologist is what takes time, often 24 to 72 hours, longer for complex MRIs. Patients expecting a verdict the moment they step off the scanner bed are often surprised.
The online referral route works best for people who already have some sense of what’s going on with their body and who’d rather skip the receptionist phone queue. Genuinely urgent symptoms still belong in A&E.
Need a scan sorted quickly? Book a video consultation with a Hola Health GP and get your referral the same day.