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St Andrews Medical Practice

50 Oakleigh Road North, Whetstone, London, N20 9EX

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Electronic consultations


Guide to looking at your blood results


Blood test results can viewed on your online health record. If you do not yet have online access please ask at reception for a form.


Frequently asked questions:


Question 1:

There is a red exclamation mark next to my abnormal result, but it has still been marked as normal.



Alongside your result will be the laboratory’s reference range. A reference range is the set of values 95% of the normal population falls within. So a good 5% of the normal population will have results that fall outside of this range. There will be a red exclamation mark alongside any result which falls outside of the reference range, but your doctor may still have marked it as normal if it is considered not to be significant.


Some results need to be interpreted taking into account your medical history and your doctor will decide whether there is any clinical significance.


Question 2:

My cholesterol is high but my doctor hasn’t suggested any treatment.



If your cholesterol is high, it is important that you follow a mediterranean diet, exercise regularly and ensure you are not overweight.  High cholesterol levels are associated with an increased risk of heart disease and stroke (cardiovascular disease).


The treatment of a high cholesterol with medication (usually statins) depends on your overall cardiovascular risk (you may see this mentioned on your records as Q risk). People with low cardiovascular risks do not need medications, despite having high cholesterol readings.


Question 2b:

What can I do about my raised cholesterol?



The most important intervention for improving your cardiovascular risk is improving your lifestyle, particularly your diet and getting regular exercise. 




Please refer to the cholesterol link on this page or below. The nurses are able to give you any diet and exercise advice.




Question 3:

My urine blood test is positive. What does this mean and what should I do?



When your urine is dipped in the surgery it can pick up microscopic amounts of blood that is not visible to the eye. It is not uncommon that small amounts of blood are found that are usually not persistent and of no significance. To determine whether the blood is persistent, your doctor will ask you to bring up to 3 samples of urine to test. If there is significant amounts of blood in at least 2 samples, then you will need further tests to investigate the cause.


The most common causes of microscopic blood are urinary tract infections, kidney stones and benign prostate hypertrophy.



Question 4:

What do I need to do if I want to discuss my results with my GP?



You will be initially guided to the links on our website or to www.patient.co.uk where there is a large amount of information and your questions may be answered there. If you still have questions you will be asked to book a non-urgent telephone appointment with one of the doctors of nurses.




Blood Tests

Blood test - general points


Routine kidney tests


Chronic kidney disease


Estimated glomerular filtration rate (EGFR)


Full blood count and blood smear


Liver function Tests


Thyroid function tests


Blood sugar and HBA1C


Glucose Tolerance Test




Prostate Specific Antigen (PSA)




Coeliac Disease


Blood clotting tests


Blood tests to detect inflammation


Vitamin D




Other tests


Blood in urine


Faecal occult blood


Cardiovascular Health Risk Assessment (Q risk)


Ultrasound Scans


Bone Density Scan (Dexa Scan)


MRI Scan



























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