I was diagnosed type 2 last may , symptom was unable to read number plates clearly from about 30 foot. they did a blood test results were 18.4 - should be between 4 - 8 
best bet is take him down the Quacks for a blood test very quick - prick the finger drop of blood on strip, stick in hand held machine , few seconds later you have the answer
or
http://www.valuemed.co.uk/acatalog/Diabetes_Tests.html
for a home testing kit
That doesnt sound a very controlled test for diabetes.....
Test results are dependant on what you've eaten and drunk in the previous 24hrs.
I had a diabetes test done about a year ago as part of other blood tests......my result was 10.....but marked on the test as uncontrolled....as they didnt know what i had eaten in the previous 24hours......so my doc wanted another one done, controlled.
I had to fast for 24hours, only allowed water.
Test results were 7 this time
My Doc reckons its borderline, so wants an 'absolute' test done.
This test (which i havent had done yet) involves again fasting for 24hours....blood test done, then drink a glucose mixture, sit and wait for 2 hours, and then another blood test done.....apparently it tests your body for tolerance to sugar......