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Thanks guys, just had that done at the GP's earlier as I've had a cold/cough for almost 4 weeks so she said I have a temperature, she listened to my chest and put one of these things on my finger and I saw it said 99 (oxygen levels) which was fine, but didn't see what the top figure was and I don't know what that measures anyway but then she said I need antibiotics and I've to go back next week. So is the other one your pulse rate and does that have a ball park figure?